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Posted to commits@lucene.apache.org by cp...@apache.org on 2017/03/30 17:25:22 UTC

[53/73] [abbrv] lucene-solr:jira/solr-6203: LUCENE-7754: Inner classes should be static whenever possible.

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/lucene/tools/src/java/org/apache/lucene/validation/LibVersionsCheckTask.java
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diff --git a/lucene/tools/src/java/org/apache/lucene/validation/LibVersionsCheckTask.java b/lucene/tools/src/java/org/apache/lucene/validation/LibVersionsCheckTask.java
index 3179c78..d7844b0 100644
--- a/lucene/tools/src/java/org/apache/lucene/validation/LibVersionsCheckTask.java
+++ b/lucene/tools/src/java/org/apache/lucene/validation/LibVersionsCheckTask.java
@@ -150,7 +150,7 @@ public class LibVersionsCheckTask extends Task {
    */
   private Map<String,HashSet<String>> ignoreConflictVersions = new HashMap<>();
 
-  private class Dependency {
+  private static class Dependency {
     String org;
     String name;
     String directVersion;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/contrib/dataimporthandler-extras/src/java/org/apache/solr/handler/dataimport/MailEntityProcessor.java
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diff --git a/solr/contrib/dataimporthandler-extras/src/java/org/apache/solr/handler/dataimport/MailEntityProcessor.java b/solr/contrib/dataimporthandler-extras/src/java/org/apache/solr/handler/dataimport/MailEntityProcessor.java
index 7545eac..d4418da 100644
--- a/solr/contrib/dataimporthandler-extras/src/java/org/apache/solr/handler/dataimport/MailEntityProcessor.java
+++ b/solr/contrib/dataimporthandler-extras/src/java/org/apache/solr/handler/dataimport/MailEntityProcessor.java
@@ -728,8 +728,8 @@ public class MailEntityProcessor extends EntityProcessorBase {
       return true;
     }
   }
-  
-  class MailsSinceLastCheckFilter implements CustomFilter {
+
+  static class MailsSinceLastCheckFilter implements CustomFilter {
     
     private Date since;
     

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/VariableResolver.java
----------------------------------------------------------------------
diff --git a/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/VariableResolver.java b/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/VariableResolver.java
index 51b5841..8fced58 100644
--- a/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/VariableResolver.java
+++ b/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/VariableResolver.java
@@ -167,7 +167,7 @@ public class VariableResolver {
     return TemplateUpdateProcessorFactory.getVariables(expr, cache);
   }
 
-  class CurrentLevel {
+  static class CurrentLevel {
     final Map<String,Object> map;
     final int level;
     CurrentLevel(int level, Map<String,Object> map) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractDIHCacheTestCase.java
----------------------------------------------------------------------
diff --git a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractDIHCacheTestCase.java b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractDIHCacheTestCase.java
index b72f379..2ef5a91 100644
--- a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractDIHCacheTestCase.java
+++ b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractDIHCacheTestCase.java
@@ -73,7 +73,7 @@ public class AbstractDIHCacheTestCase {
 
   //A limitation of this test class is that the primary key needs to be the first one in the list.
   //DIHCaches, however, can handle any field being the primary key.
-  class ControlData implements Comparable<ControlData>, Iterable<Object> {
+  static class ControlData implements Comparable<ControlData>, Iterable<Object> {
     Object[] data;
 
     ControlData(Object[] data) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractSqlEntityProcessorTestCase.java
----------------------------------------------------------------------
diff --git a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractSqlEntityProcessorTestCase.java b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractSqlEntityProcessorTestCase.java
index 06b89c3..2774044 100644
--- a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractSqlEntityProcessorTestCase.java
+++ b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/AbstractSqlEntityProcessorTestCase.java
@@ -568,8 +568,8 @@ public abstract class AbstractSqlEntityProcessorTestCase extends
     }
     return changeSet.toArray(new String[changeSet.size()]);
   }
-  
-  class IntChanges {
+
+  static class IntChanges {
     public Integer[] changedKeys;
     public Integer[] deletedKeys;
     public Integer[] addedKeys;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestContentStreamDataSource.java
----------------------------------------------------------------------
diff --git a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestContentStreamDataSource.java b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestContentStreamDataSource.java
index 95af5f9..089a133 100644
--- a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestContentStreamDataSource.java
+++ b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestContentStreamDataSource.java
@@ -109,7 +109,7 @@ public class TestContentStreamDataSource extends AbstractDataImportHandlerTestCa
     fail("Commit should have occured but it did not");
   }
   
-  private class SolrInstance {
+  private static class SolrInstance {
     String name;
     Integer port;
     File homeDir;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/contrib/extraction/src/java/org/apache/solr/handler/extraction/XLSXResponseWriter.java
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diff --git a/solr/contrib/extraction/src/java/org/apache/solr/handler/extraction/XLSXResponseWriter.java b/solr/contrib/extraction/src/java/org/apache/solr/handler/extraction/XLSXResponseWriter.java
index 27a30d1..92bd01f 100644
--- a/solr/contrib/extraction/src/java/org/apache/solr/handler/extraction/XLSXResponseWriter.java
+++ b/solr/contrib/extraction/src/java/org/apache/solr/handler/extraction/XLSXResponseWriter.java
@@ -98,7 +98,7 @@ class XLSXWriter extends TextResponseWriter {
   SolrQueryRequest req;
   SolrQueryResponse rsp;
 
-  class SerialWriteWorkbook {
+  static class SerialWriteWorkbook {
     SXSSFWorkbook swb;
     Sheet sh;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/contrib/ltr/src/java/org/apache/solr/ltr/LTRScoringQuery.java
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diff --git a/solr/contrib/ltr/src/java/org/apache/solr/ltr/LTRScoringQuery.java b/solr/contrib/ltr/src/java/org/apache/solr/ltr/LTRScoringQuery.java
index 37990ea..6ecbb6f 100644
--- a/solr/contrib/ltr/src/java/org/apache/solr/ltr/LTRScoringQuery.java
+++ b/solr/contrib/ltr/src/java/org/apache/solr/ltr/LTRScoringQuery.java
@@ -300,7 +300,7 @@ public class LTRScoringQuery extends Query {
     return field;
   }
 
-  public class FeatureInfo {
+  public static class FeatureInfo {
     final private String name;
     private float value;
     private boolean used;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/contrib/ltr/src/test/org/apache/solr/ltr/TestLTRReRankingPipeline.java
----------------------------------------------------------------------
diff --git a/solr/contrib/ltr/src/test/org/apache/solr/ltr/TestLTRReRankingPipeline.java b/solr/contrib/ltr/src/test/org/apache/solr/ltr/TestLTRReRankingPipeline.java
index a98fc4f..75d3538 100644
--- a/solr/contrib/ltr/src/test/org/apache/solr/ltr/TestLTRReRankingPipeline.java
+++ b/solr/contrib/ltr/src/test/org/apache/solr/ltr/TestLTRReRankingPipeline.java
@@ -80,7 +80,7 @@ public class TestLTRReRankingPipeline extends LuceneTestCase {
     return features;
   }
 
-  private class MockModel extends LTRScoringModel {
+  private static class MockModel extends LTRScoringModel {
 
     public MockModel(String name, List<Feature> features,
         List<Normalizer> norms,

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/contrib/velocity/src/java/org/apache/solr/response/VelocityResponseWriter.java
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diff --git a/solr/contrib/velocity/src/java/org/apache/solr/response/VelocityResponseWriter.java b/solr/contrib/velocity/src/java/org/apache/solr/response/VelocityResponseWriter.java
index e7cc9b7..133bc63 100644
--- a/solr/contrib/velocity/src/java/org/apache/solr/response/VelocityResponseWriter.java
+++ b/solr/contrib/velocity/src/java/org/apache/solr/response/VelocityResponseWriter.java
@@ -376,7 +376,7 @@ public class VelocityResponseWriter implements QueryResponseWriter, SolrCoreAwar
   }
 
   // see: http://svn.apache.org/repos/asf/velocity/tools/branches/2.0.x/src/main/java/org/apache/velocity/tools/generic/ResourceTool.java
-  private class SolrVelocityResourceTool extends ResourceTool {
+  private static class SolrVelocityResourceTool extends ResourceTool {
 
     private ClassLoader solrClassLoader;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/cloud/Overseer.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/cloud/Overseer.java b/solr/core/src/java/org/apache/solr/cloud/Overseer.java
index e0449b4..4d3cee7 100644
--- a/solr/core/src/java/org/apache/solr/cloud/Overseer.java
+++ b/solr/core/src/java/org/apache/solr/cloud/Overseer.java
@@ -431,7 +431,7 @@ public class Overseer implements Closeable {
 
   }
 
-  class OverseerThread extends Thread implements Closeable {
+  static class OverseerThread extends Thread implements Closeable {
 
     protected volatile boolean isClosed;
     private Closeable thread;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/cloud/OverseerTaskQueue.java
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diff --git a/solr/core/src/java/org/apache/solr/cloud/OverseerTaskQueue.java b/solr/core/src/java/org/apache/solr/cloud/OverseerTaskQueue.java
index c7604d6..e031303 100644
--- a/solr/core/src/java/org/apache/solr/cloud/OverseerTaskQueue.java
+++ b/solr/core/src/java/org/apache/solr/cloud/OverseerTaskQueue.java
@@ -108,7 +108,7 @@ public class OverseerTaskQueue extends DistributedQueue {
   /**
    * Watcher that blocks until a WatchedEvent occurs for a znode.
    */
-  private final class LatchWatcher implements Watcher {
+  private static final class LatchWatcher implements Watcher {
 
     private final Object lock;
     private WatchedEvent event;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/cloud/ZkController.java
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diff --git a/solr/core/src/java/org/apache/solr/cloud/ZkController.java b/solr/core/src/java/org/apache/solr/cloud/ZkController.java
index 69a77f9..a3f1fd4 100644
--- a/solr/core/src/java/org/apache/solr/cloud/ZkController.java
+++ b/solr/core/src/java/org/apache/solr/cloud/ZkController.java
@@ -239,7 +239,7 @@ public class ZkController {
   }
 
   // notifies registered listeners after the ZK reconnect in the background
-  private class OnReconnectNotifyAsync implements Callable {
+  private static class OnReconnectNotifyAsync implements Callable {
 
     private final OnReconnect listener;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/core/CachingDirectoryFactory.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/core/CachingDirectoryFactory.java b/solr/core/src/java/org/apache/solr/core/CachingDirectoryFactory.java
index 08a8a4e..e710063 100644
--- a/solr/core/src/java/org/apache/solr/core/CachingDirectoryFactory.java
+++ b/solr/core/src/java/org/apache/solr/core/CachingDirectoryFactory.java
@@ -48,7 +48,7 @@ import org.slf4j.LoggerFactory;
  * 
  */
 public abstract class CachingDirectoryFactory extends DirectoryFactory {
-  protected class CacheValue {
+  protected static class CacheValue {
     final public String path;
     final public Directory directory;
     // for debug

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/handler/CdcrReplicator.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/CdcrReplicator.java b/solr/core/src/java/org/apache/solr/handler/CdcrReplicator.java
index 75a787b..a151a43 100644
--- a/solr/core/src/java/org/apache/solr/handler/CdcrReplicator.java
+++ b/solr/core/src/java/org/apache/solr/handler/CdcrReplicator.java
@@ -207,7 +207,7 @@ public class CdcrReplicator implements Runnable {
   /**
    * Exception to catch update request issues with the target cluster.
    */
-  public class CdcrReplicatorException extends Exception {
+  public static class CdcrReplicatorException extends Exception {
 
     private final UpdateRequest req;
     private final UpdateResponse rsp;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/handler/CdcrReplicatorState.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/CdcrReplicatorState.java b/solr/core/src/java/org/apache/solr/handler/CdcrReplicatorState.java
index 2ca0d80..bf80608 100644
--- a/solr/core/src/java/org/apache/solr/handler/CdcrReplicatorState.java
+++ b/solr/core/src/java/org/apache/solr/handler/CdcrReplicatorState.java
@@ -197,7 +197,7 @@ class CdcrReplicatorState {
 
   }
 
-  class BenchmarkTimer {
+  static class BenchmarkTimer {
 
     private long startTime;
     private long runTime = 0;
@@ -266,7 +266,7 @@ class CdcrReplicatorState {
 
   }
 
-  private class ErrorQueueEntry {
+  private static class ErrorQueueEntry {
 
     private ErrorType type;
     private Date timestamp;
@@ -277,7 +277,7 @@ class CdcrReplicatorState {
     }
   }
 
-  private class FixedQueue<E> extends LinkedList<E> {
+  private static class FixedQueue<E> extends LinkedList<E> {
 
     private int maxSize;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/handler/ExportWriter.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/ExportWriter.java b/solr/core/src/java/org/apache/solr/handler/ExportWriter.java
index 7602d9e..bd43d5f 100644
--- a/solr/core/src/java/org/apache/solr/handler/ExportWriter.java
+++ b/solr/core/src/java/org/apache/solr/handler/ExportWriter.java
@@ -939,7 +939,7 @@ public class ExportWriter implements SolrCore.RawWriter, Closeable {
     public int resetValue();
   }
 
-  class IntDesc implements IntComp {
+  static class IntDesc implements IntComp {
 
     public int resetValue() {
       return Integer.MIN_VALUE;
@@ -956,7 +956,7 @@ public class ExportWriter implements SolrCore.RawWriter, Closeable {
     }
   }
 
-  class IntAsc implements IntComp {
+  static class IntAsc implements IntComp {
 
     public int resetValue() {
       return Integer.MAX_VALUE;
@@ -1032,7 +1032,7 @@ public class ExportWriter implements SolrCore.RawWriter, Closeable {
     public long resetValue();
   }
 
-  class LongDesc implements LongComp {
+  static class LongDesc implements LongComp {
 
     public long resetValue() {
       return Long.MIN_VALUE;
@@ -1049,7 +1049,7 @@ public class ExportWriter implements SolrCore.RawWriter, Closeable {
     }
   }
 
-  class LongAsc implements LongComp {
+  static class LongAsc implements LongComp {
 
     public long resetValue() {
       return Long.MAX_VALUE;
@@ -1125,7 +1125,7 @@ public class ExportWriter implements SolrCore.RawWriter, Closeable {
     public float resetValue();
   }
 
-  public class FloatDesc implements FloatComp {
+  public static class FloatDesc implements FloatComp {
     public float resetValue() {
       return -Float.MAX_VALUE;
     }
@@ -1141,7 +1141,7 @@ public class ExportWriter implements SolrCore.RawWriter, Closeable {
     }
   }
 
-  public class FloatAsc implements FloatComp {
+  public static class FloatAsc implements FloatComp {
     public float resetValue() {
       return Float.MAX_VALUE;
     }
@@ -1219,7 +1219,7 @@ public class ExportWriter implements SolrCore.RawWriter, Closeable {
     public double resetValue();
   }
 
-  public class DoubleDesc implements DoubleComp {
+  public static class DoubleDesc implements DoubleComp {
     public double resetValue() {
       return -Double.MAX_VALUE;
     }
@@ -1235,7 +1235,7 @@ public class ExportWriter implements SolrCore.RawWriter, Closeable {
     }
   }
 
-  public class DoubleAsc implements DoubleComp {
+  public static class DoubleAsc implements DoubleComp {
     public double resetValue() {
       return Double.MAX_VALUE;
     }
@@ -1712,7 +1712,7 @@ public class ExportWriter implements SolrCore.RawWriter, Closeable {
     }
   }
 
-  public class IgnoreException extends IOException {
+  public static class IgnoreException extends IOException {
     public void printStackTrace(PrintWriter pw) {
       pw.print("Early Client Disconnect");
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/handler/IndexFetcher.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/IndexFetcher.java b/solr/core/src/java/org/apache/solr/handler/IndexFetcher.java
index 5efb6c5..d79effd 100644
--- a/solr/core/src/java/org/apache/solr/handler/IndexFetcher.java
+++ b/solr/core/src/java/org/apache/solr/handler/IndexFetcher.java
@@ -1690,7 +1690,7 @@ public class IndexFetcher {
     }
   }
 
-  private class DirectoryFile implements FileInterface {
+  private static class DirectoryFile implements FileInterface {
     private final String saveAs;
     private Directory copy2Dir;
     private IndexOutput outStream;
@@ -1725,7 +1725,7 @@ public class IndexFetcher {
     }
   }
 
-  private class LocalFsFile implements FileInterface {
+  private static class LocalFsFile implements FileInterface {
     private File copy2Dir;
 
     FileChannel fileChannel;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/handler/SQLHandler.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/SQLHandler.java b/solr/core/src/java/org/apache/solr/handler/SQLHandler.java
index 7563fe8..f307baa 100644
--- a/solr/core/src/java/org/apache/solr/handler/SQLHandler.java
+++ b/solr/core/src/java/org/apache/solr/handler/SQLHandler.java
@@ -141,7 +141,7 @@ public class SQLHandler extends RequestHandlerBase implements SolrCoreAware, Per
   /*
    * Only necessary for SolrJ JDBC driver since metadata has to be passed back
    */
-  private class SqlHandlerStream extends JDBCStream {
+  private static class SqlHandlerStream extends JDBCStream {
     private final boolean includeMetadata;
     private boolean firstTuple = true;
     List<String> metadataFields = new ArrayList<>();

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java b/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java
index 8078bdc..f6ecd8d 100644
--- a/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java
+++ b/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java
@@ -521,7 +521,7 @@ public class ExpandComponent extends SearchComponent implements PluginInfoInitia
     rb.rsp.add("expanded", expanded);
   }
 
-  private class GroupExpandCollector implements Collector, GroupCollector {
+  private static class GroupExpandCollector implements Collector, GroupCollector {
     private SortedDocValues docValues;
     private MultiDocValues.OrdinalMap ordinalMap;
     private SortedDocValues segmentValues;
@@ -614,7 +614,7 @@ public class ExpandComponent extends SearchComponent implements PluginInfoInitia
     }
   }
 
-  private class NumericGroupExpandCollector implements Collector, GroupCollector {
+  private static class NumericGroupExpandCollector implements Collector, GroupCollector {
     private NumericDocValues docValues;
 
     private String field;
@@ -763,7 +763,7 @@ public class ExpandComponent extends SearchComponent implements PluginInfoInitia
 
   // this reader alters the content of the given reader so it should not
   // delegate the caching stuff
-  private class ReaderWrapper extends FilterLeafReader {
+  private static class ReaderWrapper extends FilterLeafReader {
 
     private String field;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandlerFactory.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandlerFactory.java b/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandlerFactory.java
index 83a2d60..1c016c7 100644
--- a/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandlerFactory.java
+++ b/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandlerFactory.java
@@ -283,7 +283,7 @@ public class HttpShardHandlerFactory extends ShardHandlerFactory implements org.
    * If all nodes prefer local-cores then a bad/heavily-loaded node will receive less requests from healthy nodes.
    * This will help prevent a distributed deadlock or timeouts in all the healthy nodes due to one bad node.
    */
-  private class IsOnPreferredHostComparator implements Comparator<Object> {
+  private static class IsOnPreferredHostComparator implements Comparator<Object> {
     final private String preferredHostAddress;
     public IsOnPreferredHostComparator(String preferredHostAddress) {
       this.preferredHostAddress = preferredHostAddress;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/handler/component/PivotFacetFieldValueCollection.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/component/PivotFacetFieldValueCollection.java b/solr/core/src/java/org/apache/solr/handler/component/PivotFacetFieldValueCollection.java
index 6aae231..5c2b07f 100644
--- a/solr/core/src/java/org/apache/solr/handler/component/PivotFacetFieldValueCollection.java
+++ b/solr/core/src/java/org/apache/solr/handler/component/PivotFacetFieldValueCollection.java
@@ -301,7 +301,7 @@ public class PivotFacetFieldValueCollection implements Iterable<PivotFacetValue>
   }
     
   /** Sorts {@link PivotFacetValue} instances by their count */
-  public class PivotFacetCountComparator implements Comparator<PivotFacetValue> {    
+  public static class PivotFacetCountComparator implements Comparator<PivotFacetValue> {
     public int compare(PivotFacetValue left, PivotFacetValue right) {
       int countCmp = right.getCount() - left.getCount();
       return (0 != countCmp) ? countCmp : 
@@ -310,7 +310,7 @@ public class PivotFacetFieldValueCollection implements Iterable<PivotFacetValue>
   }
   
   /** Sorts {@link PivotFacetValue} instances by their value */
-  public class PivotFacetValueComparator implements Comparator<PivotFacetValue> {
+  public static class PivotFacetValueComparator implements Comparator<PivotFacetValue> {
     public int compare(PivotFacetValue left, PivotFacetValue right) {
       return compareWithNullLast(left.getValue(), right.getValue());
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/handler/component/TermsComponent.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/component/TermsComponent.java b/solr/core/src/java/org/apache/solr/handler/component/TermsComponent.java
index b76537a..e00120c 100644
--- a/solr/core/src/java/org/apache/solr/handler/component/TermsComponent.java
+++ b/solr/core/src/java/org/apache/solr/handler/component/TermsComponent.java
@@ -353,7 +353,7 @@ public class TermsComponent extends SearchComponent {
     return sreq;
   }
 
-  public class TermsHelper {
+  public static class TermsHelper {
     // map to store returned terms
     private HashMap<String, HashMap<String, TermsResponse.Term>> fieldmap;
     private SolrParams params;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/highlight/DefaultSolrHighlighter.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/highlight/DefaultSolrHighlighter.java b/solr/core/src/java/org/apache/solr/highlight/DefaultSolrHighlighter.java
index e4ada59..098e1f7 100644
--- a/solr/core/src/java/org/apache/solr/highlight/DefaultSolrHighlighter.java
+++ b/solr/core/src/java/org/apache/solr/highlight/DefaultSolrHighlighter.java
@@ -750,7 +750,7 @@ public class DefaultSolrHighlighter extends SolrHighlighter implements PluginInf
   }
 
   // Wraps FVH to allow pass-by-reference. Public access to allow use in 3rd party subclasses
-  public class FvhContainer {
+  public static class FvhContainer {
     FastVectorHighlighter fvh;
     FieldQuery fieldQuery;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/schema/ManagedIndexSchema.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/schema/ManagedIndexSchema.java b/solr/core/src/java/org/apache/solr/schema/ManagedIndexSchema.java
index b22feab..9bc888d 100644
--- a/solr/core/src/java/org/apache/solr/schema/ManagedIndexSchema.java
+++ b/solr/core/src/java/org/apache/solr/schema/ManagedIndexSchema.java
@@ -368,13 +368,13 @@ public final class ManagedIndexSchema extends IndexSchema {
   }
 
 
-  public class FieldExistsException extends SolrException {
+  public static class FieldExistsException extends SolrException {
     public FieldExistsException(ErrorCode code, String msg) {
       super(code, msg);
     }
   }
 
-  public class SchemaChangedInZkException extends SolrException {
+  public static class SchemaChangedInZkException extends SolrException {
     public SchemaChangedInZkException(ErrorCode code, String msg) {
       super(code, msg);
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/schema/RandomSortField.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/schema/RandomSortField.java b/solr/core/src/java/org/apache/solr/schema/RandomSortField.java
index 0ecb195..44bb420 100644
--- a/solr/core/src/java/org/apache/solr/schema/RandomSortField.java
+++ b/solr/core/src/java/org/apache/solr/schema/RandomSortField.java
@@ -160,7 +160,7 @@ public class RandomSortField extends FieldType {
 
 
 
-  public class RandomValueSource extends ValueSource {
+  public static class RandomValueSource extends ValueSource {
     private final String field;
 
     public RandomValueSource(String field) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/ComplexPhraseQParserPlugin.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/ComplexPhraseQParserPlugin.java b/solr/core/src/java/org/apache/solr/search/ComplexPhraseQParserPlugin.java
index 22702dc..2a00a09 100644
--- a/solr/core/src/java/org/apache/solr/search/ComplexPhraseQParserPlugin.java
+++ b/solr/core/src/java/org/apache/solr/search/ComplexPhraseQParserPlugin.java
@@ -59,9 +59,9 @@ public class ComplexPhraseQParserPlugin extends QParserPlugin {
   /**
    * Modified from {@link org.apache.solr.search.LuceneQParser} and {@link org.apache.solr.search.SurroundQParserPlugin.SurroundQParser}
    */
-  class ComplexPhraseQParser extends QParser {
+  static class ComplexPhraseQParser extends QParser {
 
-    final class SolrQueryParserDelegate extends SolrQueryParser {
+    static final class SolrQueryParserDelegate extends SolrQueryParser {
       private SolrQueryParserDelegate(QParser parser, String defaultField) {
         super(parser, defaultField);
       }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/ExportQParserPlugin.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/ExportQParserPlugin.java b/solr/core/src/java/org/apache/solr/search/ExportQParserPlugin.java
index 38bb74f..6c1714c 100644
--- a/solr/core/src/java/org/apache/solr/search/ExportQParserPlugin.java
+++ b/solr/core/src/java/org/apache/solr/search/ExportQParserPlugin.java
@@ -121,7 +121,7 @@ public class ExportQParserPlugin extends QParserPlugin {
     }
   }
   
-  private class ExportCollector extends TopDocsCollector  {
+  private static class ExportCollector extends TopDocsCollector  {
 
     private FixedBitSet[] sets;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/ExtendedDismaxQParser.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/ExtendedDismaxQParser.java b/solr/core/src/java/org/apache/solr/search/ExtendedDismaxQParser.java
index c0aee88..a4f9312 100644
--- a/solr/core/src/java/org/apache/solr/search/ExtendedDismaxQParser.java
+++ b/solr/core/src/java/org/apache/solr/search/ExtendedDismaxQParser.java
@@ -956,7 +956,7 @@ public class ExtendedDismaxQParser extends QParser {
     
     /** A simple container for storing alias info
      */
-    protected class Alias {
+    protected static class Alias {
       public float tie;
       public Map<String,Float> fields;
     }
@@ -1597,7 +1597,7 @@ public class ExtendedDismaxQParser extends QParser {
   /**
    * Simple container for configuration information used when parsing queries
    */
-  public class ExtendedDismaxConfiguration {
+  public static class ExtendedDismaxConfiguration {
     
     /**
      * The field names specified by 'qf' that (most) clauses will 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/HashQParserPlugin.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/HashQParserPlugin.java b/solr/core/src/java/org/apache/solr/search/HashQParserPlugin.java
index 3e0fc22..dc75289 100644
--- a/solr/core/src/java/org/apache/solr/search/HashQParserPlugin.java
+++ b/solr/core/src/java/org/apache/solr/search/HashQParserPlugin.java
@@ -59,7 +59,7 @@ public class HashQParserPlugin extends QParserPlugin {
     return new HashQParser(query, localParams, params, request);
   }
 
-  private class HashQParser extends QParser {
+  private static class HashQParser extends QParser {
 
     public HashQParser(String query, SolrParams localParams, SolrParams params, SolrQueryRequest request) {
       super(query, localParams, params, request);
@@ -74,7 +74,7 @@ public class HashQParserPlugin extends QParserPlugin {
     }
   }
 
-  private class HashQuery extends ExtendedQueryBase implements PostFilter {
+  private static class HashQuery extends ExtendedQueryBase implements PostFilter {
 
     private String keysParam;
     private int workers;
@@ -135,7 +135,7 @@ public class HashQParserPlugin extends QParserPlugin {
       return searcher.rewrite(constantScoreQuery).createWeight(searcher, false, boost);
     }
 
-    public class BitsFilter extends Filter {
+    public static class BitsFilter extends Filter {
       private FixedBitSet[] bitSets;
       public BitsFilter(FixedBitSet[] bitSets) {
         this.bitSets = bitSets;
@@ -166,7 +166,7 @@ public class HashQParserPlugin extends QParserPlugin {
     }
 
 
-    class SegmentPartitioner implements Runnable {
+    static class SegmentPartitioner implements Runnable {
 
       public LeafReaderContext context;
       private int worker;
@@ -238,7 +238,7 @@ public class HashQParserPlugin extends QParserPlugin {
     }
   }
 
-  private class HashCollector extends DelegatingCollector {
+  private static class HashCollector extends DelegatingCollector {
     private int worker;
     private int workers;
     private HashKey hashKey;
@@ -271,7 +271,7 @@ public class HashQParserPlugin extends QParserPlugin {
     public long hashCode(int doc) throws IOException;
   }
 
-  private class BytesHash implements HashKey {
+  private static class BytesHash implements HashKey {
 
     private SortedDocValues values;
     private String field;
@@ -303,7 +303,7 @@ public class HashQParserPlugin extends QParserPlugin {
     }
   }
 
-  private class NumericHash implements HashKey {
+  private static class NumericHash implements HashKey {
 
     private NumericDocValues values;
     private String field;
@@ -331,7 +331,7 @@ public class HashQParserPlugin extends QParserPlugin {
     }
   }
 
-  private class ZeroHash implements HashKey {
+  private static class ZeroHash implements HashKey {
 
     public long hashCode(int doc) {
       return 0;
@@ -342,7 +342,7 @@ public class HashQParserPlugin extends QParserPlugin {
     }
   }
 
-  private class CompositeHash implements HashKey {
+  private static class CompositeHash implements HashKey {
 
     private HashKey key1;
     private HashKey key2;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/ReRankCollector.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/ReRankCollector.java b/solr/core/src/java/org/apache/solr/search/ReRankCollector.java
index 1ac1eaf..8f6bb76 100644
--- a/solr/core/src/java/org/apache/solr/search/ReRankCollector.java
+++ b/solr/core/src/java/org/apache/solr/search/ReRankCollector.java
@@ -139,7 +139,7 @@ public class ReRankCollector extends TopDocsCollector {
     }
   }
 
-  public class BoostedComp implements Comparator {
+  public static class BoostedComp implements Comparator {
     IntFloatHashMap boostedMap;
 
     public BoostedComp(IntIntHashMap boostedDocs, ScoreDoc[] scoreDocs, float maxScore) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java b/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java
index 3e8bf86..1190cdb 100644
--- a/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java
+++ b/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java
@@ -71,7 +71,7 @@ public class ReRankQParserPlugin extends QParserPlugin {
     }
   }
 
-  private final class ReRankQueryRescorer extends QueryRescorer {
+  private static final class ReRankQueryRescorer extends QueryRescorer {
 
     final double reRankWeight;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/facet/FacetFieldMerger.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/facet/FacetFieldMerger.java b/solr/core/src/java/org/apache/solr/search/facet/FacetFieldMerger.java
index 9f99919..63e8743 100644
--- a/solr/core/src/java/org/apache/solr/search/facet/FacetFieldMerger.java
+++ b/solr/core/src/java/org/apache/solr/search/facet/FacetFieldMerger.java
@@ -169,7 +169,7 @@ public class FacetFieldMerger extends FacetRequestSortedMerger<FacetField> {
 
 
 
-  private class FacetNumBucketsMerger extends FacetMerger {
+  private static class FacetNumBucketsMerger extends FacetMerger {
     long sumBuckets;
     long shardsMissingSum;
     long shardsTruncatedSum;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/facet/UniqueAgg.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/facet/UniqueAgg.java b/solr/core/src/java/org/apache/solr/search/facet/UniqueAgg.java
index 5e1e97c..4cdfe02 100644
--- a/solr/core/src/java/org/apache/solr/search/facet/UniqueAgg.java
+++ b/solr/core/src/java/org/apache/solr/search/facet/UniqueAgg.java
@@ -187,7 +187,7 @@ public class UniqueAgg extends StrAggValueSource {
   }
 
 
-  class NumericAcc extends SlotAcc {
+  static class NumericAcc extends SlotAcc {
     SchemaField sf;
     LongSet[] sets;
     NumericDocValues values;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/function/CollapseScoreFunction.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/function/CollapseScoreFunction.java b/solr/core/src/java/org/apache/solr/search/function/CollapseScoreFunction.java
index 5378ea0..3932f56 100644
--- a/solr/core/src/java/org/apache/solr/search/function/CollapseScoreFunction.java
+++ b/solr/core/src/java/org/apache/solr/search/function/CollapseScoreFunction.java
@@ -45,7 +45,7 @@ public class CollapseScoreFunction extends ValueSource {
     return new CollapseScoreFunctionValues(context);
   }
 
-  public class CollapseScoreFunctionValues extends FunctionValues {
+  public static class CollapseScoreFunctionValues extends FunctionValues {
 
     private CollapseScore cscore;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/search/join/GraphQuery.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/join/GraphQuery.java b/solr/core/src/java/org/apache/solr/search/join/GraphQuery.java
index 3f762e3..db41651 100644
--- a/solr/core/src/java/org/apache/solr/search/join/GraphQuery.java
+++ b/solr/core/src/java/org/apache/solr/search/join/GraphQuery.java
@@ -315,7 +315,7 @@ public class GraphQuery extends Query {
     
   }
   
-  private class GraphScorer extends Scorer {
+  private static class GraphScorer extends Scorer {
     
     final DocIdSetIterator iter;
     final float score;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/spelling/PossibilityIterator.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/spelling/PossibilityIterator.java b/solr/core/src/java/org/apache/solr/spelling/PossibilityIterator.java
index c4a7503..0203f18 100644
--- a/solr/core/src/java/org/apache/solr/spelling/PossibilityIterator.java
+++ b/solr/core/src/java/org/apache/solr/spelling/PossibilityIterator.java
@@ -360,7 +360,7 @@ public class PossibilityIterator implements
     throw new UnsupportedOperationException();
   }
   
-  public class RankedSpellPossibility {
+  public static class RankedSpellPossibility {
     public List<SpellCheckCorrection> corrections;
     public int rank;
     public int index;
@@ -406,7 +406,7 @@ public class PossibilityIterator implements
     }
   }
   
-  private class StartOffsetComparator implements
+  private static class StartOffsetComparator implements
       Comparator<SpellCheckCorrection> {
     @Override
     public int compare(SpellCheckCorrection o1, SpellCheckCorrection o2) {
@@ -414,7 +414,7 @@ public class PossibilityIterator implements
     }
   }
   
-  private class RankComparator implements Comparator<RankedSpellPossibility> {
+  private static class RankComparator implements Comparator<RankedSpellPossibility> {
     // Rank poorer suggestions ahead of better ones for use with a PriorityQueue
     @Override
     public int compare(RankedSpellPossibility r1, RankedSpellPossibility r2) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/update/UpdateLog.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/update/UpdateLog.java b/solr/core/src/java/org/apache/solr/update/UpdateLog.java
index daa50a9..84a2005 100644
--- a/solr/core/src/java/org/apache/solr/update/UpdateLog.java
+++ b/solr/core/src/java/org/apache/solr/update/UpdateLog.java
@@ -204,7 +204,7 @@ public static final int VERSION_IDX = 1;
     }
   };
 
-  public class DBQ {
+  public static class DBQ {
     public String q;     // the query string
     public long version; // positive version of the DBQ
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/util/RTimer.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/util/RTimer.java b/solr/core/src/java/org/apache/solr/util/RTimer.java
index 7bf075c..1962460 100644
--- a/solr/core/src/java/org/apache/solr/util/RTimer.java
+++ b/solr/core/src/java/org/apache/solr/util/RTimer.java
@@ -41,7 +41,7 @@ public class RTimer {
     double elapsed();
   }
 
-  private class NanoTimeTimerImpl implements TimerImpl {
+  private static class NanoTimeTimerImpl implements TimerImpl {
     private long start;
     public void start() {
       start = System.nanoTime();

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/java/org/apache/solr/util/SimplePostTool.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/util/SimplePostTool.java b/solr/core/src/java/org/apache/solr/util/SimplePostTool.java
index a8ef372..e642089 100644
--- a/solr/core/src/java/org/apache/solr/util/SimplePostTool.java
+++ b/solr/core/src/java/org/apache/solr/util/SimplePostTool.java
@@ -1065,7 +1065,7 @@ public class SimplePostTool {
   /**
    * Inner class to filter files based on glob wildcards
    */
-  class GlobFileFilter implements FileFilter
+  static class GlobFileFilter implements FileFilter
   {
     private String _pattern;
     private Pattern p;
@@ -1258,7 +1258,7 @@ public class SimplePostTool {
   /**
    * Utility class to hold the result form a page fetch
    */
-  public class PageFetcherResult {
+  public static class PageFetcherResult {
     int httpStatus = 200;
     String contentType = "text/html";
     URL redirectUrl = null;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/cloud/BaseCdcrDistributedZkTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/BaseCdcrDistributedZkTest.java b/solr/core/src/test/org/apache/solr/cloud/BaseCdcrDistributedZkTest.java
index 35cc444..8a88959 100644
--- a/solr/core/src/test/org/apache/solr/cloud/BaseCdcrDistributedZkTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/BaseCdcrDistributedZkTest.java
@@ -816,7 +816,7 @@ public class BaseCdcrDistributedZkTest extends AbstractDistribZkTestBase {
     return info;
   }
 
-  protected class CollectionInfo {
+  protected static class CollectionInfo {
 
     List<CoreInfo> coreInfos = new ArrayList<>();
 
@@ -869,7 +869,7 @@ public class BaseCdcrDistributedZkTest extends AbstractDistribZkTestBase {
       this.coreInfos.add(info);
     }
 
-    public class CoreInfo {
+    public static class CoreInfo {
       String collectionName;
       String shard;
       boolean isLeader;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/cloud/ChaosMonkeyNothingIsSafeTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/ChaosMonkeyNothingIsSafeTest.java b/solr/core/src/test/org/apache/solr/cloud/ChaosMonkeyNothingIsSafeTest.java
index 628884c..ffc5262 100644
--- a/solr/core/src/test/org/apache/solr/cloud/ChaosMonkeyNothingIsSafeTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/ChaosMonkeyNothingIsSafeTest.java
@@ -400,8 +400,8 @@ public class ChaosMonkeyNothingIsSafeTest extends AbstractFullDistribZkTestBase
     SolrInputDocument doc = getDoc(fields);
     indexDoc(doc);
   }
-  
-  class ErrorLoggingConcurrentUpdateSolrClient extends ConcurrentUpdateSolrClient {
+
+  static class ErrorLoggingConcurrentUpdateSolrClient extends ConcurrentUpdateSolrClient {
     public ErrorLoggingConcurrentUpdateSolrClient(String serverUrl, HttpClient httpClient, int queueSize, int threadCount) {
       super(serverUrl, httpClient, queueSize, threadCount, null, false);
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/cloud/ConnectionManagerTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/ConnectionManagerTest.java b/solr/core/src/test/org/apache/solr/cloud/ConnectionManagerTest.java
index 17d4c54..90d9cc1 100644
--- a/solr/core/src/test/org/apache/solr/cloud/ConnectionManagerTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/ConnectionManagerTest.java
@@ -153,7 +153,7 @@ public class ConnectionManagerTest extends SolrTestCaseJ4 {
     }
   }
   
-  private class MockZkClientConnectionStrategy extends DefaultConnectionStrategy {
+  private static class MockZkClientConnectionStrategy extends DefaultConnectionStrategy {
     int called = 0;
     boolean exceptionThrown = false;
     

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/cloud/DistributedQueueTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/DistributedQueueTest.java b/solr/core/src/test/org/apache/solr/cloud/DistributedQueueTest.java
index d1192a1..b6754c7 100644
--- a/solr/core/src/test/org/apache/solr/cloud/DistributedQueueTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/DistributedQueueTest.java
@@ -202,7 +202,7 @@ public class DistributedQueueTest extends SolrTestCaseJ4 {
     return new DistributedQueue(zkClient, setupNewDistributedQueueZNode(dqZNode));
   }
 
-  private class QueueChangerThread extends Thread {
+  private static class QueueChangerThread extends Thread {
 
     DistributedQueue dq;
     long waitBeforeOfferMs;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/cloud/LeaderElectionTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/LeaderElectionTest.java b/solr/core/src/test/org/apache/solr/cloud/LeaderElectionTest.java
index 2582872..cab5ee3 100644
--- a/solr/core/src/test/org/apache/solr/cloud/LeaderElectionTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/LeaderElectionTest.java
@@ -83,8 +83,8 @@ public class LeaderElectionTest extends SolrTestCaseJ4 {
     zkClient.makePath("/collections/collection1", true);
     zkClient.makePath("/collections/collection2", true);
   }
-  
-  class TestLeaderElectionContext extends ShardLeaderElectionContextBase {
+
+  static class TestLeaderElectionContext extends ShardLeaderElectionContextBase {
     private long runLeaderDelay = 0;
 
     public TestLeaderElectionContext(LeaderElector leaderElector,

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/cloud/OverriddenZkACLAndCredentialsProvidersTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/OverriddenZkACLAndCredentialsProvidersTest.java b/solr/core/src/test/org/apache/solr/cloud/OverriddenZkACLAndCredentialsProvidersTest.java
index 56c0df9..f4cbc77 100644
--- a/solr/core/src/test/org/apache/solr/cloud/OverriddenZkACLAndCredentialsProvidersTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/OverriddenZkACLAndCredentialsProvidersTest.java
@@ -214,7 +214,7 @@ public class OverriddenZkACLAndCredentialsProvidersTest extends SolrTestCaseJ4 {
     }
   }
   
-  private class SolrZkClientFactoryUsingCompletelyNewProviders {
+  private static class SolrZkClientFactoryUsingCompletelyNewProviders {
     
     final String digestUsername;
     final String digestPassword;
@@ -274,7 +274,7 @@ public class OverriddenZkACLAndCredentialsProvidersTest extends SolrTestCaseJ4 {
     
   }
   
-  private class SolrZkClientUsingVMParamsProvidersButWithDifferentVMParamsNames extends SolrZkClient {
+  private static class SolrZkClientUsingVMParamsProvidersButWithDifferentVMParamsNames extends SolrZkClient {
     
     public SolrZkClientUsingVMParamsProvidersButWithDifferentVMParamsNames(String zkServerAddress, int zkClientTimeout) {
       super(zkServerAddress, zkClientTimeout);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/cloud/OverseerCollectionConfigSetProcessorTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/OverseerCollectionConfigSetProcessorTest.java b/solr/core/src/test/org/apache/solr/cloud/OverseerCollectionConfigSetProcessorTest.java
index 635292a..48ac91f 100644
--- a/solr/core/src/test/org/apache/solr/cloud/OverseerCollectionConfigSetProcessorTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/OverseerCollectionConfigSetProcessorTest.java
@@ -78,7 +78,7 @@ public class OverseerCollectionConfigSetProcessorTest extends SolrTestCaseJ4 {
   private Thread thread;
   private Queue<QueueEvent> queue = new ArrayBlockingQueue<>(10);
 
-  private class OverseerCollectionConfigSetProcessorToBeTested extends
+  private static class OverseerCollectionConfigSetProcessorToBeTested extends
       OverseerCollectionConfigSetProcessor {
     
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/cloud/ZkSolrClientTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/ZkSolrClientTest.java b/solr/core/src/test/org/apache/solr/cloud/ZkSolrClientTest.java
index faa2ba7..b3a3d7e 100644
--- a/solr/core/src/test/org/apache/solr/cloud/ZkSolrClientTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/ZkSolrClientTest.java
@@ -40,7 +40,7 @@ public class ZkSolrClientTest extends AbstractSolrTestCase {
     initCore("solrconfig.xml", "schema.xml");
   }
 
-  class ZkConnection implements AutoCloseable {
+  static class ZkConnection implements AutoCloseable {
 
     private ZkTestServer server = null;
     private SolrZkClient zkClient = null;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/core/CachingDirectoryFactoryTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/core/CachingDirectoryFactoryTest.java b/solr/core/src/test/org/apache/solr/core/CachingDirectoryFactoryTest.java
index 7a7fb9c..8714054 100644
--- a/solr/core/src/test/org/apache/solr/core/CachingDirectoryFactoryTest.java
+++ b/solr/core/src/test/org/apache/solr/core/CachingDirectoryFactoryTest.java
@@ -41,7 +41,7 @@ public class CachingDirectoryFactoryTest extends SolrTestCaseJ4 {
   private Map<String,Tracker> dirs = new HashMap<>();
   private volatile boolean stop = false;
   
-  private class Tracker {
+  private static class Tracker {
     String path;
     AtomicInteger refCnt = new AtomicInteger(0);
     Directory dir;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/handler/AnalysisRequestHandlerTestBase.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/handler/AnalysisRequestHandlerTestBase.java b/solr/core/src/test/org/apache/solr/handler/AnalysisRequestHandlerTestBase.java
index d5f8492..2b52720 100644
--- a/solr/core/src/test/org/apache/solr/handler/AnalysisRequestHandlerTestBase.java
+++ b/solr/core/src/test/org/apache/solr/handler/AnalysisRequestHandlerTestBase.java
@@ -49,7 +49,7 @@ public abstract class AnalysisRequestHandlerTestBase extends SolrTestCaseJ4 {
 
   //================================================= Inner Classes ==================================================
 
-  protected class TokenInfo {
+  protected static class TokenInfo {
 
     private String text;
     private String rawText;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/handler/PingRequestHandlerTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/handler/PingRequestHandlerTest.java b/solr/core/src/test/org/apache/solr/handler/PingRequestHandlerTest.java
index 96a01c3..b9ab2c1 100644
--- a/solr/core/src/test/org/apache/solr/handler/PingRequestHandlerTest.java
+++ b/solr/core/src/test/org/apache/solr/handler/PingRequestHandlerTest.java
@@ -231,7 +231,7 @@ public class PingRequestHandlerTest extends SolrTestCaseJ4 {
     return rsp;
   }
 
-  class SolrPingWithDistrib extends SolrPing {
+  static class SolrPingWithDistrib extends SolrPing {
     public SolrPing setDistrib(boolean distrib) {   
       getParams().add("distrib", distrib ? "true" : "false");
       return this;    

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/handler/XmlUpdateRequestHandlerTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/handler/XmlUpdateRequestHandlerTest.java b/solr/core/src/test/org/apache/solr/handler/XmlUpdateRequestHandlerTest.java
index 6d46722..961bb25 100644
--- a/solr/core/src/test/org/apache/solr/handler/XmlUpdateRequestHandlerTest.java
+++ b/solr/core/src/test/org/apache/solr/handler/XmlUpdateRequestHandlerTest.java
@@ -194,7 +194,7 @@ public class XmlUpdateRequestHandlerTest extends SolrTestCaseJ4 {
       p.assertNoCommandsPending();
     }
 
-    private class MockUpdateRequestProcessor extends UpdateRequestProcessor {
+    private static class MockUpdateRequestProcessor extends UpdateRequestProcessor {
 
       private Queue<DeleteUpdateCommand> deleteCommands = new LinkedList<>();
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/handler/admin/CoreMergeIndexesAdminHandlerTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/handler/admin/CoreMergeIndexesAdminHandlerTest.java b/solr/core/src/test/org/apache/solr/handler/admin/CoreMergeIndexesAdminHandlerTest.java
index d026ecd..890ef4a 100644
--- a/solr/core/src/test/org/apache/solr/handler/admin/CoreMergeIndexesAdminHandlerTest.java
+++ b/solr/core/src/test/org/apache/solr/handler/admin/CoreMergeIndexesAdminHandlerTest.java
@@ -50,7 +50,7 @@ public class CoreMergeIndexesAdminHandlerTest extends SolrTestCaseJ4 {
 
   private static String FAILING_MSG = "Creating a directory using FailingDirectoryFactoryException always fails";
   public static class FailingDirectoryFactory extends MockFSDirectoryFactory {
-    public class FailingDirectoryFactoryException extends RuntimeException {
+    public static class FailingDirectoryFactoryException extends RuntimeException {
       public FailingDirectoryFactoryException() {
         super(FAILING_MSG);
       }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/internal/csv/CSVParserTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/internal/csv/CSVParserTest.java b/solr/core/src/test/org/apache/solr/internal/csv/CSVParserTest.java
index 0688c52..ba604f8 100644
--- a/solr/core/src/test/org/apache/solr/internal/csv/CSVParserTest.java
+++ b/solr/core/src/test/org/apache/solr/internal/csv/CSVParserTest.java
@@ -37,7 +37,7 @@ public class CSVParserTest extends TestCase {
   /**
    * TestCSVParser.
    */
-  class TestCSVParser extends CSVParser {
+  static class TestCSVParser extends CSVParser {
     /**
      * Test parser to investigate the type of the internal Token.
      * @param in a Reader

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/metrics/reporters/SolrGraphiteReporterTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/metrics/reporters/SolrGraphiteReporterTest.java b/solr/core/src/test/org/apache/solr/metrics/reporters/SolrGraphiteReporterTest.java
index e58c9dd..f45b193 100644
--- a/solr/core/src/test/org/apache/solr/metrics/reporters/SolrGraphiteReporterTest.java
+++ b/solr/core/src/test/org/apache/solr/metrics/reporters/SolrGraphiteReporterTest.java
@@ -78,7 +78,7 @@ public class SolrGraphiteReporterTest extends SolrTestCaseJ4 {
     }
   }
 
-  private class MockGraphite extends Thread {
+  private static class MockGraphite extends Thread {
     private List<String> lines = new ArrayList<>();
     private ServerSocket server = null;
     private int port;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/response/TestGraphMLResponseWriter.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/response/TestGraphMLResponseWriter.java b/solr/core/src/test/org/apache/solr/response/TestGraphMLResponseWriter.java
index e974b42..72af04b 100644
--- a/solr/core/src/test/org/apache/solr/response/TestGraphMLResponseWriter.java
+++ b/solr/core/src/test/org/apache/solr/response/TestGraphMLResponseWriter.java
@@ -84,7 +84,7 @@ public class TestGraphMLResponseWriter extends SolrTestCaseJ4 {
 
   }
 
-  private class TestStream extends TupleStream {
+  private static class TestStream extends TupleStream {
 
     private Iterator<Tuple> tuples;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/rest/TestManagedResource.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/rest/TestManagedResource.java b/solr/core/src/test/org/apache/solr/rest/TestManagedResource.java
index cce2109..c06abf0 100644
--- a/solr/core/src/test/org/apache/solr/rest/TestManagedResource.java
+++ b/solr/core/src/test/org/apache/solr/rest/TestManagedResource.java
@@ -49,7 +49,7 @@ public class TestManagedResource extends SolrTestCaseJ4 {
    * Mock class that acts like an analysis component that depends on
    * data managed by a ManagedResource
    */
-  private class MockAnalysisComponent implements ManagedResourceObserver {
+  private static class MockAnalysisComponent implements ManagedResourceObserver {
     
     private boolean wasNotified = false;
 
@@ -121,7 +121,7 @@ public class TestManagedResource extends SolrTestCaseJ4 {
   /**
    * Implements a Java serialization based storage format.
    */
-  private class SerializableStorage extends ManagedResourceStorage {
+  private static class SerializableStorage extends ManagedResourceStorage {
     
     SerializableStorage(StorageIO storageIO, SolrResourceLoader loader) {
       super(storageIO, loader);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/rest/TestRestManager.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/rest/TestRestManager.java b/solr/core/src/test/org/apache/solr/rest/TestRestManager.java
index ab2c45b..cc6c58a 100644
--- a/solr/core/src/test/org/apache/solr/rest/TestRestManager.java
+++ b/solr/core/src/test/org/apache/solr/rest/TestRestManager.java
@@ -62,7 +62,7 @@ public class TestRestManager extends SolrRestletTestBase {
     
   }
   
-  private class MockAnalysisComponent implements ManagedResourceObserver {
+  private static class MockAnalysisComponent implements ManagedResourceObserver {
 
     @Override
     public void onManagedResourceInitialized(NamedList<?> args, ManagedResource res)

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/schema/TestCloudManagedSchemaConcurrent.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/schema/TestCloudManagedSchemaConcurrent.java b/solr/core/src/test/org/apache/solr/schema/TestCloudManagedSchemaConcurrent.java
index e724da9..e6e4da1 100644
--- a/solr/core/src/test/org/apache/solr/schema/TestCloudManagedSchemaConcurrent.java
+++ b/solr/core/src/test/org/apache/solr/schema/TestCloudManagedSchemaConcurrent.java
@@ -248,7 +248,7 @@ public class TestCloudManagedSchemaConcurrent extends AbstractFullDistribZkTestB
     schemaLockTest();
   }
   
-  private class Info {
+  private static class Info {
     int numAddFieldPuts = 0;
     int numAddFieldPosts = 0;
     int numAddDynamicFieldPuts = 0;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/search/AnalyticsTestQParserPlugin.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/search/AnalyticsTestQParserPlugin.java b/solr/core/src/test/org/apache/solr/search/AnalyticsTestQParserPlugin.java
index 392fb82..158df17 100644
--- a/solr/core/src/test/org/apache/solr/search/AnalyticsTestQParserPlugin.java
+++ b/solr/core/src/test/org/apache/solr/search/AnalyticsTestQParserPlugin.java
@@ -42,7 +42,7 @@ public class AnalyticsTestQParserPlugin extends QParserPlugin {
     return new TestAnalyticsQueryParser(query, localParams, params, req);
   }
 
-  class TestAnalyticsQueryParser extends QParser {
+  static class TestAnalyticsQueryParser extends QParser {
 
     public TestAnalyticsQueryParser(String query, SolrParams localParams, SolrParams params, SolrQueryRequest req) {
       super(query, localParams, params, req);
@@ -58,7 +58,7 @@ public class AnalyticsTestQParserPlugin extends QParserPlugin {
     }
   }
 
-  class TestAnalyticsQuery extends AnalyticsQuery {
+  static class TestAnalyticsQuery extends AnalyticsQuery {
 
     private int base;
 
@@ -72,7 +72,7 @@ public class AnalyticsTestQParserPlugin extends QParserPlugin {
     }
   }
 
-  class TestAnalyticsCollector extends DelegatingCollector {
+  static class TestAnalyticsCollector extends DelegatingCollector {
     ResponseBuilder rb;
     int count;
     int base;
@@ -97,7 +97,7 @@ public class AnalyticsTestQParserPlugin extends QParserPlugin {
     }
   }
 
-  class TestAnalyticsMergeStrategy implements MergeStrategy {
+  static class TestAnalyticsMergeStrategy implements MergeStrategy {
 
     public boolean mergesIds() {
       return false;
@@ -130,7 +130,7 @@ public class AnalyticsTestQParserPlugin extends QParserPlugin {
     }
   }
 
-  class TestIterative extends IterativeMergeStrategy  {
+  static class TestIterative extends IterativeMergeStrategy  {
 
     public void process(ResponseBuilder rb, ShardRequest sreq) throws Exception {
       int count = 0;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/search/TestExtendedDismaxParser.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/search/TestExtendedDismaxParser.java b/solr/core/src/test/org/apache/solr/search/TestExtendedDismaxParser.java
index 27bf40f..a887fed 100644
--- a/solr/core/src/test/org/apache/solr/search/TestExtendedDismaxParser.java
+++ b/solr/core/src/test/org/apache/solr/search/TestExtendedDismaxParser.java
@@ -1830,7 +1830,7 @@ public class TestExtendedDismaxParser extends SolrTestCaseJ4 {
     return false;
   }
 
-  class MultilanguageQueryParser extends ExtendedDismaxQParser {
+  static class MultilanguageQueryParser extends ExtendedDismaxQParser {
 
     public MultilanguageQueryParser(String qstr, SolrParams localParams,
         SolrParams params, SolrQueryRequest req) {
@@ -1857,10 +1857,10 @@ public class TestExtendedDismaxParser extends SolrTestCaseJ4 {
     }
     
   }
-  
-  
-  
-  class FuzzyDismaxQParser extends ExtendedDismaxQParser {
+
+
+
+  static class FuzzyDismaxQParser extends ExtendedDismaxQParser {
 
     public FuzzyDismaxQParser(String qstr, SolrParams localParams,
         SolrParams params, SolrQueryRequest req) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/search/TestFiltering.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/search/TestFiltering.java b/solr/core/src/test/org/apache/solr/search/TestFiltering.java
index 9f9a51a..c718283 100644
--- a/solr/core/src/test/org/apache/solr/search/TestFiltering.java
+++ b/solr/core/src/test/org/apache/solr/search/TestFiltering.java
@@ -174,7 +174,7 @@ public class TestFiltering extends SolrTestCaseJ4 {
   }
 
 
-  class Model {
+  static class Model {
     int indexSize;
     FixedBitSet answer;
     FixedBitSet multiSelect;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/search/TestRankQueryPlugin.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/search/TestRankQueryPlugin.java b/solr/core/src/test/org/apache/solr/search/TestRankQueryPlugin.java
index b42861a..a526621 100644
--- a/solr/core/src/test/org/apache/solr/search/TestRankQueryPlugin.java
+++ b/solr/core/src/test/org/apache/solr/search/TestRankQueryPlugin.java
@@ -75,7 +75,7 @@ public class TestRankQueryPlugin extends QParserPlugin {
     return new TestRankQueryParser(query, localParams, params, req);
   }
 
-  class TestRankQueryParser extends QParser {
+  static class TestRankQueryParser extends QParser {
 
     public TestRankQueryParser(String query, SolrParams localParams, SolrParams params, SolrQueryRequest req) {
       super(query, localParams, params, req);
@@ -89,7 +89,7 @@ public class TestRankQueryPlugin extends QParserPlugin {
     }
   }
 
-  class TestRankQuery extends RankQuery {
+  static class TestRankQuery extends RankQuery {
 
     private int mergeStrategy;
     private int collector;
@@ -143,7 +143,7 @@ public class TestRankQueryPlugin extends QParserPlugin {
     }
   }
 
-  class TestMergeStrategy implements MergeStrategy {
+  static class TestMergeStrategy implements MergeStrategy {
 
     public int getCost() {
       return 1;
@@ -314,7 +314,7 @@ public class TestRankQueryPlugin extends QParserPlugin {
     }
   }
 
-  class TestMergeStrategy1 implements MergeStrategy {
+  static class TestMergeStrategy1 implements MergeStrategy {
 
     public int getCost() {
       return 1;
@@ -435,7 +435,7 @@ public class TestRankQueryPlugin extends QParserPlugin {
       }
     }
 
-    private class FakeScorer extends Scorer {
+    private static class FakeScorer extends Scorer {
 
       final int docid;
       final float score;
@@ -674,7 +674,7 @@ public class TestRankQueryPlugin extends QParserPlugin {
   }
 
 
-  class TestCollector extends TopDocsCollector {
+  static class TestCollector extends TopDocsCollector {
 
     private List<ScoreDoc> list = new ArrayList();
 
@@ -743,7 +743,7 @@ public class TestRankQueryPlugin extends QParserPlugin {
     }
   }
 
-  class TestCollector1 extends TopDocsCollector {
+  static class TestCollector1 extends TopDocsCollector {
 
     private List<ScoreDoc> list = new ArrayList();
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/spelling/ConjunctionSolrSpellCheckerTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/spelling/ConjunctionSolrSpellCheckerTest.java b/solr/core/src/test/org/apache/solr/spelling/ConjunctionSolrSpellCheckerTest.java
index 2a7daa9..31f20fb 100644
--- a/solr/core/src/test/org/apache/solr/spelling/ConjunctionSolrSpellCheckerTest.java
+++ b/solr/core/src/test/org/apache/solr/spelling/ConjunctionSolrSpellCheckerTest.java
@@ -44,8 +44,8 @@ public class ConjunctionSolrSpellCheckerTest extends LuceneTestCase {
       // correct behavior
     }
   }
-  
-  class MockSolrSpellChecker extends SolrSpellChecker {
+
+  static class MockSolrSpellChecker extends SolrSpellChecker {
     
     final StringDistance sd;
     

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/spelling/IndexBasedSpellCheckerTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/spelling/IndexBasedSpellCheckerTest.java b/solr/core/src/test/org/apache/solr/spelling/IndexBasedSpellCheckerTest.java
index 75de4db..b221044 100644
--- a/solr/core/src/test/org/apache/solr/spelling/IndexBasedSpellCheckerTest.java
+++ b/solr/core/src/test/org/apache/solr/spelling/IndexBasedSpellCheckerTest.java
@@ -230,7 +230,7 @@ public class IndexBasedSpellCheckerTest extends SolrTestCaseJ4 {
     }
   }
 
-  private class TestSpellChecker extends IndexBasedSpellChecker{
+  private static class TestSpellChecker extends IndexBasedSpellChecker{
     @Override
     public SpellChecker getSpellChecker(){
       return spellChecker;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/store/blockcache/BlockDirectoryTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/store/blockcache/BlockDirectoryTest.java b/solr/core/src/test/org/apache/solr/store/blockcache/BlockDirectoryTest.java
index 4272c24..99f7ce6 100644
--- a/solr/core/src/test/org/apache/solr/store/blockcache/BlockDirectoryTest.java
+++ b/solr/core/src/test/org/apache/solr/store/blockcache/BlockDirectoryTest.java
@@ -37,7 +37,7 @@ import org.junit.Test;
 
 public class BlockDirectoryTest extends SolrTestCaseJ4 {
 
-  private class MapperCache implements Cache {
+  private static class MapperCache implements Cache {
     public Map<String, byte[]> map = Caffeine.newBuilder()
         .maximumSize(8)
         .<String, byte[]>build()

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/util/SimplePostToolTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/util/SimplePostToolTest.java b/solr/core/src/test/org/apache/solr/util/SimplePostToolTest.java
index 7f70024..c9f8fc5 100644
--- a/solr/core/src/test/org/apache/solr/util/SimplePostToolTest.java
+++ b/solr/core/src/test/org/apache/solr/util/SimplePostToolTest.java
@@ -225,7 +225,7 @@ public class SimplePostToolTest extends SolrTestCaseJ4 {
     
     @Override
     public PageFetcherResult readPageFromUrl(URL u) {
-      PageFetcherResult res = (new SimplePostTool()).new PageFetcherResult();
+      PageFetcherResult res = new PageFetcherResult();
       if (isDisallowedByRobots(u)) {
         res.httpStatus = 403;
         return res;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/util/SolrPluginUtilsTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/util/SolrPluginUtilsTest.java b/solr/core/src/test/org/apache/solr/util/SolrPluginUtilsTest.java
index e41484f..af85ad6 100644
--- a/solr/core/src/test/org/apache/solr/util/SolrPluginUtilsTest.java
+++ b/solr/core/src/test/org/apache/solr/util/SolrPluginUtilsTest.java
@@ -400,7 +400,7 @@ public class SolrPluginUtilsTest extends SolrTestCaseJ4 {
     assertEquals(3, q.build().getMinimumNumberShouldMatch());
   }
 
-  private class InvokeSettersTestClass {
+  private static class InvokeSettersTestClass {
     private float aFloat = random().nextFloat();
     public float getAFloat() {
       return aFloat;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/core/src/test/org/apache/solr/util/TestSolrCLIRunExample.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/util/TestSolrCLIRunExample.java b/solr/core/src/test/org/apache/solr/util/TestSolrCLIRunExample.java
index 28a58ff..7980560 100644
--- a/solr/core/src/test/org/apache/solr/util/TestSolrCLIRunExample.java
+++ b/solr/core/src/test/org/apache/solr/util/TestSolrCLIRunExample.java
@@ -72,7 +72,7 @@ public class TestSolrCLIRunExample extends SolrTestCaseJ4 {
    * Overrides the call to exec bin/solr to start Solr nodes to start them using the Solr test-framework
    * instead of the script, since the script depends on a full build.
    */
-  private class RunExampleExecutor extends DefaultExecutor implements Closeable {
+  private static class RunExampleExecutor extends DefaultExecutor implements Closeable {
 
     private PrintStream stdout;
     private List<org.apache.commons.exec.CommandLine> commandsExecuted = new ArrayList<>();

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClient.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClient.java b/solr/solrj/src/java/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClient.java
index 4eac2a5..fa93503 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClient.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClient.java
@@ -460,7 +460,7 @@ public class ConcurrentUpdateSolrClient extends SolrClient {
   /**
    * Class representing an UpdateRequest and an optional collection.
    */
-  class Update {
+  static class Update {
     UpdateRequest request;
     String collection;
     /**

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/client/solrj/io/ModelCache.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/io/ModelCache.java b/solr/solrj/src/java/org/apache/solr/client/solrj/io/ModelCache.java
index 4676594..1d7e46f 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/io/ModelCache.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/io/ModelCache.java
@@ -110,7 +110,7 @@ public class ModelCache {
     }
   }
 
-  private class Model {
+  private static class Model {
     private Tuple tuple;
     private long lastChecked;
 
@@ -128,7 +128,7 @@ public class ModelCache {
     }
   }
 
-  private class LRU extends LinkedHashMap<String, Model> {
+  private static class LRU extends LinkedHashMap<String, Model> {
 
     private int maxSize;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/GatherNodesStream.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/GatherNodesStream.java b/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/GatherNodesStream.java
index 8059677..bbd7669 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/GatherNodesStream.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/GatherNodesStream.java
@@ -624,7 +624,7 @@ public class GatherNodesStream extends TupleStream implements Expressible {
     return null;
   }
 
-  class NodeStream extends TupleStream {
+  static class NodeStream extends TupleStream {
 
     private List<String> ids;
     private Iterator<String> it;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/ShortestPathStream.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/ShortestPathStream.java b/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/ShortestPathStream.java
index aa546ae..5075330 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/ShortestPathStream.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/io/graph/ShortestPathStream.java
@@ -492,7 +492,7 @@ public class ShortestPathStream extends TupleStream implements Expressible {
     }
   }
 
-  private class Edge {
+  private static class Edge {
 
     private String from;
     private String to;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/client/solrj/io/ops/GroupOperation.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/io/ops/GroupOperation.java b/solr/solrj/src/java/org/apache/solr/client/solrj/io/ops/GroupOperation.java
index 4a28cc1..a2bd8c9 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/io/ops/GroupOperation.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/io/ops/GroupOperation.java
@@ -133,7 +133,7 @@ public class GroupOperation implements ReduceOperation {
     }
   }
 
-  class ReverseComp implements Comparator<Tuple>, Serializable {
+  static class ReverseComp implements Comparator<Tuple>, Serializable {
     private StreamComparator comp;
 
     public ReverseComp(StreamComparator comp) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/RankStream.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/RankStream.java b/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/RankStream.java
index a9fb1af..e301081 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/RankStream.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/RankStream.java
@@ -213,7 +213,7 @@ public class RankStream extends TupleStream implements Expressible {
     return 0;
   }
 
-  class ReverseComp implements Comparator<Tuple>, Serializable {
+  static class ReverseComp implements Comparator<Tuple>, Serializable {
 
     private static final long serialVersionUID = 1L;
     private StreamComparator comp;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/SignificantTermsStream.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/SignificantTermsStream.java b/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/SignificantTermsStream.java
index b4decd5..45cd272 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/SignificantTermsStream.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/SignificantTermsStream.java
@@ -339,7 +339,7 @@ public class SignificantTermsStream extends TupleStream implements Expressible{
     }
   }
 
-  private class ScoreComp implements Comparator<Map> {
+  private static class ScoreComp implements Comparator<Map> {
     public int compare(Map a, Map b) {
       Float scorea = (Float)a.get("score");
       Float scoreb = (Float)b.get("score");

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/TextLogitStream.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/TextLogitStream.java b/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/TextLogitStream.java
index 5a70ced..a6ba9d9 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/TextLogitStream.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/TextLogitStream.java
@@ -532,7 +532,7 @@ public class TextLogitStream extends TupleStream implements Expressible {
     return buf.toString();
   }
 
-  protected class TermsStream extends TupleStream {
+  protected static class TermsStream extends TupleStream {
 
     private List<String> terms;
     private Iterator<String> it;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/client/solrj/response/SpellCheckResponse.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/response/SpellCheckResponse.java b/solr/solrj/src/java/org/apache/solr/client/solrj/response/SpellCheckResponse.java
index 946225d..89ef351 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/response/SpellCheckResponse.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/response/SpellCheckResponse.java
@@ -211,7 +211,7 @@ public class SpellCheckResponse {
 
   }
 
-  public class Collation {
+  public static class Collation {
     private String collationQueryString;
     private List<Correction> misspellingsAndCorrections = new ArrayList<>();
     private long numberOfHits;
@@ -244,7 +244,7 @@ public class SpellCheckResponse {
 
   }
 
-  public class Correction {
+  public static class Correction {
     private String original;
     private String correction;
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/java/org/apache/solr/common/cloud/ZkStateReader.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/common/cloud/ZkStateReader.java b/solr/solrj/src/java/org/apache/solr/common/cloud/ZkStateReader.java
index 80531cb..7cefbee 100644
--- a/solr/solrj/src/java/org/apache/solr/common/cloud/ZkStateReader.java
+++ b/solr/solrj/src/java/org/apache/solr/common/cloud/ZkStateReader.java
@@ -145,7 +145,7 @@ public class ZkStateReader implements Closeable {
 
   private final ExecutorService notifications = ExecutorUtil.newMDCAwareCachedThreadPool("watches");
 
-  private class CollectionWatch {
+  private static class CollectionWatch {
 
     int coreRefCount = 0;
     Set<CollectionStateWatcher> stateWatchers = ConcurrentHashMap.newKeySet();

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/test/org/apache/solr/client/solrj/TestLBHttpSolrClient.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/test/org/apache/solr/client/solrj/TestLBHttpSolrClient.java b/solr/solrj/src/test/org/apache/solr/client/solrj/TestLBHttpSolrClient.java
index 964ea26..3c1c45f 100644
--- a/solr/solrj/src/test/org/apache/solr/client/solrj/TestLBHttpSolrClient.java
+++ b/solr/solrj/src/test/org/apache/solr/client/solrj/TestLBHttpSolrClient.java
@@ -247,7 +247,7 @@ public class TestLBHttpSolrClient extends SolrTestCaseJ4 {
     }
   }
   
-  private class SolrInstance {
+  private static class SolrInstance {
     String name;
     File homeDir;
     File dataDir;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/test/org/apache/solr/client/solrj/embedded/SolrExampleStreamingTest.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/test/org/apache/solr/client/solrj/embedded/SolrExampleStreamingTest.java b/solr/solrj/src/test/org/apache/solr/client/solrj/embedded/SolrExampleStreamingTest.java
index 093238d..02ed7be 100644
--- a/solr/solrj/src/test/org/apache/solr/client/solrj/embedded/SolrExampleStreamingTest.java
+++ b/solr/solrj/src/test/org/apache/solr/client/solrj/embedded/SolrExampleStreamingTest.java
@@ -104,8 +104,8 @@ public class SolrExampleStreamingTest extends SolrExampleTests {
                    null, failures.get(0));
     }
   }
-  
-  class FailureRecordingConcurrentUpdateSolrClient extends ConcurrentUpdateSolrClient {
+
+  static class FailureRecordingConcurrentUpdateSolrClient extends ConcurrentUpdateSolrClient {
     private final List<Throwable> failures = new ArrayList<>();
     
     public FailureRecordingConcurrentUpdateSolrClient(String serverUrl, int queueSize, int numThreads) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/solrj/src/test/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClientTest.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/test/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClientTest.java b/solr/solrj/src/test/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClientTest.java
index de728bd..24f08d2 100644
--- a/solr/solrj/src/test/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClientTest.java
+++ b/solr/solrj/src/test/org/apache/solr/client/solrj/impl/ConcurrentUpdateSolrClientTest.java
@@ -252,7 +252,7 @@ public class ConcurrentUpdateSolrClientTest extends SolrJettyTestBase {
 
   }
 
-  class SendDocsRunnable implements Runnable {
+  static class SendDocsRunnable implements Runnable {
     
     private String id;
     private int numDocs;
@@ -289,8 +289,8 @@ public class ConcurrentUpdateSolrClientTest extends SolrJettyTestBase {
       }      
     }    
   }
-  
-  class OutcomeCountingConcurrentUpdateSolrClient extends ConcurrentUpdateSolrClient {
+
+  static class OutcomeCountingConcurrentUpdateSolrClient extends ConcurrentUpdateSolrClient {
     private final AtomicInteger successCounter;
     private final AtomicInteger failureCounter;
     private final StringBuilder errors;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53064e46/solr/test-framework/src/java/org/apache/solr/SolrTestCaseJ4.java
----------------------------------------------------------------------
diff --git a/solr/test-framework/src/java/org/apache/solr/SolrTestCaseJ4.java b/solr/test-framework/src/java/org/apache/solr/SolrTestCaseJ4.java
index 04fc3ff..f82ccc6 100644
--- a/solr/test-framework/src/java/org/apache/solr/SolrTestCaseJ4.java
+++ b/solr/test-framework/src/java/org/apache/solr/SolrTestCaseJ4.java
@@ -1627,7 +1627,7 @@ public abstract class SolrTestCaseJ4 extends LuceneTestCase {
     }
   }
 
-  protected class FldType {
+  protected static class FldType {
     public String fname;
     public IVals numValues;
     public Vals vals;