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Posted to issues@kylin.apache.org by "Chao Long (JIRA)" <ji...@apache.org> on 2019/02/28 04:01:00 UTC
[jira] [Updated] (KYLIN-3836) Kylin StringUtil.join() may cause NPE
if iterator is empty
[ https://issues.apache.org/jira/browse/KYLIN-3836?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chao Long updated KYLIN-3836:
-----------------------------
Description:
{quote}
public static String join(Iterable<String> parts, String separator) {
StringBuilder buf = new StringBuilder();
Iterator<String> iterator = parts.iterator();
if (iterator == null || (!iterator.hasNext())) {
return null;
}
.....
{quote}
org.apache.kylin.job.exception.ExecuteException: org.apache.kylin.job.exception.ExecuteException: java.lang.NullPointerException
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:183)
at org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:114)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.kylin.job.exception.ExecuteException: java.lang.NullPointerException
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:183)
at org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:71)
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:168)
... 4 more
Caused by: java.lang.NullPointerException
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:191)
at com.google.common.base.Splitter.split(Splitter.java:383)
at org.apache.kylin.common.util.StringUtil.splitAndTrim(StringUtil.java:181)
at org.apache.kylin.source.hive.GarbageCollectionStep.getIntermediateTables(GarbageCollectionStep.java:95)
at org.apache.kylin.source.hive.GarbageCollectionStep.cleanUpIntermediateFlatTable(GarbageCollectionStep.java:62)
at org.apache.kylin.source.hive.GarbageCollectionStep.doWork(GarbageCollectionStep.java:48)
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:168)
... 6 more
was:
org.apache.kylin.job.exception.ExecuteException: org.apache.kylin.job.exception.ExecuteException: java.lang.NullPointerException
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:183)
at org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:114)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.kylin.job.exception.ExecuteException: java.lang.NullPointerException
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:183)
at org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:71)
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:168)
... 4 more
Caused by: java.lang.NullPointerException
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:191)
at com.google.common.base.Splitter.split(Splitter.java:383)
at org.apache.kylin.common.util.StringUtil.splitAndTrim(StringUtil.java:181)
at org.apache.kylin.source.hive.GarbageCollectionStep.getIntermediateTables(GarbageCollectionStep.java:95)
at org.apache.kylin.source.hive.GarbageCollectionStep.cleanUpIntermediateFlatTable(GarbageCollectionStep.java:62)
at org.apache.kylin.source.hive.GarbageCollectionStep.doWork(GarbageCollectionStep.java:48)
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:168)
... 6 more
> Kylin StringUtil.join() may cause NPE if iterator is empty
> ----------------------------------------------------------
>
> Key: KYLIN-3836
> URL: https://issues.apache.org/jira/browse/KYLIN-3836
> Project: Kylin
> Issue Type: Bug
> Reporter: Chao Long
> Assignee: Chao Long
> Priority: Major
> Fix For: v2.6.1
>
>
> {quote}
> public static String join(Iterable<String> parts, String separator) {
> StringBuilder buf = new StringBuilder();
> Iterator<String> iterator = parts.iterator();
> if (iterator == null || (!iterator.hasNext())) {
> return null;
> }
> .....
> {quote}
> org.apache.kylin.job.exception.ExecuteException: org.apache.kylin.job.exception.ExecuteException: java.lang.NullPointerException
> at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:183)
> at org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:114)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: org.apache.kylin.job.exception.ExecuteException: java.lang.NullPointerException
> at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:183)
> at org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:71)
> at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:168)
> ... 4 more
> Caused by: java.lang.NullPointerException
> at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:191)
> at com.google.common.base.Splitter.split(Splitter.java:383)
> at org.apache.kylin.common.util.StringUtil.splitAndTrim(StringUtil.java:181)
> at org.apache.kylin.source.hive.GarbageCollectionStep.getIntermediateTables(GarbageCollectionStep.java:95)
> at org.apache.kylin.source.hive.GarbageCollectionStep.cleanUpIntermediateFlatTable(GarbageCollectionStep.java:62)
> at org.apache.kylin.source.hive.GarbageCollectionStep.doWork(GarbageCollectionStep.java:48)
> at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:168)
> ... 6 more
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