[jira] [Created] (GROOVY-7457) NPE exception on ManagedLinkedList

["paolo di tommaso (JIRA)" <ji...@apache.org>]

paolo di tommaso created GROOVY-7457:
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             Summary: NPE exception on ManagedLinkedList
                 Key: GROOVY-7457
                 URL: https://issues.apache.org/jira/browse/GROOVY-7457
             Project: Groovy
          Issue Type: Bug
          Components: groovy-runtime
    Affects Versions: 2.4.3
         Environment: java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b25)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)
            Reporter: paolo di tommaso
            Priority: Critical


>From time to time I'm getting the following exception. Unfortunately I was unable to replicate it in test case.

{code}
java.lang.NullPointerException: null
	at org.codehaus.groovy.util.ManagedLinkedList$Element.finalizeReference(ManagedLinkedList.java:44) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.util.ReferenceManager$1.removeStallEntries(ReferenceManager.java:83) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.util.ReferenceManager$1.afterReferenceCreation(ReferenceManager.java:91) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.util.ReferenceManager$2.afterReferenceCreation(ReferenceManager.java:108) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.util.ManagedReference.<init>(ManagedReference.java:33) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.util.ManagedReference.<init>(ManagedReference.java:37) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.reflection.ClassInfo$ClassInfoCleanup.<init>(ClassInfo.java:514) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.reflection.ClassInfo.<init>(ClassInfo.java:75) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.reflection.ClassInfo$1.computeValue(ClassInfo.java:62) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.reflection.ClassInfo$1.computeValue(ClassInfo.java:59) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.reflection.v7.GroovyClassValueJava7.computeValue(GroovyClassValueJava7.java:18) ~[groovy-2.4.3.jar:2.4.3]
	at java.lang.ClassValue.getFromHashMap(ClassValue.java:227) ~[na:1.8.0_40]
	at java.lang.ClassValue.getFromBackup(ClassValue.java:209) ~[na:1.8.0_40]
	at java.lang.ClassValue.get(ClassValue.java:115) ~[na:1.8.0_40]
	at org.codehaus.groovy.reflection.ClassInfo.getClassInfo(ClassInfo.java:118) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.getMetaClass(MetaClassRegistryImpl.java:255) ~[groovy-2.4.3.jar:2.4.3]
	at org.codehaus.groovy.runtime.InvokerHelper.getMetaClass(InvokerHelper.java:872) ~[groovy-2.4.3.jar:2.4.3]
	at groovy.lang.GroovyObjectSupport.<init>(GroovyObjectSupport.java:32) ~[groovy-2.4.3.jar:2.4.3]
	at groovy.lang.Closure.<init>(Closure.java:219) ~[groovy-2.4.3.jar:2.4.3]
	at nextflow.processor.TaskRun$_memoizedMethodPriv_getOutputFilesNames_closure10.<init>(TaskRun.groovy) ~[nextflow-0.14.0-SNAPSHOT.jar:na]
	at nextflow.processor.TaskRun.memoizedMethodPriv$getOutputFilesNames(TaskRun.groovy:378) ~[nextflow-0.14.0-SNAPSHOT.jar:na]

{code}



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