[GROOVY-7457] NPE exception on ManagedLinkedList

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.4.3
• Fix Version/s: 2.4.5
• Component/s: groovy-runtime
• Labels: usertask
• 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)
• Assignee: Unassigned
• Reporter: paolo di tommaso
• Created: 04/Jun/15 13:32
• Updated: 19/Oct/15 16:05
• Resolved: 15/Oct/15 07:29

Description

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

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]

Issue Links

• is related to: GROOVY-7591 Use of ClassValue causes major memory leak