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NetBeans IDE Dev (Build 070402) 1.6.0_01-ea; Java HotSpot(TM) Client VM 1.6.0_01-ea-b03 Linux version 2.6.18-1.2239_1.fc5.cubbi_suspend2 running on i386 en_US (nb); UTF-8 Create new j2se library project and close it. It is still held in memory through following chain of references: private static final org.netbeans.api.queries.VisibilityQuery org.netbeans.api.queries.VisibilityQuery.INSTANCE-> org.netbeans.api.queries.VisibilityQuery@1e1dd6c-changeSupport-> org.openide.util.ChangeSupport@125a0a6-listeners-> java.util.concurrent.CopyOnWriteArrayList@e68317-array-> [Ljava.lang.Object;@121f10f-[17]-> org.netbeans.spi.java.project.support.ui.PackageViewChildren$NoFoldersDataFilter@38f8d1-this$0-> org.netbeans.spi.java.project.support.ui.PackageViewChildren@176502d-group-> org.netbeans.spi.project.support.ant.SourcesHelper$SourceRoot$Group@1be2cf3-this$1-> org.netbeans.spi.project.support.ant.SourcesHelper$TypedSourceRoot@1464089-this$0-> org.netbeans.spi.project.support.ant.SourcesHelper@1ea9c3d-project-> org.netbeans.spi.project.support.ant.AntProjectHelper@77ed6a-state-> org.netbeans.api.project.ProjectManager$ProjectStateImpl@a8f448-p-> org.netbeans.modules.java.j2seproject.J2SEProject@3a0277
Looks like it just needs a weak listener.
Checking in test/unit/src/org/netbeans/spi/java/project/support/ui/PackageViewTest.java; /shared/data/ccvs/repository/java/project/test/unit/src/org/netbeans/spi/java/project/support/ui/PackageViewTest.java,v <-- PackageViewTest.java new revision: 1.31; previous revision: 1.30 done Checking in nbproject/project.xml; /shared/data/ccvs/repository/java/project/nbproject/project.xml,v <-- project.xml new revision: 1.37; previous revision: 1.36 done Checking in src/org/netbeans/spi/java/project/support/ui/PackageViewChildren.java; /shared/data/ccvs/repository/java/project/src/org/netbeans/spi/java/project/support/ui/PackageViewChildren.java,v <-- PackageViewChildren.java new revision: 1.78; previous revision: 1.77 done