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Build: NetBeans IDE Dev (Build 201212170919) VM: OpenJDK Client VM, 20.0-b12, OpenJDK Runtime Environment, 1.6.0_24-b24 OS: Linux Stacktrace: java.lang.NullPointerException at javax.swing.tree.FixedHeightLayoutCache$FHTreeStateNode.adjustRowBy(FixedHeightLayoutCache.java:1009) at javax.swing.tree.FixedHeightLayoutCache$FHTreeStateNode.adjustRowBy(FixedHeightLayoutCache.java:1009) at javax.swing.tree.FixedHeightLayoutCache$FHTreeStateNode.adjustRowBy(FixedHeightLayoutCache.java:1009) at javax.swing.tree.FixedHeightLayoutCache$FHTreeStateNode.adjustRowBy(FixedHeightLayoutCache.java:1009) at javax.swing.tree.FixedHeightLayoutCache$FHTreeStateNode.adjustRowBy(FixedHeightLayoutCache.java:1009) at javax.swing.tree.FixedHeightLayoutCache$FHTreeStateNode.adjustRowBy(FixedHeightLayoutCache.java:1009)
Created attachment 130056 [details] stacktrace
JTree related Swing problem.
Please reopen if you can reproduce with the latest update of Oracle JDK 1.7, thanks.