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This bug was originally marked as duplicate of bug 166301, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 7.2 Beta (Build 201205031832) VM: Java HotSpot(TM) 64-Bit Server VM, 23.0-b21, Java(TM) SE Runtime Environment, 1.7.0_04-b20 OS: Linux User Comments: GUEST: I tried to install the JUnit plugin into the NetBeans 7.1beta IDE. The exception occurred when clicking on the checkbox of the JUnit line in the list of available plugins. GUEST: clicking on JUnit in available Plugins Stacktrace: java.lang.IllegalArgumentException: Invalid org.netbeans.modules.junitlib for operation INSTALL at org.netbeans.modules.autoupdate.services.OperationContainerImpl.add(OperationContainerImpl.java:116) at org.netbeans.api.autoupdate.OperationContainer.add(OperationContainer.java:290) at org.netbeans.modules.autoupdate.ui.Unit$Available.setMarked(Unit.java:642) at org.netbeans.modules.autoupdate.ui.AvailableTableModel.setValueAt(AvailableTableModel.java:98) at javax.swing.JTable.setValueAt(JTable.java:2744) at javax.swing.JTable.editingStopped(JTable.java:4726)
Created attachment 120619 [details] stacktrace
*** This bug has been marked as a duplicate of bug 197567 ***