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I have no idea what it's bound to, but the following exception was thrown: java.lang.AssertionError: Not locked. Use Indent.lock() at org.netbeans.modules.editor.indent.IndentImpl.reindent(IndentImpl.java:130) at org.netbeans.modules.editor.indent.FormatterImpl.indentLine(FormatterImpl.java:75) at org.netbeans.modules.editor.indent.FormatterImpl.indentNewLine(FormatterImpl.java:96) at org.netbeans.editor.BaseKit$SplitLineAction.actionPerformed(BaseKit.java:1177) at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:266) at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1576) at javax.swing.JComponent.processKeyBinding(JComponent.java:2763) at javax.swing.JComponent.processKeyBindings(JComponent.java:2798) at javax.swing.JComponent.processKeyEvent(JComponent.java:2726) at java.awt.Component.processEvent(Component.java:5331) at java.awt.Container.processEvent(Container.java:2010) at java.awt.Component.dispatchEventImpl(Component.java:4021) at java.awt.Container.dispatchEventImpl(Container.java:2068) at java.awt.Component.dispatchEvent(Component.java:3869) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1810) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:672) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:920) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:798) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:636) at java.awt.Component.dispatchEventImpl(Component.java:3907) at java.awt.Container.dispatchEventImpl(Container.java:2068) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3869) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
This is duplicate of issue 110647. This issue should be fixed now. Since you didn't attach build number I suppose you're using older build. If you can see this issue in the later build, please reopen. *** This issue has been marked as a duplicate of 110647 ***