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Sample Netbeans project attached. Product Version = NetBeans IDE 8.0.2 (Build 201411181905) Operating System = Mac OS X version 10.9.5 running on x86_64 Java; VM; Vendor = 1.8.0_20 Runtime = Java HotSpot(TM) 64-Bit Server VM 25.20-b23 INFO [org.netbeans.modules.editor.lib2.typinghooks.TypedBreakInterceptorsManager]: TypedBreakInterceptor crashed in insert(): org.netbeans.modules.xml.text.indent.LineBreakHook@61a0a20d java.lang.NullPointerException at org.netbeans.modules.xml.text.indent.LineBreakHook.insert(LineBreakHook.java:173) [catch] at org.netbeans.modules.editor.lib2.typinghooks.TypedBreakInterceptorsManager$Transaction.textTyped(TypedBreakInterceptorsManager.java:113) at org.netbeans.editor.BaseKit$InsertBreakAction$1.run(BaseKit.java:1341) at org.netbeans.editor.GuardedDocument.runAtomicAsUser(GuardedDocument.java:356) at org.netbeans.editor.BaseKit$InsertBreakAction.actionPerformed(BaseKit.java:1339) at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:339) at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1663) at javax.swing.JComponent.processKeyBinding(JComponent.java:2879) at javax.swing.JComponent.processKeyBindings(JComponent.java:2926) at javax.swing.JComponent.processKeyEvent(JComponent.java:2842) at java.awt.Component.processEvent(Component.java:6302) at java.awt.Container.processEvent(Container.java:2234) at java.awt.Component.dispatchEventImpl(Component.java:4881) at java.awt.Container.dispatchEventImpl(Container.java:2292) at java.awt.Component.dispatchEvent(Component.java:4703) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1954) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:806) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1074) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:945) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:771) at java.awt.Component.dispatchEventImpl(Component.java:4752) at java.awt.Container.dispatchEventImpl(Container.java:2292) at java.awt.Window.dispatchEventImpl(Window.java:2739) at java.awt.Component.dispatchEvent(Component.java:4703) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:746) at java.awt.EventQueue.access$400(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:697) at java.awt.EventQueue$3.run(EventQueue.java:691) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:719) at java.awt.EventQueue$4.run(EventQueue.java:717) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) at java.awt.EventQueue.dispatchEvent(EventQueue.java:716) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) SEVERE [global] java.lang.NullPointerException at org.netbeans.modules.xml.schema.completion.util.CompletionUtil.getDocRoot(CompletionUtil.java:808) at org.netbeans.modules.xml.schema.completion.util.CompletionUtil.canProvideCompletion(CompletionUtil.java:857) at org.netbeans.modules.xml.schema.completion.SchemaBasedCompletionProvider.getAutoQueryTypes(SchemaBasedCompletionProvider.java:80) at org.netbeans.modules.editor.completion.CompletionImpl.insertUpdate(CompletionImpl.java:345) at org.netbeans.lib.editor.util.swing.PriorityDocumentListenerList.insertUpdate(PriorityDocumentListenerList.java:85) at javax.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:201) at org.netbeans.editor.BaseDocument.fireInsertUpdate(BaseDocument.java:1624) at org.netbeans.editor.BaseDocument.handleInsertString(BaseDocument.java:829) at org.netbeans.editor.BaseDocument$FilterBypassImpl.insertString(BaseDocument.java:2497) at javax.swing.text.DocumentFilter.insertString(DocumentFilter.java:100) at org.openide.text.CloneableEditorSupport$DocFilter.insertString(CloneableEditorSupport.java:2366) at org.netbeans.editor.BaseDocument.insertString(BaseDocument.java:755) at org.netbeans.editor.BaseKit$DefaultKeyTypedAction.insertString(BaseKit.java:1221) at org.netbeans.editor.BaseKit$DefaultKeyTypedAction.performTextInsertion(BaseKit.java:1287) at org.netbeans.editor.BaseKit$DefaultKeyTypedAction.access$100(BaseKit.java:1052) at org.netbeans.editor.BaseKit$DefaultKeyTypedAction$2.run(BaseKit.java:1155) at org.netbeans.editor.GuardedDocument.runAtomicAsUser(GuardedDocument.java:356) at org.netbeans.editor.BaseKit$DefaultKeyTypedAction.actionPerformed(BaseKit.java:1131) at org.netbeans.editor.ext.ExtKit$ExtDefaultKeyTypedAction.actionPerformed(ExtKit.java:1024) at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:339) at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1663) at javax.swing.JComponent.processKeyBinding(JComponent.java:2879) at javax.swing.JComponent.processKeyBindings(JComponent.java:2926) at javax.swing.JComponent.processKeyEvent(JComponent.java:2842) at java.awt.Component.processEvent(Component.java:6302) at java.awt.Container.processEvent(Container.java:2234) at java.awt.Component.dispatchEventImpl(Component.java:4881) at java.awt.Container.dispatchEventImpl(Container.java:2292) at java.awt.Component.dispatchEvent(Component.java:4703) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1954) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:806) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1074) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:945) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:771) at java.awt.Component.dispatchEventImpl(Component.java:4752) at java.awt.Container.dispatchEventImpl(Container.java:2292) at java.awt.Window.dispatchEventImpl(Window.java:2739) at java.awt.Component.dispatchEvent(Component.java:4703) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:746) at java.awt.EventQueue.access$400(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:697) at java.awt.EventQueue$3.run(EventQueue.java:691) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:719) at java.awt.EventQueue$4.run(EventQueue.java:717) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) at java.awt.EventQueue.dispatchEvent(EventQueue.java:716) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159) [catch] at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Created attachment 152145 [details] NetBeans project for replicating this bug
Created attachment 152146 [details] Sample file to load into the test application
Compile and run the Netbeans project. Load the XML document (attached to this bug report) and attempt to edit it in the editor. Application should throw Null Pointer right away.
Not a bug, though hard to find the cause: you need to include MIMELookup module and more importantly, Mime Lookup impl over system FS. The modules assume some services provided for XML, and they are in the system - but the module, which interprets their registration is missing.