java.lang.NullPointerException at javax.swing.ScrollPaneLayout.preferredLayoutSize(ScrollPaneLayout.java:495) at java.awt.Container.preferredSize(Container.java:1670) at java.awt.Container.getPreferredSize(Container.java:1655) at javax.swing.JComponent.getPreferredSize(JComponent.java:1646) at org.netbeans.modules.editor.hints.borrowed.ScrollCompletionPane.(ScrollCompletionPane.java:110) at org.netbeans.modules.editor.hints.HintsUI.showPopup(HintsUI.java:277) at org.netbeans.modules.editor.hints.HintsUI.invokeDefaultAction(HintsUI.java:459) at org.netbeans.modules.editor.hints.FixAction.actionPerformed(FixAction.java:64) at org.netbeans.editor.GlyphGutter$GutterMouseListener.mouseClicked(GlyphGutter.java:742) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:270) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:270) at java.awt.Component.processMouseEvent(Component.java:6103) at javax.swing.JComponent.processMouseEvent(JComponent.java:3288) at java.awt.Component.processEvent(Component.java:5865) at java.awt.Container.processEvent(Container.java:2110) at java.awt.Component.dispatchEventImpl(Component.java:4461) at java.awt.Container.dispatchEventImpl(Container.java:2168) at java.awt.Component.dispatchEvent(Component.java:4287) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4466) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4139) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4060) at java.awt.Container.dispatchEventImpl(Container.java:2154) at java.awt.Window.dispatchEventImpl(Window.java:2555) at java.awt.Component.dispatchEvent(Component.java:4287) at java.awt.EventQueue.dispatchEvent(EventQueue.java:605) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:276) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:191) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:186) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:178) at java.awt.EventDispatchThread.run(EventDispatchThread.java:139)