JSONEditor: NPE when working with an array of objects [EBZ#497261] ------------------------------------------------------------------ Key: ERT-383 URL: https://issues.jboss.org/browse/ERT-383 Project: Eclipse Release Train Issue Type: Task Components: WTP Source Editing Reporter: Friendly Jira Robot Assignee: Victor Rubezhny Labels: bzira, wst.json Fix For: Neon.2 (4.6) I have not been able to reproduce this consistently, but here it goes: Create a JSON file with following content: { "thirdaddition": true, "name": "JSONEditorTest2", "secondaddition": 2, "description": "JSONEditorTest description2", "version": "1.0.1", "main": "app.js", "scripts": { "start": "node app.js" }, "array_of_objects": [{"abc": 1234}, {"value": 1234 }]]}}}}}}]}], "value": "test", "anothervalue": "1234" } When adding and removing (invalid) closing brackets, then modifying the value of the second array element (value), I tend to see this exception: java.lang.NullPointerException at org.eclipse.wst.json.core.internal.document.JSONModelParser.changeAttrValue(JSONModelParser.java:89) at org.eclipse.wst.json.core.internal.document.JSONModelParser.changeRegion(JSONModelParser.java:131) at org.eclipse.wst.json.core.internal.document.JSONModelImpl.regionChanged(JSONModelImpl.java:654) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument._fireEvent(BasicStructuredDocument.java:542) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.fireStructuredDocumentEvent(BasicStructuredDocument.java:1180) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.internalReplaceText(BasicStructuredDocument.java:1964) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replaceText(BasicStructuredDocument.java:2423) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replaceText(BasicStructuredDocument.java:2408) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.access$2(JobSafeStructuredDocument.java:1) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument$3.run(JobSafeStructuredDocument.java:141) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.wst.sse.ui.EditorExecutionContext.execute(EditorExecutionContext.java:149) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.replaceText(JobSafeStructuredDocument.java:144) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replace(BasicStructuredDocument.java:2368) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.access$0(JobSafeStructuredDocument.java:1) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument$1.run(JobSafeStructuredDocument.java:103) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.wst.sse.ui.EditorExecutionContext.execute(EditorExecutionContext.java:149) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.replace(JobSafeStructuredDocument.java:106) at org.eclipse.jface.text.projection.ProjectionTextStore.replace(ProjectionTextStore.java:103) at org.eclipse.jface.text.AbstractDocument.replace(AbstractDocument.java:1094) at org.eclipse.jface.text.AbstractDocument.replace(AbstractDocument.java:1119) at org.eclipse.jface.text.projection.ProjectionDocument.replace(ProjectionDocument.java:625) at org.eclipse.jface.text.DefaultDocumentAdapter.replaceTextRange(DefaultDocumentAdapter.java:233) at org.eclipse.swt.custom.StyledText.modifyContent(StyledText.java:7374) at org.eclipse.swt.custom.StyledText.sendKeyEvent(StyledText.java:8225) at org.eclipse.swt.custom.StyledText.doBackspace(StyledText.java:2334) at org.eclipse.swt.custom.StyledText.invokeAction(StyledText.java:7164) at org.eclipse.swt.custom.StyledText.handleKey(StyledText.java:6022) at org.eclipse.swt.custom.StyledText.handleKeyDown(StyledText.java:6049) at org.eclipse.swt.custom.StyledText$7.handleEvent(StyledText.java:5733) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4248) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1501) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1524) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1509) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1538) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1534) at org.eclipse.swt.widgets.Canvas.sendKeyEvent(Canvas.java:515) at org.eclipse.swt.widgets.Control.doCommandBySelector(Control.java:1090) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5817) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method) at org.eclipse.swt.internal.cocoa.NSResponder.interpretKeyEvents(NSResponder.java:68) at org.eclipse.swt.widgets.Composite.keyDown(Composite.java:610) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5727) at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method) at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227) at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2140) at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2402) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5789) at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method) at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5218) at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5367) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method) at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3695) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1121) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1022) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:150) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:687) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:604) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610) at org.eclipse.equinox.launcher.Main.run(Main.java:1519)