Eclipse 4.12 NPE for debug inline variable codeminings

[gayanper]

java.lang.NullPointerException
at org.eclipse.jdt.experimental.debug.ui.codemining.JavaDebugElementCodeMining.getRGB(JavaDebugElementCodeMining.java:43)
at org.eclipse.debug.ui.codemining.provisional.AbstractDebugVariableCodeMining.updateLabel(AbstractDebugVariableCodeMining.java:74)
at org.eclipse.debug.ui.codemining.provisional.AbstractDebugVariableCodeMining.getLabel(AbstractDebugVariableCodeMining.java:60)
at org.eclipse.jface.internal.text.codemining.CodeMiningLineContentAnnotation.drawAndComputeWidth(CodeMiningLineContentAnnotation.java:123)
at org.eclipse.jface.text.source.inlined.LineContentAnnotation.draw(LineContentAnnotation.java:69)
at org.eclipse.jface.text.source.inlined.InlinedAnnotationDrawingStrategy.drawAsRightOfPreviousCharacter(InlinedAnnotationDrawingStrategy.java:261)
at org.eclipse.jface.text.source.inlined.InlinedAnnotationDrawingStrategy.draw(InlinedAnnotationDrawingStrategy.java:134)
at org.eclipse.jface.text.source.inlined.InlinedAnnotationDrawingStrategy.draw(InlinedAnnotationDrawingStrategy.java:61)
at org.eclipse.jface.text.source.inlined.InlinedAnnotationDrawingStrategy.draw(InlinedAnnotationDrawingStrategy.java:41)
at org.eclipse.jface.text.source.AnnotationPainter.drawDecoration(AnnotationPainter.java:1421)
at org.eclipse.jface.text.source.AnnotationPainter.handleDrawRequest(AnnotationPainter.java:1387)
at org.eclipse.jface.text.source.AnnotationPainter.paintControl(AnnotationPainter.java:1335)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:234)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5874)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1400)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1426)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1409)
at org.eclipse.swt.widgets.Control.gtk_draw(Control.java:3906)
at org.eclipse.swt.widgets.Composite.gtk_draw(Composite.java:455)
at org.eclipse.swt.widgets.Canvas.gtk_draw(Canvas.java:181)
at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2212)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:6814)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:6132)
at org.eclipse.swt.internal.gtk.GTK._gtk_main_do_event(Native Method)
at org.eclipse.swt.internal.gtk.GTK.gtk_main_do_event(GTK.java:4166)
at org.eclipse.swt.widgets.Display.eventProc(Display.java:1429)
at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:1585)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4661)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:635)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:559)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:155)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:660)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:597)
at org.eclipse.equinox.launcher.Main.run(Main.java:1468)
at org.eclipse.equinox.launcher.Main.main(Main.java:1441)