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After upgrade to 4.14 I see lot's of NPE in logs. As the result, from time to time line number column disappear. Doesn't matter to editor (JAVA, PHP, CSS). I found similar bug 553319 marked as fixed in 4.14. Example stacktraces: java.lang.NullPointerException at org.eclipse.swt.graphics.Image.internal_new_GC(Image.java:1598) at org.eclipse.swt.graphics.GC.<init>(GC.java:262) at org.eclipse.swt.graphics.GC.<init>(GC.java:223) at org.eclipse.jface.text.source.OverviewRuler.doubleBufferPaint(OverviewRuler.java:682) at org.eclipse.jface.text.source.OverviewRuler.lambda$1(OverviewRuler.java:592) 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:4406) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1512) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1535) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1520) at org.eclipse.swt.widgets.Control.drawWidget(Control.java:1278) at org.eclipse.swt.widgets.Canvas.drawWidget(Canvas.java:176) at org.eclipse.swt.widgets.Widget.drawRect(Widget.java:776) at org.eclipse.swt.widgets.Canvas.drawRect(Canvas.java:170) at org.eclipse.swt.widgets.Display.windowProc(Display.java:6043) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend_bool(Native Method) at org.eclipse.swt.internal.cocoa.NSRunLoop.runMode(NSRunLoop.java:45) at org.eclipse.swt.widgets.Display.sleep(Display.java:4976) at org.eclipse.ui.application.WorkbenchAdvisor.eventLoopIdle(WorkbenchAdvisor.java:360) at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.eventLoopIdle(IDEWorkbenchAdvisor.java:949) at org.eclipse.ui.internal.Workbench$1.eventLoopIdle(Workbench.java:483) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1165) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1049) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:660) 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:154) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150) 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:401) 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:567) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) java.lang.NullPointerException at org.eclipse.swt.graphics.Image.internal_new_GC(Image.java:1598) at org.eclipse.swt.graphics.GC.<init>(GC.java:262) at org.eclipse.swt.graphics.GC.<init>(GC.java:223) at org.eclipse.jface.text.source.LineNumberRulerColumn.doubleBufferPaint(LineNumberRulerColumn.java:693) at org.eclipse.jface.text.source.LineNumberRulerColumn.lambda$2(LineNumberRulerColumn.java:619) 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:4406) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1512) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1535) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1520) at org.eclipse.swt.widgets.Control.drawWidget(Control.java:1278) at org.eclipse.swt.widgets.Canvas.drawWidget(Canvas.java:176) at org.eclipse.swt.widgets.Widget.drawRect(Widget.java:776) at org.eclipse.swt.widgets.Canvas.drawRect(Canvas.java:170) at org.eclipse.swt.widgets.Display.windowProc(Display.java:6043) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend_bool(Native Method) at org.eclipse.swt.internal.cocoa.NSRunLoop.runMode(NSRunLoop.java:45) at org.eclipse.swt.widgets.Display.sleep(Display.java:4976) at org.eclipse.ui.application.WorkbenchAdvisor.eventLoopIdle(WorkbenchAdvisor.java:360) at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.eventLoopIdle(IDEWorkbenchAdvisor.java:949) at org.eclipse.ui.internal.Workbench$1.eventLoopIdle(Workbench.java:483) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1165) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1049) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:660) 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:154) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150) 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:401) 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:567) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) java.lang.NullPointerException at org.eclipse.swt.graphics.Image.internal_new_GC(Image.java:1598) at org.eclipse.swt.graphics.GC.<init>(GC.java:262) at org.eclipse.swt.graphics.GC.<init>(GC.java:223) at org.eclipse.jface.text.source.AnnotationRulerColumn.doubleBufferPaint(AnnotationRulerColumn.java:539) at org.eclipse.jface.text.source.AnnotationRulerColumn.lambda$1(AnnotationRulerColumn.java:274) 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:4406) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1512) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1535) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1520) at org.eclipse.swt.widgets.Control.drawWidget(Control.java:1278) at org.eclipse.swt.widgets.Canvas.drawWidget(Canvas.java:176) at org.eclipse.swt.widgets.Widget.drawRect(Widget.java:776) at org.eclipse.swt.widgets.Canvas.drawRect(Canvas.java:170) at org.eclipse.swt.widgets.Display.windowProc(Display.java:6043) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend_bool(Native Method) at org.eclipse.swt.internal.cocoa.NSRunLoop.runMode(NSRunLoop.java:45) at org.eclipse.swt.widgets.Display.sleep(Display.java:4976) at org.eclipse.ui.application.WorkbenchAdvisor.eventLoopIdle(WorkbenchAdvisor.java:360) at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.eventLoopIdle(IDEWorkbenchAdvisor.java:949) at org.eclipse.ui.internal.Workbench$1.eventLoopIdle(Workbench.java:483) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1165) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1049) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:660) 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:154) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150) 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:401) 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:567) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
NSGraphicsContext context is null. I guess you have multiple monitors?
(In reply to Andrey Loskutov from comment #1) > NSGraphicsContext context is null. I guess you have multiple monitors? Yes, laptop + external since years. Is this problem with Catalina?
(In reply to Dawid Pakula from comment #2) > (In reply to Andrey Loskutov from comment #1) > > NSGraphicsContext context is null. I guess you have multiple monitors? > > Yes, laptop + external since years. Is this problem with Catalina? I believe Sravan just commented on some other bug that we have troubles on new Macs with multiple monitors, just can't find it now.
This is old Mac (2015), only system is updated. This problem was introduced in 4.14 (or maybe previously was hidden). With 4.13 everything was fine.
Though I am not able to reproduce it, there are reports of this problem. Lakshmi is able to reproduce. I will try once again to reproduce this on my setup hopefully this time I will be able to reproduce. My setup has retina macbook and retina external monitor. This problem may reproduce if we have a non-retina external monitor. Probably this may be reason why I am not able to reproduce. I will try to use a non retina monitor now.
*** Bug 559282 has been marked as a duplicate of this bug. ***
*** This bug has been marked as a duplicate of bug 548430 ***
