Workflow Freeze

tulipliu · December 19, 2018, 1:59am

Hi there,

I have been experiencing workflow freezes on a frequent basis since I upgraded KNIME to 3.7. It seems to occur whenever I run a loop in my workflow, and it happens any time. I have to end KNIME in the Task Manager and restart KNIME. I have included part of the error log as below:

!SESSION 2018-12-19 10:25:52.414 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.8.0_152
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86_64

This is a continuation of log file C:\Users\samadmin\knime-workspace.metadata.bak_5.log
Created Time: 2018-12-19 11:03:45.112

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:45.113
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Control.internal_new_GC(Control.java:1796)
at org.eclipse.swt.graphics.GC.win32_new(GC.java:5296)
at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:1582)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4900)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5191)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2560)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3815)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:45.335
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Display.error(Display.java:1263)
at org.eclipse.swt.widgets.Display.internal_new_GC(Display.java:2708)
at org.eclipse.swt.graphics.Image.getImageDataAtCurrentZoom(Image.java:1707)
at org.eclipse.swt.graphics.Image.(Image.java:360)
at org.knime.workbench.editor2.figures.NodeContainerFigure.makeImageGhostly(NodeContainerFigure.java:466)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setLoopStatus(NodeContainerFigure.java:1426)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setStateFromNC(NodeContainerFigure.java:624)
at org.knime.workbench.editor2.editparts.NodeContainerEditPart$2.run(NodeContainerEditPart.java:418)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:45.610
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Control.internal_new_GC(Control.java:1796)
at org.eclipse.swt.graphics.GC.win32_new(GC.java:5296)
at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:1582)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4900)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5191)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2560)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3815)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:45.905
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Display.error(Display.java:1263)
at org.eclipse.swt.widgets.Display.internal_new_GC(Display.java:2708)
at org.eclipse.swt.graphics.Image.getImageDataAtCurrentZoom(Image.java:1707)
at org.eclipse.swt.graphics.Image.(Image.java:360)
at org.knime.workbench.editor2.figures.NodeContainerFigure.makeImageGhostly(NodeContainerFigure.java:466)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setLoopStatus(NodeContainerFigure.java:1426)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setStateFromNC(NodeContainerFigure.java:624)
at org.knime.workbench.editor2.editparts.NodeContainerEditPart$2.run(NodeContainerEditPart.java:418)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:45.907
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Display.error(Display.java:1263)
at org.eclipse.swt.widgets.Display.internal_new_GC(Display.java:2708)
at org.eclipse.swt.graphics.Image.getImageDataAtCurrentZoom(Image.java:1707)
at org.eclipse.swt.graphics.Image.(Image.java:360)
at org.knime.workbench.editor2.figures.NodeContainerFigure.makeImageGhostly(NodeContainerFigure.java:466)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setLoopStatus(NodeContainerFigure.java:1426)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setStateFromNC(NodeContainerFigure.java:624)
at org.knime.workbench.editor2.editparts.NodeContainerEditPart$2.run(NodeContainerEditPart.java:418)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:45.910
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Control.internal_new_GC(Control.java:1796)
at org.eclipse.swt.graphics.GC.(GC.java:168)
at org.eclipse.draw2d.BufferedGraphicsSource.getGraphics(BufferedGraphicsSource.java:104)
at org.eclipse.draw2d.DeferredUpdateManager.getGraphics(DeferredUpdateManager.java:147)
at org.eclipse.draw2d.DeferredUpdateManager.repairDamage(DeferredUpdateManager.java:313)
at org.eclipse.draw2d.DeferredUpdateManager.performUpdate(DeferredUpdateManager.java:195)
at org.eclipse.draw2d.DeferredUpdateManager$UpdateRequest.run(DeferredUpdateManager.java:44)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:45.917
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Control.internal_new_GC(Control.java:1796)
at org.eclipse.swt.graphics.GC.(GC.java:168)
at org.eclipse.draw2d.BufferedGraphicsSource.getGraphics(BufferedGraphicsSource.java:104)
at org.eclipse.draw2d.DeferredUpdateManager.getGraphics(DeferredUpdateManager.java:147)
at org.eclipse.draw2d.DeferredUpdateManager.repairDamage(DeferredUpdateManager.java:313)
at org.eclipse.draw2d.DeferredUpdateManager.performUpdate(DeferredUpdateManager.java:195)
at org.eclipse.draw2d.DeferredUpdateManager$UpdateRequest.run(DeferredUpdateManager.java:44)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

!ENTRY org.eclipse.ui 4 4 2018-12-19 11:03:46.071
!MESSAGE An internal error has occurred.
!STACK 0
org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Display.error(Display.java:1263)
at org.eclipse.swt.widgets.Display.internal_new_GC(Display.java:2708)
at org.eclipse.swt.graphics.TextLayout.computeRuns(TextLayout.java:241)
at org.eclipse.swt.graphics.TextLayout.getLineCount(TextLayout.java:1896)
at org.eclipse.swt.custom.StyledTextRenderer.getTextLayout(StyledTextRenderer.java:990)
at org.eclipse.swt.custom.StyledTextRenderer.getTextLayout(StyledTextRenderer.java:720)
at org.eclipse.swt.custom.StyledText.getPointAtOffset(StyledText.java:5498)
at org.eclipse.swt.custom.StyledText.setCaretLocation(StyledText.java:8591)
at org.eclipse.swt.custom.StyledText.scrollVertical(StyledText.java:8127)
at org.eclipse.swt.custom.StyledText.setTopIndex(StyledText.java:10229)
at org.eclipse.ui.console.TextConsoleViewer.scrollToEndOfDocument(TextConsoleViewer.java:141)
at org.eclipse.ui.console.TextConsoleViewer.access$1(TextConsoleViewer.java:137)
at org.eclipse.ui.console.TextConsoleViewer$3.runInUIThread(TextConsoleViewer.java:131)
at org.eclipse.ui.progress.UIJob.lambda$0(UIJob.java:95)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:46.111
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Control.internal_new_GC(Control.java:1796)
at org.eclipse.swt.graphics.GC.win32_new(GC.java:5296)
at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:1582)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4900)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5191)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2560)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3815)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:46.125
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Control.internal_new_GC(Control.java:1796)
at org.eclipse.swt.graphics.GC.(GC.java:168)
at org.eclipse.draw2d.BufferedGraphicsSource.getGraphics(BufferedGraphicsSource.java:104)
at org.eclipse.draw2d.DeferredUpdateManager.getGraphics(DeferredUpdateManager.java:147)
at org.eclipse.draw2d.DeferredUpdateManager.repairDamage(DeferredUpdateManager.java:313)
at org.eclipse.draw2d.DeferredUpdateManager.performUpdate(DeferredUpdateManager.java:195)
at org.eclipse.draw2d.DeferredUpdateManager$UpdateRequest.run(DeferredUpdateManager.java:44)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:46.146
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Control.internal_new_GC(Control.java:1796)
at org.eclipse.swt.graphics.GC.(GC.java:168)
at org.eclipse.draw2d.BufferedGraphicsSource.getGraphics(BufferedGraphicsSource.java:104)
at org.eclipse.draw2d.DeferredUpdateManager.getGraphics(DeferredUpdateManager.java:147)
at org.eclipse.draw2d.DeferredUpdateManager.repairDamage(DeferredUpdateManager.java:313)
at org.eclipse.draw2d.DeferredUpdateManager.performUpdate(DeferredUpdateManager.java:195)
at org.eclipse.draw2d.DeferredUpdateManager$UpdateRequest.run(DeferredUpdateManager.java:44)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

!ENTRY org.eclipse.ui 4 4 2018-12-19 11:03:46.226
!MESSAGE An internal error has occurred.
!STACK 0
org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Display.error(Display.java:1263)
at org.eclipse.swt.widgets.Display.internal_new_GC(Display.java:2708)
at org.eclipse.swt.graphics.TextLayout.computeRuns(TextLayout.java:241)
at org.eclipse.swt.graphics.TextLayout.getLineCount(TextLayout.java:1896)
at org.eclipse.swt.custom.StyledTextRenderer.getTextLayout(StyledTextRenderer.java:990)
at org.eclipse.swt.custom.StyledTextRenderer.getTextLayout(StyledTextRenderer.java:720)
at org.eclipse.swt.custom.StyledText.getPointAtOffset(StyledText.java:5498)
at org.eclipse.swt.custom.StyledText.setCaretLocation(StyledText.java:8591)
at org.eclipse.swt.custom.StyledText.scrollVertical(StyledText.java:8127)
at org.eclipse.swt.custom.StyledText.setTopIndex(StyledText.java:10229)
at org.eclipse.ui.console.TextConsoleViewer.scrollToEndOfDocument(TextConsoleViewer.java:141)
at org.eclipse.ui.console.TextConsoleViewer.access$1(TextConsoleViewer.java:137)
at org.eclipse.ui.console.TextConsoleViewer$3.runInUIThread(TextConsoleViewer.java:131)
at org.eclipse.ui.progress.UIJob.lambda$0(UIJob.java:95)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:46.570
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Display.error(Display.java:1263)
at org.eclipse.swt.widgets.Display.internal_new_GC(Display.java:2708)
at org.eclipse.swt.graphics.Image.getImageDataAtCurrentZoom(Image.java:1707)
at org.eclipse.swt.graphics.Image.(Image.java:360)
at org.knime.workbench.editor2.figures.NodeContainerFigure.makeImageGhostly(NodeContainerFigure.java:466)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setLoopStatus(NodeContainerFigure.java:1426)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setStateFromNC(NodeContainerFigure.java:624)
at org.knime.workbench.editor2.editparts.NodeContainerEditPart$2.run(NodeContainerEditPart.java:418)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:46.610
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Control.internal_new_GC(Control.java:1796)
at org.eclipse.swt.graphics.GC.win32_new(GC.java:5296)
at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:1582)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4900)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5191)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2560)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3815)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:47.110
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Control.internal_new_GC(Control.java:1796)
at org.eclipse.swt.graphics.GC.win32_new(GC.java:5296)
at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:1582)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4900)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5191)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2560)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3815)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:47.158
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Display.error(Display.java:1263)
at org.eclipse.swt.widgets.Display.internal_new_GC(Display.java:2708)
at org.eclipse.swt.graphics.Image.getImageDataAtCurrentZoom(Image.java:1707)
at org.eclipse.swt.graphics.Image.(Image.java:360)
at org.knime.workbench.editor2.figures.NodeContainerFigure.makeImageGhostly(NodeContainerFigure.java:466)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setLoopStatus(NodeContainerFigure.java:1426)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setStateFromNC(NodeContainerFigure.java:624)
at org.knime.workbench.editor2.editparts.NodeContainerEditPart$2.run(NodeContainerEditPart.java:418)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

!ENTRY org.eclipse.ui 4 0 2018-12-19 11:03:47.159
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:4533)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:4559)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.widgets.Display.error(Display.java:1263)
at org.eclipse.swt.widgets.Display.internal_new_GC(Display.java:2708)
at org.eclipse.swt.graphics.Image.getImageDataAtCurrentZoom(Image.java:1707)
at org.eclipse.swt.graphics.Image.(Image.java:360)
at org.knime.workbench.editor2.figures.NodeContainerFigure.makeImageGhostly(NodeContainerFigure.java:466)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setLoopStatus(NodeContainerFigure.java:1426)
at org.knime.workbench.editor2.figures.NodeContainerFigure.setStateFromNC(NodeContainerFigure.java:624)
at org.knime.workbench.editor2.editparts.NodeContainerEditPart$2.run(NodeContainerEditPart.java:418)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
… 23 more

I am running KNIME on a VM with Windows Service 2016 x64. Any help would be greatly appreciated.

quaeler · December 23, 2018, 3:50am

Hi - yes. There is a fix for this which will be in 3.7.1, or you can download a nightly build from https://www.knime.com/form/nightly-build (or you can apply just a patch to fix this as described here Workflow freeze & graphics problems with KNIME 3.7 )

stoeter · February 6, 2019, 1:38pm

Hi,
I went through the forum posts and this error suppose to be fixed in nightly and latest release (3.7.1.)
Hm, strange, I still get this type of error, but I am running KNIME 3.7.1 on a Win7 computer.
Every couple of days it happens, it is kind of random. KNIME GUI is not responsive anymore, only parts of the KNIME windows are visible, just quitting the software helps.
This is what I could capture…

the menu looks weired and is not accessable…

Here is my log file…
knime - Copy.log (3.5 MB)

Many thanks and best regards!
Martin

quaeler · February 6, 2019, 4:02pm

Hi -

Thanks for the log. Can you confirm whether you updated your 3.7.0 release, or downloaded the 3.7.1 build? If you didn’t do the latter, can you try doing the latter?

Also, am i right to assume that this specific ‘Math Formula 5:560:550:548:628’ node is actually a wrapped metanode? If it is, do you mind sharing the details of it by screen shot or exporting it in its own workflow and attaching it here? (and in general, do you mind sharing some information about the workflow - at least the presence of loops, rough number of nodes, rough number of annotations ?)

stoeter · February 6, 2019, 4:17pm

Hi,
I can confirm it is 3.7.1

Capture

I updated maybe a week ago from 3.7.0 to 3.7.1 via the welcome page.
It is not specific to the math node, I had it happen on other nodes as well. It always happened when I wanted to enter the node configuration via double-click.
This particular node was three levels deep in a metanode, the workflow contains maybe few hundred nodes, the node was not in a loop, I dont have annotations in the workflow, just node annotations.
If it helps I can share/send the workflow without data. However it happend to me since 3.7 lets say 1-2 a week and I just now got so annoyed that I wanted to post it in the forum. I had it on several different workflows, though sometimes I just copy - paste parts of the workflows forth and back…
Let me know if you what the workflow and I will send it tomorrow…
Many thanks!
Martin

quaeler · February 6, 2019, 4:28pm

Yes - i would greatly appreciate if you could send the workflow. Also, could you try downloading the 3.7.1 application in its entirety and running against that (on the off chance that something failed to happen correctly during the upgrade from 3.7.0)?

stoeter · February 7, 2019, 11:21am

Hi,
ok, here is the workflow.
Since this error is not reproducible (I restarted KNIME, clicked the same Math node, everything fine) I think it will difficult to track the error.
I have installed a number of community and extra plugins, but I dont want to get all of them in order to make KNIME not too heavy. For now I will stay with my current installation, in case this error continues to happens I will download a new 3.7.1 version, thanks for the hint!
Best,
Martin

Workflow.knwf (752.2 KB)

quaeler · February 7, 2019, 3:51pm

Thank you for the workflow - even if it is not consistently reproducible, and to bore you with technicalities, i will be able to monitor a running KNIME for leaking these “SWT handles” (that eventually get exhausted on Windows platforms and cause the problems you’re seeing) while executing portions of your workflow, no matter how little.

I’ll update the thread with whatever i discover - thanks again.

quaeler · February 11, 2019, 12:12am

The workflow is quite the monster sized thing :- )

I noticed a few things about it, frequent use of some of the Erlwood and MPI plugins, and a lot of loops.

We had had problems in 3.7.0 with loops leaking handles, but thought we had fixed this for 3.7.1; i re-ran loop tests featuring 5000 cycle loops over several nodes, but in metanodes and at the top level, but saw no leakage.

I sampled the Erlwood 2D/3D Scatterplot which you use, but could not find it leaking either.

I could not test the MPI R Plot node you use as Rserve appears to be broken for me ( https://github.com/s-u/Rserve/issues/102#issuecomment-461984559 ) - so, i suppose there is a long shot that this thing is leaking handles like a sieve, but i’m not holding out hope for that.

Your workflow is sufficiently complex that i don’t have an easy way to create false data to feed it - if you could produce anonymized shareable data without a lot of hassle, please let me know.

Otherwise, once i get Rserve sorted out i’ll sample the MPI node - and beyond that stare at my navel periodically.

niederle · February 11, 2019, 8:54am

Hi,

can you please check which version of the Rserve package you are using. I would assume 1.7.something. If that is the case, you would need to build the Rserve package 1.8 from source (as it’s not available as binary). This should solve the problem.

Concerning ‘leaking handles’: How do you test that? I could look at our nodes if I know how.

Best,
Antje

quaeler · February 11, 2019, 7:49pm

I’ll check the Rserve package version.

For checking for leaks, i have written up a guide here: https://quaeler.github.io/knime-swt-leak

Thanks for your help!

niederle · February 12, 2019, 7:54am

Thanks a lot for the link. I will try to go through the steps.

niederle · February 14, 2019, 9:19am

@quaeler
I managed to set up Sleak but I am a bit helpless now, as I am not much familiar with that topic of ressource leaks. I am not sure how I should set up a workflow to test it and also the output is not very clear to me…
Question: Do these leaks only occur if using SWT-stuff? Our nodes usually use swing…
I dont’ get where I could look for problems. Any help would be appreciated.

quaeler · February 14, 2019, 4:00pm

Eclipse’s fundamental windowing toolkit is SWT - any custom Swing code is, at the end of the day, being shoe-horned into SWT.

So everything you do in KNIME UI-wise is SWT-based.

Ideally (not generally, but for this situation) you have workflows that you have been working with in which you’ve been experiencing freezing. In this situation:

startup KNIME
open one of those workflows
execute it once
take a snapshot in Sleak
execute it again
do a diff in Sleak
see if there are notable numbers of Image or GC instances listed
if there are, take another snapshot to set the baseline and repeat this for subsections of the workflow in order to try to determine if there are specific nodes, or configurations of nodes (like loops) which are the source of these continued instance generation

quaeler · February 14, 2019, 8:53pm

Hi @niederle @stoeter @gmakara -

I’ve found that nodes in loops are leaking one image per execution of the workflow (not execution of the node within the loop, but rather, basically, each time the loop is started and stopped, regardless of how many loops are run during that time.) It is plausible that, cumulatively, a long running application, having run workflows with many loops in them, may eventually exhaust SWT handles on Windows due to this leak (i.e this is the only lead i have so i’m correcting what i can.)

I have made a 3.7.1 patch jar with the fix that addresses this. Please get the patched workflow editor plugin jar from here:
http://theori.st/take_away/knime/11342/editor.jar
(or http://theori.st/take_away/knime/11342/editor.jar.zip if you have supervising software that doesn’t like JAR files to be downloaded).

Then, make sure KNIME is quit; using Explorer, find your knime_3.7.1\plugins\org.knime.workbench.editor_3.7.1.v201901281154 directory. In that directory, rename the existing editor.jar (like editor_jar.bak) so that you still have it around if you want to revert. Then copy the downloaded editor.jar into this directory and run KNIME.

Please report back whether you still experience freezes if you use the patch jar - thanks.

iiiaaa · February 26, 2019, 9:14am

I have the same issue: after updating knime to version 3.7.1 (Windows) it is almost impossible to work (the workflows freeze).
With this patch they works fine.

Phil_B · February 28, 2019, 8:50am

I have experienced a lot of freezes with 3.7.1, my workflow uses a lot of loops and I got freezes like every 15 minutes (Even while I was not running a loop)

I can confirm that after patching with quaeler’s jar, the freezes stopped and I can finally work again without beeing interupted by KNIME-Taskmanager-Kill-Actions…

Thanks !!

marten_kose · April 4, 2019, 1:02pm

First of all thanks everyone for providing feedback on this topic.

If for some reason applying the above mentioned patch is not possible for you, be assured you will also get the fix with the next release.

Best,
Marten