Dear Community,
I am trying to use Capella on Linux Fedora, I already use it on Mac and Windows, but I switched to this OS now, and I need some support.
Everything I tried worked so far, I imported the projects, changed the workspace, executed the migration, etc., but I cannot work on the projects! Put it simply, when I open a diagram and click on an element in the Palette (e.g. the Operational Actor), that element does not show up on my pointer as expected and I cannot drop it in the diagram I am working on.
I tried downloading Capella again, but it did not work.
i am using the latest version available for download: capella-7.0.1.202503211540-linux-gtk-x86_64.
Any suggestions?
Thank you a lot,
Flavio
Do you have the same behavior when creating a new empty Capella project on the Fedora env?
Hi Stephane,
I just tried creating a new project on the Fedora env, but the issue is present also in this case.
Do you have any suggestions?
Maybe a problem with the Java installation?
It should not be a problem with Java.
Con you open the error view and see if you see any error. Or share your log file?
There it is. It logs the exact moment I click on an element in the Palette that I want to add to a diagram.
Here is the full error log:
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.gef.SharedCursors
at org.eclipse.gef.tools.CreationTool.(CreationTool.java:53)
at org.eclipse.gef.tools.CreationTool.(CreationTool.java:63)
at org.eclipse.sirius.diagram.ui.tools.internal.palette.CreationTool.(CreationTool.java:46)
at org.eclipse.sirius.diagram.ui.tools.internal.palette.CreationToolPaletteFactory.createTool(CreationToolPaletteFactory.java:47)
at org.eclipse.gmf.runtime.diagram.ui.internal.services.palette.PaletteToolEntry.createTool(PaletteToolEntry.java:47)
at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramEditorWithFlyOutPalette$1$1.keyReleased(DiagramEditorWithFlyOutPalette.java:217)
at org.eclipse.gef.KeyHandler.keyReleased(KeyHandler.java:71)
at org.eclipse.gef.tools.SelectionTool.handleKeyUp(SelectionTool.java:350)
at org.eclipse.gef.tools.AbstractTool.keyUp(AbstractTool.java:1013)
at org.eclipse.gef.tools.SelectionTool.keyUp(SelectionTool.java:505)
at org.eclipse.gef.EditDomain.keyUp(EditDomain.java:188)
at org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchKeyReleased(DomainEventDispatcher.java:291)
at org.eclipse.draw2d.LightweightSystem$EventHandler.keyReleased(LightweightSystem.java:520)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:178)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5855)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1529)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1555)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1538)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1577)
at org.eclipse.swt.widgets.Widget.gtk_key_release_event(Widget.java:941)
at org.eclipse.swt.widgets.Control.gtk_key_release_event(Control.java:4035)
at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2508)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:6834)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:6163)
at org.eclipse.swt.internal.gtk3.GTK3.gtk_main_do_event(Native Method)
at org.eclipse.swt.widgets.Display.eventProc(Display.java:1597)
at org.eclipse.swt.internal.gtk3.GTK3.gtk_main_iteration_do(Native Method)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4514)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:643)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:550)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:171)
at org.polarsys.capella.core.platform.sirius.ui.app.CapellaApplication.start(CapellaApplication.java:118)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
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:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.IllegalArgumentException: Argument cannot be null [in thread “main”]
at org.eclipse.swt.SWT.error(SWT.java:4899)
at org.eclipse.swt.SWT.error(SWT.java:4833)
at org.eclipse.swt.SWT.error(SWT.java:4804)
at org.eclipse.swt.graphics.Cursor.(Cursor.java:192)
at org.eclipse.gef.SharedCursors.createCursor(SharedCursors.java:59)
at org.eclipse.gef.SharedCursors.(SharedCursors.java:46)
at org.eclipse.gef.tools.AbstractConnectionCreationTool.(AbstractConnectionCreationTool.java:75)
at org.eclipse.gef.tools.ConnectionCreationTool.(ConnectionCreationTool.java:41)
at org.eclipse.sirius.diagram.ui.tools.internal.palette.ConnectionCreationTool.(ConnectionCreationTool.java:36)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
at java.base/java.lang.reflect.ReflectAccess.newInstance(ReflectAccess.java:128)
at java.base/jdk.internal.reflect.ReflectionFactory.newInstance(ReflectionFactory.java:347)
at java.base/java.lang.Class.newInstance(Class.java:645)
at org.eclipse.gef.palette.ToolEntry.createTool(ToolEntry.java:74)
at org.eclipse.gef.EditDomain.handlePaletteToolChanged(EditDomain.java:148)
at org.eclipse.gef.EditDomain$1.activeToolChanged(EditDomain.java:53)
at org.eclipse.gef.ui.palette.PaletteViewer.fireModeChanged(PaletteViewer.java:167)
at org.eclipse.gef.ui.palette.PaletteViewer.setActiveTool(PaletteViewer.java:387)
at org.eclipse.gef.internal.ui.palette.editparts.ToolEntryEditPart.lambda$0(ToolEntryEditPart.java:390)
at org.eclipse.draw2d.Clickable.lambda$0(Clickable.java:195)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at org.eclipse.draw2d.Clickable.fireActionPerformed(Clickable.java:195)
at org.eclipse.draw2d.Clickable$1.actionPerformed(Clickable.java:167)
at org.eclipse.draw2d.ButtonModel.lambda$0(ButtonModel.java:132)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at org.eclipse.draw2d.ButtonModel.fireActionPerformed(ButtonModel.java:132)
at org.eclipse.draw2d.ToggleModel.fireActionPerformed(ToggleModel.java:28)
at org.eclipse.draw2d.ButtonModel$DefaultFiringBehavior.released(ButtonModel.java:472)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at org.eclipse.draw2d.ButtonModel.fireReleased(ButtonModel.java:165)
at org.eclipse.draw2d.ButtonModel.setPressed(ButtonModel.java:433)
at org.eclipse.gef.internal.ui.palette.editparts.ToolEntryEditPart$GTKToggleButtonTracker.handleButtonUp(ToolEntryEditPart.java:143)
at org.eclipse.gef.tools.AbstractTool.mouseUp(AbstractTool.java:1154)
at org.eclipse.gef.tools.SelectionTool.mouseUp(SelectionTool.java:581)
at org.eclipse.gef.EditDomain.mouseUp(EditDomain.java:278)
at org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchMouseReleased(DomainEventDispatcher.java:400)
at org.eclipse.draw2d.LightweightSystem$EventHandler.mouseUp(LightweightSystem.java:573)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:224)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5855)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1529)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:5065)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4517)
… 22 more
Hi.
I can’t seem to reproduce this myself, under Fedora 42 and with a freshly downloaded Capella 7.0.1.
I’m under Wayland, but I also forced Eclipse/Capella to start in X11 mode (GDK_BACKEND=x11), and in both cases the palette tools work, without anything in the error log.
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