#1077 org.nightlabs.base.ui.composite.AbstractListComposite.removeElement(...) should check for existence of element.

[jfirechief]

DO NOT EDIT OR ANSWER THIS ISSUE. SEE THE ORIGINAL ISSUE INSTEAD:
https://www.jfire.org/modules/bugs/view.php?id=1423
ORIGINAL REPORTER: marco

11:05:05,991 ERROR [ExceptionHandlerRegistry] org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.IllegalArgumentException: Index out of bounds)
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.IllegalArgumentException: Index out of bounds)
at org.eclipse.swt.SWT.error(SWT.java:3563)
at org.eclipse.swt.SWT.error(SWT.java:3481)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:126)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3659)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3296)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2448)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2412)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2278)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.nightlabs.base.ui.app.AbstractApplication.start(AbstractApplication.java:347)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:153)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:504)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:443)
at org.eclipse.equinox.launcher.Main.run(Main.java:1169)
at org.eclipse.equinox.launcher.Main.main(Main.java:1144)
Caused by: java.lang.IllegalArgumentException: Index out of bounds
at org.eclipse.swt.SWT.error(SWT.java:3547)
at org.eclipse.swt.SWT.error(SWT.java:3481)
at org.eclipse.swt.SWT.error(SWT.java:3452)
at org.eclipse.swt.widgets.Widget.error(Widget.java:432)
at org.eclipse.swt.widgets.List.remove(List.java:785)
at org.nightlabs.base.ui.composite.ListComposite.removeElementFromGui(ListComposite.java:173)
at org.nightlabs.base.ui.composite.AbstractListComposite.removeElement(AbstractListComposite.java:366)
at de.lexware.lohn.InsuranceListComposite$InsuranceChangeListener$1.run(InsuranceListComposite.java:123)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
... 23 more