Bug 224341 [ErrorHandling] SafeRunnnableDialog shows only "Reason" as message.
In case of an error the SafeRunner.class will open a SafeRunnnableDialg which (often) only prints String "Reason" and no further information. The reason are a failure in the dialog and and wrong properties-file entry. At end [Line 74] of constructor SafeRunnableDialog(IStatus status) of org.eclipse.jface.util.SafeRunnableDialog.class you will see following code: this.message = JFaceResources.format(JFaceResources .getString("SafeRunnableDialog_reason"), new Object[] { //$NON-NLS-1$ status.getMessage(), reason }); 1.) JFaceResources.format(String key, Object[] args) expects as first parameter a key in a resource bundle, but is already getting the localized value to this key --> leading to MissingResourceException 2.) the properties-value of key "SafeRunnableDialog_reason" in org.eclipse.jface.message.properties = "Reason", but should be "{0} Reason: {1}"
bundles/org.eclipse.jface/src/org/eclipse/jface/util/SafeRunnableDialog.java
if (status.getException() != null) {
			reason = status.getException().getMessage() == null ? status
					.getException().toString() : status.getException()
					.getMessage();
		}
		this.message = JFaceResources.format(JFaceResources
				.getString("SafeRunnableDialog_reason"), new Object[] { 
				status.getMessage(), reason });
	}
	/**
	 * Method which should be invoked when new errors become available for
	 * display
	 */
	void refresh() {
		if (AUTOMATED_MODE)
			return;
		createStatusList((Composite) dialogArea);
		updateEnablements();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.ErrorDialog#createDialogArea(org.eclipse.swt.widgets.Composite)
	 */
	protected Control createDialogArea(Composite parent) {
		Control area = super.createDialogArea(parent);
		createStatusList((Composite) area);
		return area;
	}
	/**