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java.lang.IllegalArgumentException: Adding text to an XML document must not be null	at org.dom4j.DocumentFactory.createText(DocumentFactory.java:174)	at org.dom4j.tree.AbstractElement.addText(AbstractElement.java:899)	at org.dom4j.tree.AbstractElement.setText(AbstractElement.java:1120)	at net.sourceforge.sqlexplorer.dbproduct.AliasManager.convertToV350(AliasManager.java:197)	at net.sourceforge.sqlexplorer.dbproduct.AliasManager.loadAliases(AliasManager.java:66)	at net.sourceforge.sqlexplorer.plugin.SQLExplorerPlugin.start(SQLExplorerPlugin.java:110)	at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:1009)	at java.security.AccessController.doPrivileged(Native Method)	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1003)	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:984)	at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346)	at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:265)	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:400)	at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:111)	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:427)	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:193)	at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:368)	at org.eclipse.osgi.framework.internal.core.BundleLoader.findClassInternal(BundleLoader.java:444)	at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:397)	at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:385)	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:87)	at java.lang.ClassLoader.loadClass(Unknown Source)	at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:313)	at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)	at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1274)	at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:160)	at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:867)	at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)	at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)	at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:267)	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)	at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:263)	at org.eclipse.ui.internal.registry.EditorDescriptor.createEditor(EditorDescriptor.java:233)	at org.eclipse.ui.internal.EditorManager.createPart(EditorManager.java:846)	at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:606)	at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:428)	at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:594)	at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:266)	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2820)	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2729)	at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2721)	at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2673)	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2668)	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2652)	at org.eclipse.ui.actions.OpenWithMenu.openEditor(OpenWithMenu.java:337)	at org.eclipse.ui.actions.OpenWithMenu.access$0(OpenWithMenu.java:325)	at org.eclipse.ui.actions.OpenWithMenu$2.handleEvent(OpenWithMenu.java:187)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)	at org.eclipse.equinox.launcher.Main.run(Main.java:1236)	at org.eclipse.equinox.launcher.Main.main(Main.java:1212)