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java.lang.NullPointerException: 	at java.util.regex.Pattern.(Unknown Source)	at java.util.regex.Pattern.compile(Unknown Source)	at ru.runa.gpd.ui.custom.HighlightTextStyling$RegexpHighlight.(HighlightTextStyling.java:49)	at ru.runa.gpd.ui.custom.JavaHighlightTextStyling.(JavaHighlightTextStyling.java:38)	at ru.runa.gpd.extension.handler.GroovyActionHandlerProvider$ConfigurationDialog.createDialogFooter(GroovyActionHandlerProvider.java:70)	at ru.runa.gpd.extension.DelegableConfigurationDialog.createDialogArea(DelegableConfigurationDialog.java:47)	at org.eclipse.jface.dialogs.Dialog.createContents(Dialog.java:760)	at org.eclipse.jface.window.Window.create(Window.java:431)	at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1089)	at org.eclipse.jface.window.Window.open(Window.java:790)	at ru.runa.gpd.extension.DelegableProvider.showConfigurationDialog(DelegableProvider.java:27)	at ru.runa.gpd.property.DelegableConfPropertyDescriptor$DelegableCellEditor.openDialogBox(DelegableConfPropertyDescriptor.java:37)	at org.eclipse.jface.viewers.DialogCellEditor$2.widgetSelected(DialogCellEditor.java:244)	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)	at ru.runa.gpd.Application.start(Application.java:16)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)	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:344)	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:622)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)