java.lang.ClassCastException: org.netbeans.editor.ext.ExtSyntaxSupport
	at org.netbeans.modules.spring.beans.editor.SpringXMLConfigEditorUtils.getDocumentRoot(SpringXMLConfigEditorUtils.java:168)
	at org.netbeans.modules.spring.beans.model.impl.ConfigFileSpringBeanSource$DocumentParser.run(ConfigFileSpringBeanSource.java:138)
	at org.netbeans.modules.spring.beans.model.impl.ConfigFileSpringBeanSource.parse(ConfigFileSpringBeanSource.java:101)
	at org.netbeans.modules.spring.beans.model.SpringConfigFileModelController.doParse(SpringConfigFileModelController.java:146)
	at org.netbeans.modules.spring.beans.model.SpringConfigFileModelController.access$100(SpringConfigFileModelController.java:68)
	at org.netbeans.modules.spring.beans.model.SpringConfigFileModelController$LockedDocument.lock(SpringConfigFileModelController.java:209)
	at org.netbeans.modules.spring.beans.model.SpringConfigModelController$2.call(SpringConfigModelController.java:212)
	at org.netbeans.modules.spring.beans.model.SpringConfigModelController$2.call(SpringConfigModelController.java:197)
	at org.netbeans.modules.spring.beans.model.ExclusiveAccess.runSyncTask(ExclusiveAccess.java:87)
	at org.netbeans.modules.spring.beans.model.SpringConfigModelController.runDocumentAction0(SpringConfigModelController.java:196)
	at org.netbeans.modules.spring.beans.model.SpringConfigModelController.runDocumentAction(SpringConfigModelController.java:182)
	at org.netbeans.modules.spring.api.beans.model.SpringConfigModel.runDocumentAction(SpringConfigModel.java:102)
	at org.netbeans.modules.spring.beans.refactoring.Occurrences.getJavaClassOccurrences(Occurrences.java:66)
	at org.netbeans.modules.spring.beans.refactoring.plugins.SpringRenamePlugin.prepare(SpringRenamePlugin.java:129)
	at org.netbeans.modules.refactoring.api.AbstractRefactoring.pluginsPrepare(AbstractRefactoring.java:380)
	at org.netbeans.modules.refactoring.api.AbstractRefactoring.prepare(AbstractRefactoring.java:202)
	at org.netbeans.modules.refactoring.spi.impl.ParametersPanel$Prepare.run(ParametersPanel.java:765)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)