scala.MatchError: <font color=#0000e6>class</font>&nbsp;<font color=#000000>Device</font>&nbsp;<font color=#000000>{</font>
        at org.netbeans.modules.scala.refactoring.ui.tree.TreeElementFactoryImpl.getTreeElement(TreeElementFactoryImpl.java:77)
        at org.netbeans.modules.refactoring.spi.ui.TreeElementFactory.getTreeElement(TreeElementFactory.java:66)
        at org.netbeans.modules.cnd.refactoring.ui.tree.RefactoringTreeElement.getParent(RefactoringTreeElement.java:76)
        at org.netbeans.modules.refactoring.spi.impl.RefactoringPanel.createNode(RefactoringPanel.java:414)
        at org.netbeans.modules.refactoring.spi.impl.RefactoringPanel.access$500(RefactoringPanel.java:80)
        at org.netbeans.modules.refactoring.spi.impl.RefactoringPanel$3.run(RefactoringPanel.java:654)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:640)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1122)
Caused: org.openide.util.RequestProcessor$FastItem: task failed due to: scala.MatchError: <font color=#0000e6>class</font>&nbsp;<font color=#000000>Device</font>&nbsp;<font color=#000000>{</font>