java.lang.OutOfMemoryError: GC overhead limit exceeded
   at java.util.ArrayList.iterator(ArrayList.java:814)
   at org.netbeans.modules.css.prep.editor.model.CPModel._visitChildren(CPModel.java:333)
   at org.netbeans.modules.css.prep.editor.model.CPModel.access$000(CPModel.java:74)
   at org.netbeans.modules.css.prep.editor.model.CPModel$2.visit(CPModel.java:320)
   at org.netbeans.modules.css.prep.editor.model.CPModel._visitChildren(CPModel.java:334)
   at org.netbeans.modules.css.prep.editor.model.CPModel.access$000(CPModel.java:74)
   at org.netbeans.modules.css.prep.editor.model.CPModel$2.visit(CPModel.java:320)
   at org.netbeans.modules.css.prep.editor.model.CPModel._visitChildren(CPModel.java:334)
   at org.netbeans.modules.css.prep.editor.model.CPModel.access$000(CPModel.java:74)
   at org.netbeans.modules.css.prep.editor.model.CPModel$2.visit(CPModel.java:320)
   at org.netbeans.modules.css.prep.editor.model.CPModel._visitChildren(CPModel.java:334)
   at org.netbeans.modules.css.prep.editor.model.CPModel.access$000(CPModel.java:74)
   at org.netbeans.modules.css.prep.editor.model.CPModel$2.visit(CPModel.java:320)
   at org.netbeans.modules.css.prep.editor.model.CPModel._visitChildren(CPModel.java:334)
   at org.netbeans.modules.css.prep.editor.model.CPModel.access$000(CPModel.java:74)
   at org.netbeans.modules.css.prep.editor.model.CPModel$2.visit(CPModel.java:320)
   at org.netbeans.modules.css.prep.editor.model.CPModel._visitChildren(CPModel.java:334)
   at org.netbeans.modules.css.prep.editor.model.CPModel.access$000(CPModel.java:74)
   at org.netbeans.modules.css.prep.editor.model.CPModel$2.visit(CPModel.java:320)
   at org.netbeans.modules.css.prep.editor.model.CPModel._visitChildren(CPModel.java:334)
   at org.netbeans.modules.css.prep.editor.model.CPModel.access$000(CPModel.java:74)
   at org.netbeans.modules.css.prep.editor.model.CPModel$2.visit(CPModel.java:320)
   at org.netbeans.modules.css.prep.editor.model.CPModel._visitChildren(CPModel.java:334)
   at org.netbeans.modules.css.prep.editor.model.CPModel.access$000(CPModel.java:74)
   at org.netbeans.modules.css.prep.editor.model.CPModel$2.visit(CPModel.java:320)
   at org.netbeans.modules.css.prep.editor.model.CPModel._visitChildren(CPModel.java:334)
   at org.netbeans.modules.css.prep.editor.model.CPModel.access$000(CPModel.java:74)
   at org.netbeans.modules.css.prep.editor.model.CPModel$2.visit(CPModel.java:320)
   at org.netbeans.modules.css.prep.editor.model.CPModel.findVariables(CPModel.java:326)
   at org.netbeans.modules.css.prep.editor.model.CPModel.<init>(CPModel.java:133)
   at org.netbeans.modules.css.prep.editor.model.CPModel.getModel(CPModel.java:97)
   at org.netbeans.modules.css.prep.editor.CPCssEditorModule.getStructureItemsNodeVisitor(CPCssEditorModule.java:709)