java.lang.NullPointerException
   at org.vaadin.netbeans.maven.project.VaadinVersions.isVersionEqualOrHigher(VaadinVersions.java:99)
   at org.vaadin.netbeans.editor.analyzer.ThemeFix.supportsValoTheme(ThemeFix.java:267)
   at org.vaadin.netbeans.editor.analyzer.ThemeFix.createTheme(ThemeFix.java:250)
   at org.vaadin.netbeans.editor.analyzer.ThemeFix.implement(ThemeFix.java:141)
   at org.netbeans.modules.editor.hints.HintsUI$1.run(HintsUI.java:837)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)