Cannot instantiate: org.eclipse.jdt.internal.ui.refactoring.contentassist.JavaTypeCompletionProcessor455
Cannot reference: org.eclipse.jdt.internal.ui.refactoring.contentassist.ControlContentAssistHelper createTextContentAssistant(...) 457 org.eclipse.jdt.internal.ui.refactoring.contentassist.JavaTypeCompletionProcessor setPackageFragment(...) 456