Bug 82940 [quick fix] Missing sensible conversion suggestion
For this code > % cat Test.java import java.util.Collections; import java.util.List; public class Test { interface Wrapper { int doit(); } private static final List<Wrapper> STD_WRAPPERS = Collections.singletonList ((Wrapper)new Wrapper() { public int doit() { return 0; } }); private static final List<Wrapper> STD_WRAPPERS2 = Collections.singletonList (new Wrapper() { public int doit() { return 0; } }); } The value passed Collections.singletonList is actually of the right type so a sensible conversion would be to put in the cast (see the difference between the 2 statics). The current quick fixes offered assume the type being assigned to is wrong (when infact it is right). A useful quick fix would be to cast the parameter to the right type to give the left type (this would help with any 1 arg method of the form X<T> method(T)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/UnresolvedElementsSubProcessor.java
}
			}
		}
	}
	private static CUCorrectionProposal createTypeRefChangeProposal(ICompilationUnit cu, String fullName, Name node, int relevance) throws CoreException {
		ImportRewrite importRewrite= new ImportRewrite(cu);
		importRewrite.setFindAmbiguosImports(true);
		String simpleName= importRewrite.addImport(fullName);
		String packName= Signature.getQualifier(fullName);
		String[] arg= { simpleName, packName };
		if (!isLikelyTypeName(simpleName)) {
			relevance -= 2;
		}
		CUCorrectionProposal proposal;
		if (node.isSimpleName() && simpleName.equals(((SimpleName) node).getIdentifier())) { 
			
			String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_importtype_description, arg);
			Image image= JavaPluginImages.get(JavaPluginImages.IMG_OBJS_IMPDECL);
			proposal= new CUCorrectionProposal(label, cu, relevance + 100, image);
			proposal.setCommandId(ADD_IMPORT_ID);
		} else {
			String label;
			if (packName.length() == 0) {
				label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changetype_nopack_description, simpleName);
			} else {
				label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changetype_description, arg);
			}
			proposal= new RenameNodeCompletionProposal(label, cu, node.getStartPosition(), node.getLength(), simpleName, relevance); 
		}
		proposal.setImportRewrite(importRewrite);