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
}
		} else if (selectedNode instanceof Name) {
			node= (Name) selectedNode;
		} else {
			return;
		}
		
		addSimilarTypeProposals(kind, cu, node, 3, proposals);
		
		addNewTypeProposals(cu, node, kind, 0, proposals);
	}
	private static void addSimilarTypeProposals(int kind, ICompilationUnit cu, Name node, int relevance, Collection proposals) throws CoreException {
		SimilarElement[] elements= SimilarElementsRequestor.findSimilarElement(cu, node, kind);
		
		String resolvedTypeName= null;
		ITypeBinding binding= ASTResolving.guessBindingForTypeReference(node);
		if (binding != null) {
			if (binding.isArray()) {
				binding= binding.getElementType();
			}
			resolvedTypeName= binding.getQualifiedName();
			proposals.add(createTypeRefChangeProposal(cu, resolvedTypeName, node, relevance + 2));
		}
		
		for (int i= 0; i < elements.length; i++) {
			SimilarElement elem= elements[i];
			if ((elem.getKind() & SimilarElementsRequestor.ALL_TYPES) != 0) {
				String fullName= elem.getName();
				if (!fullName.equals(resolvedTypeName)) {
					proposals.add(createTypeRefChangeProposal(cu, fullName, node, relevance));