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
return true;
			}
		}
		ITypeBinding superclass= typeBinding.getSuperclass();
		if (superclass != null) {
			return hasMethodWithName(superclass, name);
		}
		return false;
	}
	private static int evauateTypeKind(ASTNode node, IJavaProject project) {
		int kind= ASTResolving.getPossibleTypeKinds(node, JavaModelUtil.is50OrHigher(project));
		return kind;
	}
	public static void getTypeProposals(IInvocationContext context, IProblemLocation problem, Collection proposals) throws CoreException {
		ICompilationUnit cu= context.getCompilationUnit();
		ASTNode selectedNode= problem.getCoveringNode(context.getASTRoot());
		if (selectedNode == null) {
			return;
		}
		int kind= evauateTypeKind(selectedNode, cu.getJavaProject());
		while (selectedNode.getParent() instanceof QualifiedName) {
			selectedNode= selectedNode.getParent();
		}
		Name node= null;
		if (selectedNode instanceof SimpleType) {
			node= ((SimpleType) selectedNode).getName();
		} else if (selectedNode instanceof ArrayType) {
			Type elementType= ((ArrayType) selectedNode).getElementType();
			if (elementType.isSimpleType()) {
				node= ((SimpleType) elementType).getName();