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 proposal;
	}
	private static boolean isLikelyTypeName(String name) {
		return name.length() > 0 && Character.isUpperCase(name.charAt(0));
	}
	private static boolean isLikelyPackageName(String name) {
		if (name.length() != 0) {
			int i= 0;
			do {
				if (Character.isUpperCase(name.charAt(i))) {
					return false;
				}
				i= name.indexOf('.', i) + 1;
			} while (i != 0 && i < name.length());
		}
		return true;
	}
	private static boolean isLikelyTypeParameterName(String name) {
		return name.length() == 1 && Character.isUpperCase(name.charAt(0));
	}
	private static void addNewTypeProposals(ICompilationUnit cu, Name refNode, int kind, int relevance, Collection proposals) throws JavaModelException {
		Name node= refNode;
		do {
			String typeName= ASTNodes.getSimpleNameIdentifier(node);
			Name qualifier= null;
			
			boolean isPossibleName= isLikelyTypeName(typeName) || (node == refNode);
			if (isPossibleName) {
				IPackageFragment enclosingPackage= null;
				IType enclosingType= null;