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/ASTResolving.java
}
		return kinds;
	}
	
	
	private static int internalGetPossibleTypeKinds(ASTNode node) {
		int kind= SimilarElementsRequestor.ALL_TYPES;
		ASTNode parent= node.getParent();
		while (parent instanceof QualifiedName) {
			if (node.getLocationInParent() == QualifiedName.QUALIFIER_PROPERTY) {
				return SimilarElementsRequestor.REF_TYPES;
			}
			node= parent;
			parent= parent.getParent();
		}
		while (parent instanceof Type) {
			if (parent instanceof QualifiedType) {
				if (node.getLocationInParent() == QualifiedType.QUALIFIER_PROPERTY) {
					return SimilarElementsRequestor.REF_TYPES;
				}
			} else if (parent instanceof ParameterizedType) {
				if (node.getLocationInParent() == ParameterizedType.TYPE_ARGUMENTS_PROPERTY) {
					return SimilarElementsRequestor.REF_TYPES;
				}
			} else if (parent instanceof WildcardType) {
				if (node.getLocationInParent() == WildcardType.BOUND_PROPERTY) {
					return SimilarElementsRequestor.REF_TYPES;
				}
			}
			node= parent;