GROOVY-11237: Support static interface methods

[paulk-asert]

No description provided.

[eric-milles]

Also JavaStubGenerator needs to write "static". And if you support non-public static methods, the visibility modifier.

    private void printMethod(final PrintWriter out, final ClassNode classNode, final MethodNode methodNode) {
        if (methodNode.isStaticConstructor()) return;
        if (methodNode.isPrivate() || !Utilities.isJavaIdentifier(methodNode.getName())) return;
        if (methodNode.isSynthetic() && (methodNode.getName().equals("$getStaticMetaClass"))) return;

        printAnnotations(out, methodNode);
        if (!isInterfaceOrTrait(classNode)) {
            int modifiers = methodNode.getModifiers();
            if (classNode.isEnum()) modifiers &= ~Opcodes.ACC_ABSTRACT;
            else if (isDefaultTraitImpl(methodNode)) modifiers ^= Opcodes.ACC_ABSTRACT;
            if (methodNode.isSyntheticPublic() && hasPackageScopeXform(methodNode, PackageScopeTarget.METHODS)) modifiers &= ~Opcodes.ACC_PUBLIC;

            printModifiers(out, modifiers);
        } else if (methodNode.isDefault()) {
            out.print("default ");
        } else if (methodNode.isStatic()) { // ADDED
            out.print("static ");
        }

[eric-milles]

With static method support so close at hand, did you think of re-rolling 5.0.0-alpha-3?

[eric-milles]

I have all these changes together locally if you'd like me to push a branch or commit.

[paulk-asert]

With static method support so close at hand, did you think of re-rolling 5.0.0-alpha-3?

Let's go with the current release and shoot for another before the end of the year.

[paulk-asert]

I have all these changes together locally if you'd like me to push a branch or commit.

I've included some of them with tweaks. I'll merge when ready but feel free to amend further if needed.