/*
 * Copyright 2015 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.gradle.internal.classloader;

import java.io.Closeable;
import java.io.IOException;

public abstract class ClassLoaderUtils {
    public static void tryClose(ClassLoader classLoader) {
        if (classLoader instanceof Closeable) {
            try {
                ((Closeable) classLoader).close();
            } catch (IOException ignore) {
                // do nothing.
            }
        }
    }
}

@@ -651,16 +651,49 @@
 oader;%0A%0A
+import org.gradle.api.Nullable;%0A%0A
 import j
@@ -812,16 +812,26 @@
 ryClose(
+@Nullable 
 ClassLoa

Mark ClassLoaderUtils.tryClose parameter @Nullable, since it does the right thing with null references.