Initial import of apache-commons-lang from upstream master am: ff344be6c0 am: a44dd5043c am: 47d7817e55

Original change: https://android-review.googlesource.com/c/platform/external/apache-commons-lang/+/2434253

Change-Id: I0408fff7dc7f251589c843e2fd949212e284d838
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/main/java/org/apache/commons/lang3/ClassLoaderUtils.java b/src/main/java/org/apache/commons/lang3/ClassLoaderUtils.java
new file mode 100644
index 000000000..a87156a08
--- /dev/null
+++ b/src/main/java/org/apache/commons/lang3/ClassLoaderUtils.java
@@ -0,0 +1,53 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.commons.lang3;
+
+import java.net.URLClassLoader;
+import java.util.Arrays;
+
+/**
+ * Helps work with {@link ClassLoader}.
+ *
+ * @since 3.10
+ */
+public class ClassLoaderUtils {
+
+    /**
+     * Converts the given class loader to a String calling {@link #toString(URLClassLoader)}.
+     *
+     * @param classLoader to URLClassLoader to convert.
+     * @return the formatted string.
+     */
+    public static String toString(final ClassLoader classLoader) {
+        if (classLoader instanceof URLClassLoader) {
+            return toString((URLClassLoader) classLoader);
+        }
+        return classLoader.toString();
+    }
+
+    /**
+     * Converts the given URLClassLoader to a String in the format
+     * {@code "URLClassLoader.toString() + [URL1, URL2, ...]"}.
+     *
+     * @param classLoader to URLClassLoader to convert.
+     * @return the formatted string.
+     */
+    public static String toString(final URLClassLoader classLoader) {
+        return classLoader + Arrays.toString(classLoader.getURLs());
+    }
+}