sql/internal/NonClosableMutableURLClassLoader.java

0001 /*
0002  * Licensed to the Apache Software Foundation (ASF) under one or more
0003  * contributor license agreements.  See the NOTICE file distributed with
0004  * this work for additional information regarding copyright ownership.
0005  * The ASF licenses this file to You under the Apache License, Version 2.0
0006  * (the "License"); you may not use this file except in compliance with
0007  * the License.  You may obtain a copy of the License at
0008  *
0009  *    http://www.apache.org/licenses/LICENSE-2.0
0010  *
0011  * Unless required by applicable law or agreed to in writing, software
0012  * distributed under the License is distributed on an "AS IS" BASIS,
0013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0014  * See the License for the specific language governing permissions and
0015  * limitations under the License.
0016  */
0017
0018 package org.apache.spark.sql.internal;
0019
0020 import java.net.URL;
0021
0022 import org.apache.spark.util.MutableURLClassLoader;
0023
0024 /**
0025  * This class loader cannot be closed (its `close` method is a no-op).
0026  */
0027 public class NonClosableMutableURLClassLoader extends MutableURLClassLoader {
0028
0029   static {
0030     ClassLoader.registerAsParallelCapable();
0031   }
0032
0033   public NonClosableMutableURLClassLoader(ClassLoader parent) {
0034     super(new URL[]{}, parent);
0035   }
0036
0037   @Override
0038   public void close() {}
0039 }