content: /**
   * 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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.activemq.broker.scheduler;
  
  import org.apache.activemq.broker.SslContext;
  import org.junit.Test;
  
  import javax.net.ssl.SSLContext;
  import java.security.KeyManagementException;
  import java.security.NoSuchAlgorithmException;
  import java.security.NoSuchProviderException;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  import java.util.concurrent.TimeUnit;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  public class SslContextTest {
      SslContext underTest = new SslContext();
  
      @Test
      public void testConcurrentGet() throws Exception {
  
          final int numReps = 100;
          ExecutorService executorService = Executors.newFixedThreadPool(numReps);
          final SSLContext[] results = new SSLContext[numReps];
  
          for (int i=0; i<numReps; i++) {
              final int instanceIndex = i;
              executorService.execute(new Runnable() {
                  @Override
                  public void run() {
                      try {
                          results[instanceIndex] = underTest.getSSLContext();
                      } catch (NoSuchProviderException e) {
                          e.printStackTrace();
                      } catch (NoSuchAlgorithmException e) {
                          e.printStackTrace();
                      } catch (KeyManagementException e) {
                          e.printStackTrace();
                      }
                  }
              });
          }
  
          executorService.shutdown();
          assertTrue(executorService.awaitTermination(10, TimeUnit.SECONDS));
  
          for (int i=0; i<numReps; i++) {
              assertEquals("single instance", results[0], results[i]);
          }
      }
  }
  