1 files changed, 0 insertions, 98 deletions
diff --git a/java/java/common/src/org/apache/qpid/pool/ReferenceCountingExecutorService.java b/java/java/common/src/org/apache/qpid/pool/ReferenceCountingExecutorService.java
deleted file mode 100644
index 637464f247..0000000000
--- a/java/java/common/src/org/apache/qpid/pool/ReferenceCountingExecutorService.java
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- *
- * 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.qpid.pool;
-
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
-/**
- * We share the executor service among several PoolingFilters. This class reference counts
- * how many filter chains are using the executor service and destroys the service, thus
- * freeing up its threads, when the count reaches zero. It recreates the service when
- * the count is incremented.
- *
- * This is particularly important on the client where failing to destroy the executor
- * service prevents the JVM from shutting down due to the existence of non-daemon threads.
- *
- */
-public class ReferenceCountingExecutorService
-{
-    private static final int MINIMUM_POOL_SIZE = 4;
-    private static final int NUM_CPUS = Runtime.getRuntime().availableProcessors();
-    private static final int DEFAULT_POOL_SIZE = Math.max(NUM_CPUS, MINIMUM_POOL_SIZE);
-
-    /**
-     * We need to be able to check the current reference count and if necessary
-     * create the executor service atomically.
-     */
-    private static final ReferenceCountingExecutorService _instance = new ReferenceCountingExecutorService();
-
-    private final Object _lock = new Object();
-
-    private ExecutorService _pool;
-
-    private int _refCount = 0;
-
-    private int _poolSize = Integer.getInteger("amqj.read_write_pool_size", DEFAULT_POOL_SIZE);
-
-    public static ReferenceCountingExecutorService getInstance()
-    {
-        return _instance;
-    }
-
-    private ReferenceCountingExecutorService()
-    {
-    }
-
-    ExecutorService acquireExecutorService()
-    {
-        synchronized (_lock)
-        {
-            if (_refCount++ == 0)
-            {
-                _pool = Executors.newFixedThreadPool(_poolSize);
-            }
-            return _pool;
-        }
-    }
-
-    void releaseExecutorService()
-    {
-        synchronized (_lock)
-        {
-            if (--_refCount == 0)
-            {
-                _pool.shutdownNow();
-            }
-        }
-    }
-
-    /**
-     * The filters that use the executor service should call this method to get access
-     * to the service. Note that this method does not alter the reference count.
-     *
-     * @return the underlying executor service
-     */
-    public ExecutorService getPool()
-    {
-        return _pool;
-    }
-}