Merge "BUG-648: Improve performance by reusing old data nodes"

[controller.git] / opendaylight / md-sal / sal-binding-broker / src / main / java / org / opendaylight / controller / sal / binding / codegen / impl / SingletonHolder.java

diff --git a/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/codegen/impl/SingletonHolder.java b/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/codegen/impl/SingletonHolder.java
index cf754cc74e7c5b386c9b27209726d111f3ebb147..827644676665a1d1576abdbd2fe5caf2d8113a66 100644 (file)
--- a/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/codegen/impl/SingletonHolder.java
+++ b/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/codegen/impl/SingletonHolder.java
@@ -7,9 +7,6 @@
  */
 package org.opendaylight.controller.sal.binding.codegen.impl;
 
-import com.google.common.util.concurrent.ListeningExecutorService;
-import com.google.common.util.concurrent.MoreExecutors;
-import com.google.common.util.concurrent.ThreadFactoryBuilder;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
@@ -18,13 +15,19 @@ import java.util.concurrent.RejectedExecutionHandler;
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
+
 import javassist.ClassPool;
+
 import org.apache.commons.lang3.StringUtils;
 import org.opendaylight.controller.sal.binding.codegen.RuntimeCodeGenerator;
 import org.opendaylight.controller.sal.binding.spi.NotificationInvokerFactory;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.google.common.util.concurrent.ListeningExecutorService;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
+
 public class SingletonHolder {
     private static final Logger logger = LoggerFactory.getLogger(SingletonHolder.class);
 
@@ -69,6 +72,8 @@ public class SingletonHolder {
             // occurs in RejectedExecutionHandler.
             // This impl saturates threadpool first, then queue. When both are full caller will get blocked.
             BlockingQueue<Runnable> queue = new LinkedBlockingQueue<Runnable>(queueSize) {
+                private static final long serialVersionUID = 1L;
+
                 @Override
                 public boolean offer(Runnable r) {
                     // ThreadPoolExecutor will spawn a new thread after core size is reached only if the queue.offer returns false.