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diff --git a/opendaylight/md-sal/sal-common-api/src/main/java/org/opendaylight/controller/md/sal/common/api/data/OptimisticLockFailedException.java b/opendaylight/md-sal/sal-common-api/src/main/java/org/opendaylight/controller/md/sal/common/api/data/OptimisticLockFailedException.java
new file mode 100644
index 0000000000..222289ab6c
--- /dev/null
+++ b/opendaylight/md-sal/sal-common-api/src/main/java/org/opendaylight/controller/md/sal/common/api/data/OptimisticLockFailedException.java
@@ -0,0 +1,34 @@
+package org.opendaylight.controller.md.sal.common.api.data;
+
+/**
+*
+* Failure of asynchronous transaction commit caused by failure
+* of optimistic locking.
+*
+* This exception is raised and returned when transaction commit
+* failed, because other transaction finished successfully
+* and modified same data as failed transaction.
+*
+*  Clients may recover from this error condition by
+*  retrieving current state and submitting new updated
+*  transaction.
+*
+*/
+public class OptimisticLockFailedException extends TransactionCommitFailedException {
+
+    private static final long serialVersionUID = 1L;
+
+    protected OptimisticLockFailedException(final String message, final Throwable cause, final boolean enableSuppression,
+            final boolean writableStackTrace) {
+        super(message, cause, enableSuppression, writableStackTrace);
+    }
+
+    public OptimisticLockFailedException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+
+    public OptimisticLockFailedException(final String message) {
+        super(message);
+    }
+
+}