Remove unnecessary underflow check in Forsetti

neo4j · Mar 8, 2016 · f6784c4 · f6784c4
1 parent 91b55f4
commit f6784c4
Showing 1 changed file with 4 additions and 11 deletions.
diff --git a/...ise/kernel/src/main/java/org/neo4j/kernel/impl/enterprise/lock/forseti/ForsetiClient.java b/...ise/kernel/src/main/java/org/neo4j/kernel/impl/enterprise/lock/forseti/ForsetiClient.java
@@ -708,22 +708,15 @@ private boolean releaseLocalLock( ResourceType type, long resourceId, PrimitiveL
 
         if ( lockCount > 1 )
         {
-            localLocks.put( resourceId, decrementExactToZero( lockCount ) );
+            localLocks.put( resourceId, lockCount - 1 );
             return true;
         }
         return false;
     }
 
-    private static int decrementExactToZero( int value )
-    {
-        if ( value == 0 )
-        {
-            throw new ArithmeticException();
-        }
-        return value - 1;
-    }
-
-    /** Attempt to upgrade a share lock to an exclusive lock, grabbing the share lock if we don't hold it. */
+    /**
+     * Attempt to upgrade a share lock to an exclusive lock, grabbing the share lock if we don't hold it.
+     **/
     private boolean tryUpgradeSharedToExclusive( ResourceType resourceType,
                                                  ConcurrentMap<Long,ForsetiLockManager.Lock> lockMap,
                                                  long resourceId, SharedLock sharedLock )