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From "Guangtai Liang (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-3782) An incomplete fix for the NPE bugs in Directory.java
Date Tue, 14 Feb 2012 13:11:00 GMT
An incomplete fix for the NPE bugs in Directory.java
----------------------------------------------------

                 Key: LUCENE-3782
                 URL: https://issues.apache.org/jira/browse/LUCENE-3782
             Project: Lucene - Java
          Issue Type: Bug
          Components: core/store
    Affects Versions: 3.0
            Reporter: Guangtai Liang
            Priority: Critical


The fix revision 499089 was aimed to remove an NPE bug (LUCENE-773) on the value  of  "lockFactory
" in the method "clearLock" of the file "/lucene/java/trunk/src/java/org/apache/lucene/store/Directory.java"
, but it is incomplete. 

Since the value  "lockFactory " could be null during the runtime execution, its value should
also be null-checked before being dereferenced in other methods. 

The buggy code locations the same fix needs to be applied at are as bellows: 
 
Line 106 of the methods "doc()" , and "freq": 

          public Lock makeLock(String name) {
[Line 106]      return lockFactory.makeLock(name);

          }

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