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There is a copuple of places in code where so-called double-checking pattern is used. Avoid it since there is a synchronization issue when using this pattern in Java (see http://www-128.ibm.com/developerworks/java/library/j-dcl.html).
Fixed. Replaced with static field initializer. Affected files: /cnd/modelimpl/src/org/netbeans/modules/cnd/modelimpl/cache/CacheManager.java /cnd/modelimpl/src/org/netbeans/modules/cnd/modelimpl/csm/core/CodeModelRequestProcessor.java /cnd/modelimpl/src/org/netbeans/modules/cnd/modelimpl/csm/core/Notificator.java /cnd/modelimpl/src/org/netbeans/modules/cnd/modelimpl/platform/ModelSupport.java /cnd/modelimpl/src/org/netbeans/modules/cnd/modelimpl/platform/ProjectListenerThread.java