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This bug was originally marked as duplicate of bug 220392, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 7.3 Beta 2 (Build 201211062253) VM: Java HotSpot(TM) 64-Bit Server VM, 21.0-b17, Java(TM) SE Runtime Environment, 1.7.0-b147 OS: Linux User Comments: szmitek: Closing C++ project. Problem with running C++ project Stacktrace: java.lang.NullPointerException at org.netbeans.modules.cnd.makeproject.api.configurations.MakeConfigurationDescriptor.ConfigurationPrivateXMLWriter(MakeConfigurationDescriptor.java:1325) at org.netbeans.modules.cnd.makeproject.api.configurations.MakeConfigurationDescriptor.saveWorker(MakeConfigurationDescriptor.java:1180) at org.netbeans.modules.cnd.makeproject.api.configurations.MakeConfigurationDescriptor.access$400(MakeConfigurationDescriptor.java:125) at org.netbeans.modules.cnd.makeproject.api.configurations.MakeConfigurationDescriptor$SaveRunnable.run(MakeConfigurationDescriptor.java:1082) at org.netbeans.modules.cnd.makeproject.api.configurations.MakeConfigurationDescriptor.save(MakeConfigurationDescriptor.java:1029) at org.netbeans.modules.cnd.makeproject.api.configurations.MakeConfigurationDescriptor.save(MakeConfigurationDescriptor.java:1016)
Created attachment 127531 [details] stacktrace
http://hg.netbeans.org/releases/rev/5842aa16b155
Integrated into 'main-golden', will be available in build *201211130001* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main-golden/rev/5842aa16b155 User: Vladimir Voskresensky <vv159170@netbeans.org> Log: fixed #221880 - NullPointerException at org.netbeans.modules.cnd.makeproject.api.configurations.MakeConfigurationDescriptor.ConfigurationPrivateXMLWriter - check null in all places