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java.lang.NullPointerException: 	at com.m7.wide.project.artifact.ArtifactMgr.updateArtifact(Unknown Source)	at com.m7.wide.project.artifact.ArtifactMgr.B(Unknown Source)	at com.m7.wide.project.artifact.ArtifactMgr.access$000(Unknown Source)	at com.m7.wide.project.artifact.ArtifactMgr$3.process(Unknown Source)	at com.m7.wide.project.artifact.ArtifactMgr.processArtifactTask(Unknown Source)	at com.m7.wide.project.artifact.ArtifactMgr.endBatchModifications(Unknown Source)	at com.m7.wide.project.WebProject.B(Unknown Source)	at com.m7.wide.project.ProjectManager.endBacthModifications(Unknown Source)	at com.m7.wide.HostProjectMgr.fireBacthEndEvent(Unknown Source)	at com.m7.wide.HostProjectMgr.endBuilderEvent(Unknown Source)	at com.m7.wide.eclipse.NitroxBuilder.A(Unknown Source)	at com.m7.wide.eclipse.NitroxBuilder.build(Unknown Source)	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:593)	at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1038)	at org.eclipse.core.runtime.Platform.run(Platform.java:775)	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:168)	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:202)	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:231)	at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1038)	at org.eclipse.core.runtime.Platform.run(Platform.java:775)	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:234)	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:253)	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:282)	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:139)	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:200)	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:76)