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java.lang.NullPointerException: 	at com.safenet.replication.util.BulletinBoardWriter.write(Unknown Source)	at com.safenet.replication.util.BulletinBoardWriter.debug(Unknown Source)	at com.ns.common.event.UpdateSiteImageProperties.main(UpdateSiteImageProperties.java:23)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.apache.tools.ant.taskdefs.ExecuteJava.run(ExecuteJava.java:217)	at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:152)	at org.apache.tools.ant.taskdefs.Java.run(Java.java:771)	at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:221)	at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:135)	at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108)	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)	at org.apache.tools.ant.Task.perform(Task.java:348)	at org.apache.tools.ant.Target.execute(Target.java:435)	at org.apache.tools.ant.Target.performTasks(Target.java:456)	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1393)	at org.apache.tools.ant.Project.executeTarget(Project.java:1364)	at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)	at org.apache.tools.ant.Project.executeTargets(Project.java:1248)	at org.apache.tools.ant.Main.runBuild(Main.java:851)	at org.apache.tools.ant.Main.startAnt(Main.java:235)	at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)	at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)