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java.lang.IllegalArgumentException: InputStream cannot be null	at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)	at org.apache.cactus.integration.ant.deployment.application.ApplicationXmlIo.parseApplicationXml(ApplicationXmlIo.java:152)	at org.apache.cactus.integration.ant.deployment.application.DefaultEarArchive.getApplicationXml(DefaultEarArchive.java:89)	at org.apache.cactus.integration.ant.deployment.EarParser.getUriOfCactifiedWebModule(EarParser.java:161)	at org.apache.cactus.integration.ant.deployment.EarParser.parse(EarParser.java:59)	at org.apache.cactus.integration.ant.CactusTask.execute(CactusTask.java:139)	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:618)	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:357)	at org.apache.tools.ant.Target.performTasks(Target.java:385)	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)	at org.apache.tools.ant.Project.executeTarget(Project.java:1306)	at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)	at org.apache.tools.ant.Project.executeTargets(Project.java:1189)	at org.apache.tools.ant.Main.runBuild(Main.java:758)	at org.apache.tools.ant.Main.startAnt(Main.java:217)	at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)	at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)