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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(	at org.apache.cactus.integration.ant.deployment.application.DefaultEarArchive.getApplicationXml(	at org.apache.cactus.integration.ant.deployment.EarParser.getUriOfCactifiedWebModule(	at org.apache.cactus.integration.ant.deployment.EarParser.parse(	at org.apache.cactus.integration.ant.CactusTask.execute(	at	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(	at sun.reflect.DelegatingMethodAccessorImpl.invoke(	at java.lang.reflect.Method.invoke(	at	at	at	at	at	at	at	at	at	at	at	at