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java.lang.NullPointerException: null	at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:325)	at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:182)	at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262)	at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104)	at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:103)	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:152)	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403)	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:158)