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java.lang.NoClassDefFoundError: 	at sun.misc.Unsafe.ensureClassInitialized(Native Method)	at sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:20)	at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:122)	at java.lang.reflect.Field.acquireFieldAccessor(Field.java:779)	at java.lang.reflect.Field.getFieldAccessor(Field.java:760)	at java.lang.reflect.Field.getLong(Field.java:398)	at java.io.ObjectStreamClass.getDeclaredSUID(ObjectStreamClass.java:1478)	at java.io.ObjectStreamClass.access$400(ObjectStreamClass.java:47)	at java.io.ObjectStreamClass$3.run(ObjectStreamClass.java:335)	at java.security.AccessController.doPrivileged(Native Method)	at java.io.ObjectStreamClass.(ObjectStreamClass.java:333)	at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:253)	at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:453)	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1521)	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1435)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1626)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1845)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1769)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)	at java.util.ArrayList.readObject(ArrayList.java:547)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:838)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1746)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1845)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1769)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1845)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1769)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)	at dori.jasper.engine.util.JRLoader.loadObject(JRLoader.java:134)	at dori.jasper.engine.JasperFillManager.fillReport(JasperFillManager.java:288)	at dori.jasper.engine.JasperRunManager.runReportToPdf(JasperRunManager.java:281)	at com.obas.servlets.ReportManager.runReport(ReportManager.java:169)	at com.obas.servlets.MainServlet.doReport(MainServlet.java:338)	at com.obas.servlets.MainServlet.doPost(MainServlet.java:293)	at com.obas.servlets.MainServlet.doGet(MainServlet.java:199)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)	at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2422)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)	at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:163)	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)	at org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:457)	at org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:576)	at java.lang.Thread.run(Thread.java:534)