，
<html><head><title>ApacheTomcat/7.0.62-Errorreport</title><style><!--H1{font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;}H2{font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;}H3{font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;}BODY{font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;}B{font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;}P{font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A{color:black;}A.name{color:black;}HR{color:#525D76;}--></style></head><body><h1>HTTPStatus500-Nullinputbuffer</h1><HRsize="1"noshade="noshade">\r
<b>type</b>Exceptionreport</p>\r
<b>message</b><u>Nullinputbuffer</u></p>\r
<b>description</b><u>Theserverencounteredaninternalerrorthatpreventeditfromfulfillingthisrequest.</u></p>\r
<b>exception</b>
java.lang.IllegalArgumentException:Nullinputbuffer
javax.crypto.Cipher.doFinal(Cipher.java:2127)
com.lib.Encrypt.decrypt(Encrypt.java:29)
com.lib.DecryptUtil.fileDecrypt(DecryptUtil.java:36)
com.encrypt.Action.execute(Action.java:59)
sun.reflect.GeneratedMethodAccessor38.invoke(UnknownSource)
sun.reflect.DelegatingMethodAccessorImpl.invoke(UnknownSource)
java.lang.reflect.Method.invoke(UnknownSource)
com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452)
com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)