<b>note</b> <u>The full stack trace of the root cause is available in the Apache Tomcat/7.0.62 logs.</u></p><HR size="1" noshade="noshade"><h3>Apache Tomcat/7.0.62</h3></body></html>
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.alibaba.fastjson.JSON.toJSONString(JSON.java:418)
</pre></p>\r
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
<b>exception</b>
com.alibaba.fastjson.serializer.SerializeWriter.writeStringWithDoubleQuote(SerializeWriter.java:602)
<b>description</b> <u>The server encountered an internal error that prevented it from fulfilling this request.</u></p>\r
sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source)
com.alibaba.fastjson.serializer.SerializeWriter.writeStringWithDoubleQuote(SerializeWriter.java:868)
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)