[jboss-user] [JBossWS] - Resteasy, handling and logging of WebApplicationException

jrinderle do-not-reply at jboss.com
Thu May 28 13:07:49 EDT 2009 

Resteasy logs a stracktrace for all WebApplicationExceptions, which is not what I was expecting. My expectation was that Resteasy would catch this exception and return an appropriate response, but not log the exception. This creates a lot of output in the server logs.

* What is the most appropriate way to specify a response status? I could return Response but it seems cleaner to return a specific type and throw WebApplicationException for errors.

I created the following test case:


  | 	@GET
  | 	@Path("/status/{code}")
  | 	public String getStatus(@PathParam("code") int statusCode) {
  | 		throw new WebApplicationException(statusCode);
  | 	}
  | 

No matter what code I specify, the exception stack trace is logged to STDERR and I get the JBossWeb default error page back (even if I modify the code to specify no content).

* This behavior caused me to question my understanding. Should I not specify a response status by throwing a WebApplicationException? Should I instead return Response or use a custom exception with an exception mapper? In a production environment I do not need to log a stack trace for 401, 404, etc.

* Is it possible to disable the default error page and return an empty response? I tried changing the test case to throw new WebApplicationException(Response.noContent().status(statusCode).build()); but I still get default error page.

* I was also surprised to see the exception logged to STDERR. The documentation says that Resteasy uses slf4j configured or log4j. Perhaps I have something configured incorrectly?

I have tested this behavior with Resteasy 1.0.2GA and 1.1RC2. I am running on JBoss 4.2.3.GA. 

When I request this resource with /status/401, I get the following response (output is from curl). 


  | < HTTP/1.1 401 Unauthorized
  | < Date: Thu, 28 May 2009 16:36:38 GMT
  | < Server: Apache
  | < Content-Length: 948
  | < Content-Type: text/html;charset=utf-8
  | * Connection #0 to host localhost left intact
  | * Closing connection #0
  | <html><head><title>JBossWeb/2.0.1.GA - Error report</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>HTTP Status 401 - </h1><HR size="1" noshade="noshade"><p><b>type</b> Status report</p><p><b>message</b> <u></u></p><p><b>description</b> <u>This request requires HTTP authentication ().</u></p><HR size="1" noshade="noshade"><h3>JBossWeb/2.0.1.GA</h3></body></html>
  | 

And the following exception is logged (I sanitized my class and package name, line 74 corresponds to the exception thrown above):


  | 2009-05-28 12:38:42,883 ERROR [STDERR] 147486 [ajp-127.0.0.1-8009-11] ERROR org.jboss.resteasy.core.SynchronousDispatcher - failed t
  | o execute
  | 2009-05-28 12:38:42,883 ERROR [STDERR] javax.ws.rs.WebApplicationException
  | 2009-05-28 12:38:42,883 ERROR [STDERR]  at my.test.app.MyResource.getSessionDetails(MyResource.ja
  | va:74)
  | 2009-05-28 12:38:42,883 ERROR [STDERR]  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 2009-05-28 12:38:42,884 ERROR [STDERR]  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  | 2009-05-28 12:38:42,884 ERROR [STDERR]  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 2009-05-28 12:38:42,884 ERROR [STDERR]  at java.lang.reflect.Method.invoke(Method.java:597)
  | 2009-05-28 12:38:42,884 ERROR [STDERR]  at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:119)
  | 2009-05-28 12:38:42,884 ERROR [STDERR]  at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:211)
  | 2009-05-28 12:38:42,884 ERROR [STDERR]  at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:176)
  | 2009-05-28 12:38:42,884 ERROR [STDERR]  at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:166)
  | 2009-05-28 12:38:42,884 ERROR [STDERR]  at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
  | 2009-05-28 12:38:42,884 ERROR [STDERR]  at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:160)
  | 2009-05-28 12:38:42,885 ERROR [STDERR]  at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispat
  | cher.java:113)
  | 2009-05-28 12:38:42,885 ERROR [STDERR]  at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispat
  | cher.java:69)
  | 2009-05-28 12:38:42,885 ERROR [STDERR]  at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
  | 2009-05-28 12:38:42,885 ERROR [STDERR]  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
  | ava:290)
  | 2009-05-28 12:38:42,885 ERROR [STDERR]  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  | 2009-05-28 12:38:42,885 ERROR [STDERR]  at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  | 2009-05-28 12:38:42,885 ERROR [STDERR]  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
  | ava:235)
  | 2009-05-28 12:38:42,885 ERROR [STDERR]  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  | 2009-05-28 12:38:42,886 ERROR [STDERR]  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
  | 2009-05-28 12:38:42,886 ERROR [STDERR]  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
  | 2009-05-28 12:38:42,886 ERROR [STDERR]  at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.ja
  | va:182)
  | 2009-05-28 12:38:42,886 ERROR [STDERR]  at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
  | 2009-05-28 12:38:42,886 ERROR [STDERR]  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  | 2009-05-28 12:38:42,886 ERROR [STDERR]  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
  | 2009-05-28 12:38:42,886 ERROR [STDERR]  at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:
  | 157)
  | 2009-05-28 12:38:42,886 ERROR [STDERR]  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
  | 2009-05-28 12:38:42,886 ERROR [STDERR]  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
  | 2009-05-28 12:38:42,887 ERROR [STDERR]  at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:437)
  | 2009-05-28 12:38:42,887 ERROR [STDERR]  at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:366)
  | 2009-05-28 12:38:42,887 ERROR [STDERR]  at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
  | 2009-05-28 12:38:42,887 ERROR [STDERR]  at java.lang.Thread.run(Thread.java:619)
  | 

SynchronousDispatcher.java:324:

if (!(wae instanceof NoLogWebApplicationException)) logger.error("failed to execute", wae);

My web.xml is as follows:


  | <?xml version="1.0" encoding="UTF-8"?>
  | <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  | 	<context-param>
  | 		<param-name>resteasy.scan</param-name>
  | 		<param-value>true</param-value>
  | 	</context-param>
  | 	<listener>
  | 		<listener-class>org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap</listener-class>
  | 	</listener>
  | 	<servlet>
  | 		<servlet-name>RESTeasy</servlet-name>
  | 		<servlet-class>org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher</servlet-class>
  | 	</servlet>
  | 	<servlet-mapping>
  | 		<servlet-name>RESTeasy</servlet-name>
  | 		<url-pattern>/*</url-pattern>
  | 	</servlet-mapping>
  | </web-app>
  | 

Thank you for your help!

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