12:08 p.m.
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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