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Subject: Re: headless mode in tomcat
To: Tomcat Users List <users@tomcat.apache.org>
References: <CAE=UTzq-k-1Ej8cB_KMR8dx5Y6L8G+vuFPB-xF=ODgqt1L3HDA@mail.gmail.com>
From: Christopher Schultz <chris@christopherschultz.net>
Message-id: <62836d92-309f-e9f9-a9a7-2505a3381437@christopherschultz.net>
Date: Tue, 09 Aug 2016 14:49:29 -0400
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XMing,

On 8/3/16 4:50 AM, XMing wrote:
> I've add the following line to setenv.sh in tomcat bin directory.
> 
> export CATALINA_OPTS="$CATALINA_OPTS  -Djava.awt.headless=true"

This shouldn't usually be necessary. What happens if you don't set
"headless" mode?

> I have some image processing code in spring bean which runs well at
> the first time.
> 
> After some time,let me say 1 or 2 days, exception occurs.  Any clue
> would be appreciated.
> 
> Env detail: OS : Ubuntu 14.10 Server version: Apache Tomcat/7.0.63 
> Server built:   Jun 30 2015 08:08:33 UTC Server number:  7.0.63.0 
> OS Name:        Linux OS Version:     3.19.0-59-generic 
> Architecture:   amd64 JVM Version:    1.7.0_79-b15 JVM Vendor:
> Oracle Corporation
> 
> 
> Here is the exception message: 
> ========================================== HTTP/1.1 500 Internal
> Server Error Server: Apache-Coyote/1.1 Set-Cookie:
> JSESSIONID=145E29B2CF34304B36EC686F20106B58; Path=/; HttpOnly 
> Content-Type: text/html;charset=utf-8 Content-Language: en 
> Content-Length: 5261 Date: Wed, 03 Aug 2016 08:04:07 GMT 
> Connection: close
> 
> <html><head><title>Apache Tomcat/7.0.63 - Error
> report</title><style><!--H1 
> {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525
D76;font-size:22px;}
>
> 
H2
> {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525
D76;font-size:16px;}
>
> 
H3
> {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525
D76;font-size:14px;}
>
> 
BODY
> {font-family:Tahoma,Arial,sans-serif;color:black;background-color:whit
e;}
> B 
> {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525
D76;}
>
> 
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 500 - Handler processing failed;
> nested exception is java.lang.NoClassDefFoundError: Could not
> initialize class java.awt.image.BufferedImage</h1><HR size="1" 
> noshade="noshade"><p><b>type</b> Exception
> report</p><p><b>message</b> <u>Handler processing failed; nested
> exception is java.lang.NoClassDefFoundError: Could not initialize
> class java.awt.image.BufferedImage</u></p><p><b>description</b>
> <u>The server encountered an internal error that prevented it from
> fulfilling this request.</u></p><p><b>exception</b> 
> <pre>org.springframework.web.util.NestedServletException: Handler 
> processing failed; nested exception is
> java.lang.NoClassDefFoundError: Could not initialize class
> java.awt.image.BufferedImage 
> org.springframework.web.servlet.DispatcherServlet.triggerAfterCompleti
onWithError(DispatcherServlet.java:1303)
>
> 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherS
ervlet.java:977)
> org.springframework.web.servlet.DispatcherServlet.doService(Dispatcher
Servlet.java:893)
>
> 
org.springframework.web.servlet.FrameworkServlet.processRequest(Framewor
kServlet.java:966)
> org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServl
et.java:868)
>
> 
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
> org.springframework.web.servlet.FrameworkServlet.service(FrameworkServ
let.java:842)
>
> 
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
>
> 
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(
CharacterEncodingFilter.java:85)
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRe
questFilter.java:107)
>
> 
</pre></p><p><b>root cause</b> <pre>java.lang.NoClassDefFoundError: Coul
d
> not initialize class java.awt.image.BufferedImage 
> com.qqm.common.util.QRCodeUtil.createQRImage(QRCodeUtil.java:70) 
> com.qqm.api.service.business.app.v3.impl.V3InvitationBizServiceImpl.ge
tQrcodeInfo(V3InvitationBizServiceImpl.java:389)
>
> 
com.qqm.api.service.business.app.v3.impl.V3InvitationBizServiceImpl$$Fas
tClassBySpringCGLIB$$78bdc775.invoke(&lt;generated&gt;)
> org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:20
4)
>
> 
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedIntercepto
r.intercept(CglibAopProxy.java:649)
> com.qqm.api.service.business.app.v3.impl.V3InvitationBizServiceImpl$$E
nhancerBySpringCGLIB$$5ab5e2f0.getQrcodeInfo(&lt;generated&gt;)
>
> 
com.qqm.api.action.app.app3.InvitationAction.getQrcodeInfo(InvitationAct
ion.java:80)
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.j
ava:57)
>
> 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:43)
> java.lang.reflect.Method.invoke(Method.java:606) 
> org.springframework.web.method.support.InvocableHandlerMethod.doInvoke
(InvocableHandlerMethod.java:221)
>
> 
org.springframework.web.method.support.InvocableHandlerMethod.invokeForR
equest(InvocableHandlerMethod.java:137)
> org.springframework.web.servlet.mvc.method.annotation.ServletInvocable
HandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
>
> 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHand
lerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:776)
> org.springframework.web.servlet.mvc.method.annotation.RequestMappingHa
ndlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
>
> 
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.
handle(AbstractHandlerMethodAdapter.java:85)
> org.springframework.web.servlet.DispatcherServlet.doDispatch(Dispatche
rServlet.java:959)
>
> 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherSe
rvlet.java:893)
> org.springframework.web.servlet.FrameworkServlet.processRequest(Framew
orkServlet.java:966)
>
> 
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet
.java:868)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:650) 
> org.springframework.web.servlet.FrameworkServlet.service(FrameworkServ
let.java:842)
>
> 
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
>
> 
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(
CharacterEncodingFilter.java:85)
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRe
questFilter.java:107)
>
> 
</pre></p><p><b>note</b> <u>The full stack trace of the root cause is
> available in the Apache Tomcat/7.0.63 logs.</u></p><HR size="1" 
> noshade="noshade"><h3>Apache Tomcat/7.0.63</h3></body></html> 
> ==========================================

You need to look at the log file to see the "real" root cause: it's
not displayed here in the abridged error message.

- -chris
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