8:16 a.m.
[
https://jira.jboss.org/browse/JBAS-8369?page=com.atlassian.jira.plugin.sy...
]
Remy Maucherat resolved JBAS-8369.
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Fix Version/s: 6.0.0.CR1
Resolution: Out of Date
At some point, it was believed that JSP pages were a valid injection target (they are not,
the EE spec specifically forbids it), thus requiring adding "dynamic" bean
support to the injection code. As I look into the code there is indeed a sync issue. To
fix it, all you need to do it drop the line
dynamicClassLoaders.add("...JasperLoader"); from TomcatInjectionContainer.
AS 6 did already remove injection for JSP pages.
JBoss AS CPU loop - incorrect synchronization on HashMap?
---------------------------------------------------------
Key: JBAS-8369
URL: https://jira.jboss.org/browse/JBAS-8369
Project: JBoss Application Server
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: Web (Tomcat) service
Affects Versions: JBossAS-5.1.0.GA
Environment: SUSE Linux 2.6.27.19-5-default #1 SMP 2009-02-28 04:40:21 +0100
x86_64 x86_64 x86_64 GNU/Linux
Reporter: Stephen Potter
Assignee: Remy Maucherat
Fix For: 6.0.0.CR1
Web application becomes unresponsive. JBoss java CPU at 340%. jstack shows 3 JBoss web
threads in HashMap.get suggesting that the cause is incorrectly synchronized use of a
HashMap. Extract of stack dump:
"ajp-127.0.0.1-50113-55" daemon prio=10 tid=0x000000004c364800 nid=0x4f1
runnable [0x00007f6f09cd7000]
java.lang.Thread.State: RUNNABLE
at java.util.HashMap.get(HashMap.java:303)
at org.jboss.injection.InjectionUtil.collapseXmlMethodInjectors(InjectionUtil.java:71)
at org.jboss.injection.InjectionUtil.collapseXmlMethodInjectors(InjectionUtil.java:92)
at org.jboss.injection.InjectionUtil.collapseXmlMethodInjectors(InjectionUtil.java:92)
at
org.jboss.web.tomcat.service.injection.TomcatInjectionUtils.processDynamicBeanAnnotations(TomcatInjectionUtils.java:59)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.processAnnotations(TomcatInjectionContainer.java:407)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.processDynamicBeanAnnotations(TomcatInjectionContainer.java:382)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:274)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:265)
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:145)
- locked <0x00007f6f8d353200> (a org.apache.jasper.servlet.JspServletWrapper)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
. . . . . . . . . . . . .
"ajp-127.0.0.1-50113-15" daemon prio=10 tid=0x000000005caa6800 nid=0x15f2
runnable [0x00007f6f4073d000]
java.lang.Thread.State: RUNNABLE
at java.util.HashMap.get(HashMap.java:303)
at org.jboss.injection.InjectionUtil.collapseXmlMethodInjectors(InjectionUtil.java:71)
at org.jboss.injection.InjectionUtil.collapseXmlMethodInjectors(InjectionUtil.java:92)
at org.jboss.injection.InjectionUtil.collapseXmlMethodInjectors(InjectionUtil.java:92)
at
org.jboss.web.tomcat.service.injection.TomcatInjectionUtils.processDynamicBeanAnnotations(TomcatInjectionUtils.java:59)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.processAnnotations(TomcatInjectionContainer.java:407)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.processDynamicBeanAnnotations(TomcatInjectionContainer.java:382)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:274)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:265)
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:145)
- locked <0x00007f6fd8a886b0> (a org.apache.jasper.servlet.JspServletWrapper)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
. . . . . . . . . . . . .
"ajp-127.0.0.1-50113-6" daemon prio=10 tid=0x00000000418f0000 nid=0x25d7
runnable [0x00007f6f41045000]
java.lang.Thread.State: RUNNABLE
at java.util.HashMap.get(HashMap.java:303)
at org.jboss.injection.InjectionUtil.collapseXmlMethodInjectors(InjectionUtil.java:71)
at org.jboss.injection.InjectionUtil.collapseXmlMethodInjectors(InjectionUtil.java:92)
at org.jboss.injection.InjectionUtil.collapseXmlMethodInjectors(InjectionUtil.java:92)
at
org.jboss.web.tomcat.service.injection.TomcatInjectionUtils.processDynamicBeanAnnotations(TomcatInjectionUtils.java:59)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.processAnnotations(TomcatInjectionContainer.java:407)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.processDynamicBeanAnnotations(TomcatInjectionContainer.java:382)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:274)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:265)
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:145)
- locked <0x00007f6fd40a01b8> (a org.apache.jasper.servlet.JspServletWrapper)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
. . . . . . . . . . . . .
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