[
https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16633937#comment-16633937
]
Akshay Gehi commented on BEANUTILS-509:
---------------------------------------
I see from your log files that you are using WrapDynaBean
{code:java}
"https-executor-threads - 83" #731 prio=5 os_prio=0 tid=0x00007fefa4367000
nid=0x4234 runnable [0x00007fef2a56c000]
java.lang.Thread.State: RUNNABLE
at java.util.WeakHashMap.get(WeakHashMap.java:403)
at
org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425)
at
org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:404)
at
org.apache.commons.beanutils.WrapDynaBean.getDynaClass(WrapDynaBean.java:230)
at org.apache.commons.beanutils.WrapDynaBean.<init>(WrapDynaBean.java:79)
at org.apache.commons.beanutils.WrapDynaBean.<init>(WrapDynaBean.java:61){code}
A workaround could be the following:
Use WrapDynaBean's 2 argument constructor and pass a cached instance of
WrapDynaClass yourself. Avoid calling createDynaClass
{code:java}
public WrapDynaBean(final Object instance, final WrapDynaClass cls) {
this.instance = instance;
this.dynaClass = (cls != null) ? cls : (WrapDynaClass) getDynaClass();
}
{code}
> WeakHashmap enters into infinite loop in WrapDynaClass.java
> -----------------------------------------------------------
>
> Key: BEANUTILS-509
> URL: https://issues.apache.org/jira/browse/BEANUTILS-509
> Project: Commons BeanUtils
> Issue Type: Bug
> Components: DynaBean
> Affects Versions: 1.8.2
> Reporter: sunil
> Priority: Major
> Attachments: console.log.backup
>
>
> We noticed that our application was using too much of CPU , all the 6 cores
> were used.
> On capturing the thread dump we saw that large number of threads were in the
> running state and in :
> at java.util.WeakHashMap.get(WeakHashMap.java:403)
> at
> org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425)
>
> So we are suspecting that the thread has entered into indefinite while loop
> and hogging all the CPU resources.
> I have attached the thread dump for reference.
>
> what is the solution for this issue?
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
