CPU 100% and HashMap threads are caused by insecure hashmap threads.
Recently, the Application Server Reports CPU usage of 100% from time to time, which is 100% for multiple CPUs. Finally, it is found that the HashMap used in the jar package aspectjweaver is thread unsafe. The conclusion of this accident is that third-party jar packages should always be concerned.
<08:12:44 P.M. CST> <Error> <WebLogicServer> <BEA-000337> <[STUCK] ExecuteThread: '13' for queue: 'weblogic. kernel. default (self-tuning) 'has been busy for "657" seconds working on the request "weblogic. servlet. internal. servletRequestImpl @ 49f969a [
POST/web/gg/workflow/fore/DoSpecialForeSubmit. jsp? IsProgress = false https/1.1
X-Forwarded-For: 10.124.19.6
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Referer: http: // 10.150.140.20/web/gg/material/workflow/fore/SelForePersons. jsp? PCount = 1 & pFlowKey = GMM_DataLabel_ForCSG & pAllFlag = false & pReturnURL =/web/gg/groupmaterial/audit/purchaseplan/csgpchasureplanaudit. jsp? PageNo = 1 | status = auditing | nodeString = null: null; GMM_DataLabel_ForCSG; 000004 | frameName = bytes | labelType = 20 & pAdapterClass = bytes & pWorkFlowId = undefined & pAreaCode = undefined & Signature = false & pShowRoleFilter = false & pFlag = undefined & pModulePath = gg/material & pSubmitCallback = loading () & pIsAsync = false & pIsProgress = undefined & pReadAllPage = undefined
Accept-Language: zh-CN
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; mozilla/4.0 (Compatible Mozilla/4.0 (Compatible-EmbeddedWB 14.58 http://bsalsa.com/EmbeddedWB-14.58 from: http://bsalsa.com/; Mozilla/4.0 (Compatible RogueCleanerEmbeddedWB-14.58 from: http://bsalsa.com/; SLCC2 ;. net clr 2.0.50727 ;. net clr 3.5.30729 ;. net clr 3.0.30729; Media Center PC 6.0 ;. NET4.0C ;. NET4.0E; BRI/2; Tablet PC 2.0; InfoPath.3)
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Connection: Keep-Alive
Cache-Control: no-cache
Cookie: 6E198C893C55D08419683DCDAA6E3463 = 07D9F9949578C1F56F881944EED7BF65; priority = priority; JSESSIONIDMINI = priority! -2010002315; JSESSIONIDIPMS = qnT2V7BTS1bnczD8VBXwGdX8xBgN451CLKrGKHsRnfkNM5P12RDQ! 1786716604; ComtopSessionSID = <Snid> gS9YV7BYzjN3TnFYHht3F8Tvhj7ZMZxc4ntSnc1vBTGcVDnLh9QL! 64005734! 1429963256371 </snail ID>
] ", Which is more than the configured time (StuckThreadMaxTime) of" 600 "seconds. Stack trace:
Java. util. WeakHashMap. getEntry (WeakHashMap. java: 383)
Java. util. WeakHashMap. containsKey (WeakHashMap. java: 369)
Com. bea. core. repackaged. aspectj. lang. reflect. AjTypeSystem. getAjType (AjTypeSystem. java: 37)
Com. bea. core. repackaged. springframework. aop. aspectj. annotation. AbstractAspectJAdvisorFactory. isAspect (AbstractAspectJAdvisorFactory. java: 113)
Com. bea. core. repackaged. springframework. aop. aspectj. annotation. BeanFactoryAspectJAdvisorsBuilder. buildAspectJAdvisors (BeanFactoryAspectJAdvisorsBuilder. java: 95)
Com. bea. core. repackaged. springframework. jee. intercept. InterceptionMetadata. addAspectJAdvisors (InterceptionMetadata. java: 835)
Com. bea. core. repackaged. springframework. jee. intercept. InterceptionMetadata. createProxyIfNecessary (InterceptionMetadata. java: 477)
Com. bea. core. repackaged. springframework. jee. intercept. InterceptionMetadata. createProxyIfNecessary (InterceptionMetadata. java: 410)
Com. bea. core. repackaged. springframework. jee. spi. EjbComponentCreatorBrokerImpl. invokeCreateProxyIfNecessary (EjbComponentCreatorBrokerImpl. java: 97)
Com. bea. core. repackaged. springframework. jee. spi. EjbComponentCreatorBrokerImpl. getBean (EjbComponentCreatorBrokerImpl. java: 53)
Weblogic. ejb. container. injection. EjbComponentCreatorImpl. getBean (EjbComponentCreatorImpl. java: 67)
Weblogic. ejb. container. manager. BaseEJBManager. createNewBeanInstance (BaseEJBManager. java: 216)
Weblogic. ejb. container. manager. BaseEJBManager. allocateBean (BaseEJBManager. java: 233)
Weblogic. ejb. container. manager. StatelessManager. createBean (StatelessManager. java: 303)
Weblogic. ejb. container. pool. StatelessSessionPool. createBean (StatelessSessionPool. java: 190)
Weblogic. ejb. container. pool. StatelessSessionPool. getBean (StatelessSessionPool. java: 121)
Weblogic. ejb. container. manager. StatelessManager. preInvoke (StatelessManager. java: 148)
Weblogic. ejb. container. internal. BaseRemoteObject. preInvoke (BaseRemoteObject. java: 227)
Weblogic. ejb. container. internal. StatelessRemoteObject. preInvoke (StatelessRemoteObject. java: 52)
Com. gg. masterdata. objecttrack. appservice. impl. ObjectTrackSes_gtdbkl_IObjectTrackServiceImpl.processingTrackRecord (ObjectTrackSes_gtdbkl_IObjectTrackServiceImpl.java: 899)
Com. gg. masterdata. objecttrack. appservice. impl. ObjectTrackSes_gtdbkl_IObjectTrackServiceImpl_CBV.processingTrackRecord (Unknown Source)
Sun. reflect. NativeMethodAccessorImpl. invoke0 (Native Method)
Com. bea. core. repackaged. aspectj. aspectjweaver_5.1.0.jar
Package com. bea. core. repackaged. aspectj. lang. reflect;
Import com. bea. core. repackaged. aspectj. internal. lang. reflect. AjTypeImpl;
Import java. lang. ref. WeakReference;
Import java. util. Map;
Import java. util. WeakHashMap;
Public class AjTypeSystem {
Private static Map <Class, WeakReference <AjType> ajTypes = new WeakHashMap ();
Public static <T> AjType <T> getAjType (Class <T> fromClass ){
If (ajTypes. containsKey (fromClass )){
WeakReference weakRefToAjType = (WeakReference) ajTypes
. Get (fromClass );
AjType theAjType = (AjType) weakRefToAjType. get ();
If (theAjType! = Null ){
Return theAjType;
}
TheAjType = new AjTypeImpl (fromClass );
AjTypes. put (fromClass, new WeakReference (theAjType ));
Return theAjType;
}
AjType theAjType = new AjTypeImpl (fromClass );
AjTypes. put (fromClass, new WeakReference (theAjType ));
Return theAjType;
}
}
Com. bea. core. repackaged. aspectj. aspectjweaver_5.3.0.jar
Package com. bea. core. repackaged. aspectj. lang. reflect;
Import com. bea. core. repackaged. aspectj. internal. lang. reflect. AjTypeImpl;
Import java. lang. ref. WeakReference;
Import java. util. Collections;
Import java. util. Map;
Import java. util. WeakHashMap;
Public class AjTypeSystem {
Private static Map <Class, WeakReference <AjType> ajTypes = Collections
. SynchronizedMap (new WeakHashMap ());
Public static <T> AjType <T> getAjType (Class <T> paramClass ){
WeakReference localWeakReference = (WeakReference) ajTypes
. Get (paramClass );
If (localWeakReference! = Null ){
LocalObject = (AjType) localWeakReference. get ();
If (localObject! = Null)
Return localObject;
LocalObject = new AjTypeImpl (paramClass );
AjTypes. put (paramClass, new WeakReference (localObject ));
Return localObject;
}
Object localObject = new AjTypeImpl (paramClass );
AjTypes. put (paramClass, new WeakReference (localObject ));
Return (AjType <T>) localObject );
}
}
