最近应用服务器总时不时的报CPU 100%，，是多个CPU 100%。最后查出是aspectjweaver这个jar包中用到了HashMap是线程不安全的。本次事故总结就是第三方jar包也要时刻关注。
<2015-4-25 下午08时12分44秒 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 HTTP/1.1X-Forwarded-For: 10.124.19.6Accept: image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*Referer: ?pCount=1&pFlowKey=GMM_DataLabel_ForCSG&pAllFlag=false&pReturnURL=/web/gg/groupmaterial/audit/purchaseplan/CSGPurchasePlanAudit.jsp?pageNo=1|status=auditing|nodeString=null:null;GMM_DataLabel_ForCSG;000004|frameName=p_req_plan_window|labelType=20&pAdapterClass=CSGDataLabelForwardAdapter&pWorkFlowId=undefined&pAreaCode=undefined&pDisplayOpinionArea=false&pRequireOpinion=false&pShowRoleFilter=false&pFlag=undefined&pModulePath=gg/material&pSubmitCallback=loading()&pIsAsync=false&pIsProgress=undefined&pReadAllPage=undefinedAccept-Language: zh-CNUser-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 EmbeddedWB- 14.58 from: ; Mozilla/4.0(Compatible RogueCleanerEmbeddedWB- 14.58 from: ; 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)Content-Type: application/x-www-form-urlencodedAccept-Encoding: gzip, deflateContent-Length: 792Connection: Keep-AliveCache-Control: no-cacheCookie: 6E198C893C55D08419683DCDAA6E3463=07D9F9949578C1F56F881944EED7BF65; 6E198C893C55D084A63A0BBA80A8BB6C0379382D298AF80F=17D870ABAF8BB61086F2B509C258111A6A8D5FCAB9E3CB0E69E09E1EDECE27CB0379382D298AF80F; JSESSIONIDMINI=XdGCV7CFkqpvC2lhvxZg1ghmMBvfwnyzv7QLQGPGtSvgFlJSPvkL!-2010002315; JSESSIONIDIPMS=qnT2V7BTS1bnczD8VBXwGdX8xBgN451CLKrGKHsRnfkNM5P12RDQ!1786716604; ComtopSessionSID=<SNAID>gS9YV7BYzjN3TnFYHht3F8Tvhj7ZMZxc4ntSnc1vBTGcVDnLh9QL!64005734!1429963256371</SNAID>]", 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.jarpackage 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.jarpackage 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);}}
会让你的心态更平和更坦然，也会让你心无旁骛，更会让你的心灵得到解脱和抚慰。
