Hi, Yeah, it could be. A WAR packaging is not essential for this to happen. As long as autoDeploy and explicit declarations both exist, you'll get this..
Yoav Shapira Millennium Research Informatics >-----Original Message----- >From: Paul Wallace [mailto:[EMAIL PROTECTED] >Sent: Friday, June 11, 2004 12:02 AM >To: Tomcat Users List >Subject: RE: contextInitialized being called exactly twice > >Hi Yoav, > On the same note, I was experiencing the same frustration, but I >was not deploying any WAR. Could this be the reason for my 2 * >execution, even though I had not packaged my classes into a WAR? > >Many thanks > >Paul. > >Hi >I bet it's being called once for each time the context is deployed, and >the context is deployed twice because you have autoDeploy on AND an >explicit context declaration in your server.xml/conf directory/WAR. >Turn autoDeploy off and see what happens. > >(This would explain the static counter being 1: the counter is static >once per classloader repository, you have two of the same context at >different paths with different classloader repositories). > >Yoav Shapira >Millennium Research Informatics > > >>-----Original Message----- >>From: Graham Smith [mailto:[EMAIL PROTECTED] >>Sent: Thursday, June 10, 2004 12:32 PM >>To: [EMAIL PROTECTED] >>Subject: contextInitialized being called exactly twice >> >>Hi, >> >>I am absolutely stumped by this problem. For some reason that I can't >>fathom the contextInitialized method on a ServletContextListener I have >>in one of my web applications is being called twice. Normally this >isn't >>a problem since it only causes the load process to take longer but I >>have recently added a new section that starts a daemon thread and it >>this double call is causing two threads to be created. What is even >more >>bizarre is that I have tried using a static int to count the number of >>times the method is called but it always returns one. I suspected that >>it therefore must be created by a different class loader but a call to >>getClass().getClassLoader and a dump (see below) of information would >>seem to indicate that it is in fact the same class loader loading the >>class. I am using tomcat 5.0.25 on Linux with Java 1.4.2_04. I have >also >>performed a thread dump in order to check that it is _really_ being run >>twice and sure enough there are two copies of my thread running (again >>see extract below). >> >>Any help would be greatly appreciated. >> >>Graham >> >>ClassLoader dump: >>---------------------------------------------------- >>First time it is loaded >>---------------------------------------------------- >>ClassLoader: WebappClassLoader >> delegate: false >> repositories: >>----------> Parent Classloader: >>StandardClassLoader >> delegate: true >> repositories: >> file:/home/gms/dump/tomcat/shared/classes/ >>----------> Parent Classloader: >>StandardClassLoader >> delegate: true >> repositories: >> file:/home/gms/dump/tomcat/common/classes/ >> file:/home/gms/dump/tomcat/common/endorsed/xercesImpl.jar >> file:/home/gms/dump/tomcat/common/endorsed/xmlParserAPIs.jar >> file:/home/gms/dump/tomcat/common/lib/ant.jar >> file:/home/gms/dump/tomcat/common/lib/commons-collections.jar >> file:/home/gms/dump/tomcat/common/lib/commons-dbcp-1.1.jar >> file:/home/gms/dump/tomcat/common/lib/commons-el.jar >> file:/home/gms/dump/tomcat/common/lib/commons-pool-1.1.jar >> file:/home/gms/dump/tomcat/common/lib/jasper-compiler.jar >> file:/home/gms/dump/tomcat/common/lib/jasper-runtime.jar >> file:/home/gms/dump/tomcat/common/lib/jsp-api.jar >> file:/home/gms/dump/tomcat/common/lib/naming-common.jar >> file:/home/gms/dump/tomcat/common/lib/naming-factory.jar >> file:/home/gms/dump/tomcat/common/lib/naming-java.jar >> file:/home/gms/dump/tomcat/common/lib/naming-resources.jar >> file:/home/gms/dump/tomcat/common/lib/servlet-api.jar >>----------> Parent Classloader: >>[EMAIL PROTECTED] >> >> >>---------------------------------------------------- >>Second time it is loaded >>---------------------------------------------------- >> >>ClassLoader: WebappClassLoader >> delegate: false >> repositories: >>----------> Parent Classloader: >>StandardClassLoader >> delegate: true >> repositories: >> file:/home/gms/dump/tomcat/shared/classes/ >>----------> Parent Classloader: >>StandardClassLoader >> delegate: true >> repositories: >> file:/home/gms/dump/tomcat/common/classes/ >> file:/home/gms/dump/tomcat/common/endorsed/xercesImpl.jar >> file:/home/gms/dump/tomcat/common/endorsed/xmlParserAPIs.jar >> file:/home/gms/dump/tomcat/common/lib/ant.jar >> file:/home/gms/dump/tomcat/common/lib/commons-collections.jar >> file:/home/gms/dump/tomcat/common/lib/commons-dbcp-1.1.jar >> file:/home/gms/dump/tomcat/common/lib/commons-el.jar >> file:/home/gms/dump/tomcat/common/lib/commons-pool-1.1.jar >> file:/home/gms/dump/tomcat/common/lib/jasper-compiler.jar >> file:/home/gms/dump/tomcat/common/lib/jasper-runtime.jar >> file:/home/gms/dump/tomcat/common/lib/jsp-api.jar >> file:/home/gms/dump/tomcat/common/lib/naming-common.jar >> file:/home/gms/dump/tomcat/common/lib/naming-factory.jar >> file:/home/gms/dump/tomcat/common/lib/naming-java.jar >> file:/home/gms/dump/tomcat/common/lib/naming-resources.jar >> file:/home/gms/dump/tomcat/common/lib/servlet-api.jar >>----------> Parent Classloader: >>[EMAIL PROTECTED] >> >> >> >>---------------------------------------------------- >>Extract of thread dump >>---------------------------------------------------- >> >>...... >> >> >>"ContainerBackgroundProcessor[StandardEngine[Catalina]]" daemon prio=1 >>tid=0x0848eb98 nid=0x7d54 waiting on condition [4d90d000..4d90d854] >> at java.lang.Thread.sleep(Native Method) >> at >>org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.ru n >(Con >>tainerBase.java:1597) >> at java.lang.Thread.run(Thread.java:534) >> >>"category statistics generator" daemon prio=1 tid=0x082e6960 nid=0x7d54 >>waiting on condition [4e1de000..4e1de854] >> at java.lang.Thread.sleep(Native Method) >> at >>com.crazysquirrel.xfly.category.CategoryStats.run(CategoryStats.java:7 3 >) >> at java.lang.Thread.run(Thread.java:534) >> >>"directory cleaner" daemon prio=1 tid=0x0852dd30 nid=0x7d54 waiting on >>condition [4e15d000..4e15d854] >> at java.lang.Thread.sleep(Native Method) >> at >>com.crazysquirrel.xfly.web.DirectoryCleaner.run(DirectoryCleaner.java: 8 >0) >> at java.lang.Thread.run(Thread.java:534) >> >>"category statistics generator" daemon prio=1 tid=0x085072f8 nid=0x7d54 >>waiting on condition [4e0dc000..4e0dc854] >> at java.lang.Thread.sleep(Native Method) >> at >>com.crazysquirrel.xfly.category.CategoryStats.run(CategoryStats.java:7 3 >) >> at java.lang.Thread.run(Thread.java:534) >> >>"directory cleaner" daemon prio=1 tid=0x084e7ea8 nid=0x7d54 waiting on >>condition [4e05b000..4e05b854] >> at java.lang.Thread.sleep(Native Method) >> at >>com.crazysquirrel.xfly.web.DirectoryCleaner.run(DirectoryCleaner.java: 8 >0) >> at java.lang.Thread.run(Thread.java:534) >> >>"Signal Dispatcher" daemon prio=1 tid=0x08096a50 nid=0x7d54 waiting on >>condition [0..0] >> >>........ >> 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