I can see why it is being deployed twice when autoDeploy="true" as that is the job of the auto deployer (although I think it should check to see if a web application is already deployed) but I can't see why it happens when autoDeploy="false". I was sufficiently shocked by this that I tried it several times and each time it deployed twice.
Shapira, Yoav wrote:
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]
........
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you.
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you.
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
