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From "Adam Walczak (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-1605) 5.0.0: applet fails to initialize with default log4j.properties.
Date Fri, 11 Dec 2009 11:25:52 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-1605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=56390#action_56390
] 

Adam Walczak commented on AMQ-1605:
-----------------------------------

'@ Manuel Garcia: Thats right.

I'm using ActiveMQ 5.3 in my applets and it works. The same exception happens the I forget
to sign my jars. When I sign then every thing work just fine.

I think we can close this issue.

> 5.0.0: applet fails to initialize with default log4j.properties.
> ----------------------------------------------------------------
>
>                 Key: AMQ-1605
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1605
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: JMS client
>    Affects Versions: 5.0.0
>         Environment: jre 1.6.0_03 applet on both firefox and msie.
>            Reporter: Bear Giles
>             Fix For: 5.4.0
>
>
> We are unable to create a JMS-aware applet because of an initialization error in ActiveMQConnectionFactory/ActiveMQConnection.
 My research suggests that the problem is due to a static logger instance and a default log4j.properties
file that contains an appender that is inappropriate (as in, throws security exceptions) in
applets.
> java.lang.ExceptionInInitializerError
>             at org.apache.activemq.ActiveMQConnection.<clinit>(ActiveMQConnection.java:106)
>             at com.si.applet.JmsApplet.<init>(JmsApplet.java:36)
>             at com.si.applet.ProducerConsumerApplet.<init>(ProducerConsumerApplet.java:36)
>             at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>             at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
>             at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
>             at java.lang.reflect.Constructor.newInstance(Unknown Source)
>             at java.lang.Class.newInstance0(Unknown Source)
>             at java.lang.Class.newInstance(Unknown Source)
>             at sun.applet.AppletPanel.createApplet(Unknown Source)
>             at sun.plugin.AppletViewer.createApplet(Unknown Source)
>             at sun.applet.AppletPanel.runLoader(Unknown Source)
>             at sun.applet.AppletPanel.run(Unknown Source)
>             at java.lang.Thread.run(Unknown Source)
> Caused by: java.security.AccessControlException: access denied (java.util.PropertyPermission
org.apache.commons.logging.LogFactory.HashtableImpl read)
>             at java.security.AccessControlContext.checkPermission(Unknown Source)
>             at java.security.AccessController.checkPermission(Unknown Source)
>             at java.lang.SecurityManager.checkPermission(Unknown Source)
>             at java.lang.SecurityManager.checkPropertyAccess(Unknown Source)
>             at java.lang.System.getProperty(Unknown Source)
>             at org.apache.commons.logging.LogFactory.createFactoryStore(LogFactory.java:320)
>             at org.apache.commons.logging.LogFactory.<clinit>(LogFactory.java:1725)
>             ... 14 more 

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