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Posted to wsif-dev@ws.apache.org by "Luis Rivera (JIRA)" <ws...@ws.apache.org> on 2005/07/27 11:43:24 UTC
[jira] Updated: (WSIF-70) Axis Client crashes the applet unless new permissions are added to the policy file (or a custom security manager is used)
[ http://issues.apache.org/jira/browse/WSIF-70?page=all ]
Luis Rivera updated WSIF-70:
----------------------------
Attachment: ClassUtils.java
Luis,
We used applets with Axis and it was very tedious. The performance was very
bad due to all of the GET request originating from the classloaders as you
mention. One thing we did was to create a _Helper class for every class
that we used so that it actually could be found in the axis.jar file (e.g.
HashMap_Helper, Vector_Helper). These helper classes don't do anything
except exist so that the classloader doesn't try to go back to the server to
find them. We also hacked org.apache.axis.utils.ClassUtils so that it used
our helper classes instead of trying to find them (see attached).
We still could not eliminate all of the GET requests but they were reduced.
Good luck,
Mark
> Axis Client crashes the applet unless new permissions are added to the policy file (or a custom security manager is used)
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: WSIF-70
> URL: http://issues.apache.org/jira/browse/WSIF-70
> Project: Axis-WSIF
> Type: Bug
> Components: Basic Architecture
> Versions: current (nightly)
> Environment: WindowsXP, Sun jdk1.5.0_03 (running client inside an applet), Axis 1.2.1, commons-logging-1.0.4, commons-httpclient-3.0-rc3, using ant 1.6.5 and a laptop IBM Thinkpad R51
> Reporter: Luis Rivera
> Priority: Blocker
> Attachments: ClassUtils.java
>
> To solve the following kind of exceptions,
> ***********************************************************************************************************
> java.lang.ExceptionInInitializerError
> at org.apache.commons.discovery.jdk.JDKHooks.<clinit>(JDKHooks.java:75)
> at org.apache.commons.discovery.tools.DiscoverSingleton.find(DiscoverSingleton.java:412)
> at org.apache.commons.discovery.tools.DiscoverSingleton.find(DiscoverSingleton.java:378)
> at org.apache.axis.components.logger.LogFactory$1.run(LogFactory.java:45)
> at java.security.AccessController.doPrivileged(Native Method)
> at org.apache.axis.components.logger.LogFactory.getLogFactory(LogFactory.java:41)
> at org.apache.axis.components.logger.LogFactory.<clinit>(LogFactory.java:33)
> at org.apache.axis.handlers.BasicHandler.<clinit>(BasicHandler.java:43)
> at org.apache.axis.client.Service.getAxisClient(Service.java:103)
> at org.apache.axis.client.Service.<init>(Service.java:112)
> at vcas.gui.wsdl.VCASLocator.<init>(Unknown Source)
> at vcas.gui.vss.VSSApplet.init(Unknown Source)
> at sun.applet.AppletPanel.run(AppletPanel.java:374)
> at java.lang.Thread.run(Thread.java:595)
> Caused by: java.security.AccessControlException: access denied (java.lang.RuntimePermission createClassLoader)
> at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
> at java.security.AccessController.checkPermission(AccessController.java:427)
> at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
> at java.lang.SecurityManager.checkCreateClassLoader(SecurityManager.java:594)
> at java.lang.ClassLoader.<init>(ClassLoader.java:225)
> at org.apache.commons.discovery.jdk.PsuedoSystemClassLoader.<init>(PsuedoSystemClassLoader.java:73)
> at org.apache.commons.discovery.jdk.JDK12Hooks.findSystemClassLoader(JDK12Hooks.java:215)
> at org.apache.commons.discovery.jdk.JDK12Hooks.<clinit>(JDK12Hooks.java:73)
> ... 14 more
> *********************************************************************************************************************************
> I had to add the following permissions to a custom policy file.
> ********************************************************************************************************************************
> permission java.lang.RuntimePermission "createClassLoader";
> permission java.lang.RuntimePermission "getClassLoader";
> permission java.util.PropertyPermission "org.apache.commons.discovery.log.level", "read";
> permission java.util.PropertyPermission "axis.EngineConfigFactory","read";
> permission java.util.PropertyPermission "org.apache.axis.EngineConfigurationFactory","read";
> permission java.util.PropertyPermission "axis.ClientConfigFile","read";
> permission java.util.PropertyPermission "axis.ServerConfigFile","read";
> permission java.util.PropertyPermission "axis.xml.reuseParsers","read";
> permission java.util.PropertyPermission "axis.attachments.implementation","read";
> ********************************************************************************************************************************
> So, I see that part of the problem is appache commons logger and other libraries trying to read and write to files, including the commons logger used by axis. I wanted to know if there is a simple way to prevent this or if I there exist a version of the Axis library without these issues, so it can happily work inside the sandbox with the default permissions, I would be happy to try it.
> Thanks in advance,
> --Luis R.
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