RE: Applets--Could not get it working

Larry Lemons Wed, 16 Aug 2006 06:16:49 -0700

This isn't a signed certificate error, it is a missing class error message. One of your classes isn't being sent to the applet/browser. Do you have the jar file in which the Stub that is created for the WSDL included in the list of jar files for the applet? The applet tag that I use for the applet is the following:

<APPLET CODE='FileUpload.FileUpload' ARCHIVE='./fileupload/FileUpload.jar,./fileupload/support.jar,./fileupload/MY_STUB.jar' WIDTH='300' HEIGHT='300' ALIGN='bottom'>

The name of the jar file that contains my applet is FileUpload.jar, the name of the Stub jar file that was created by the JAVA2WSDL is called MY_STUB.jar, and I have another jar file for all the supporting classes used by AXIS all JARed up in a jar file called support.jar. Make sure you have all the necessary classes in your ARCHIVE attribute otherwise the applet will not have all the supporting classes to be able to do the Web Service connection and call.

What I would do is get the applet running as an application, then remove all the jar files from it's classpath, and see if it will run. If not, keep adding jar files to the classpath to remove the errors and when you have all the errors fixed, those are all the jar files that will need to be included in the ARCHIVE attribute in your APPLET tag.

Thank you,

Larry M. Lemons

(304) 726-4809 Ext. 4505

From: KALYAN [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 15, 2006 5:58 PM
To: axis-user@ws.apache.org
Subject: RE: Applets--Could not get it working

Its not a secure site. I had accepted the certificate that I created. But the applet works only if I modify the java.policy file.

Let me know if I should give more info.

Here is the error message I get.

Exception in thread "Thread-7" java.lang.NoClassDefFoundError: Could not initialize class org.apache.axis.client.AxisClient
    at org.apache.axis.client.Service.getAxisClient(Service.java:110)
    at org.apache.axis.client.Service.<init>(Service.java:119)
    at unitconverter.webserviceclient.UnitConverterServiceClient.getCategoryList(UnitConverterServiceClient.java:32)
    at unitconverter.panels.UnitConvertorPanel$2.run(UnitConvertorPanel.java:164)
Exception in thread "Thread-8" 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:110)
    at org.apache.axis.client.Service.<init>(Service.java:119)
    at unitconverter.webserviceclient.UnitConverterServiceClient.getUnitList(UnitConverterServiceClient.java:52)
    at unitconverter.panels.UnitConvertorPanel.updateUnit1and2Lists(UnitConvertorPanel.java:211)
    at unitconverter.panels.UnitConvertorPanel$3.run(UnitConvertorPanel.java:166)
Caused by: java.security.AccessControlException: access denied (java.lang.RuntimePermission createClassLoader)
    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.checkCreateClassLoader(Unknown Source)
    at java.lang.ClassLoader.<init>(Unknown Source)
    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)
    ... 13 more

Kalyan

Larry Lemons <[EMAIL PROTECTED]> wrote:

What error message are you getting? Is the site at which the web service is hosted a secure site? If the certificate for which the applet was signed is a trusted certificate or is allowed to run by the client, i.e. the client clicks on the run or allow, or OK button that would enable the applet to run, then it should run, unless there are other certificates involved in the process, i.e. one installed on the web services server.

Thank you,

Larry M. Lemons

(304) 726-4809 Ext. 4505

From: KALYAN [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 15, 2006 4:31 PM
To: axis-user@ws.apache.org
Subject: Applets--Could not get it working

Hi all,
Has anyone found the solution to using java applets as the client.

I could do it only this way.
1.) Sign the required jars
2.) Modify the java.policy file to
        grant {
                permission java.security.AllPermission;
        };
So the users would not want to modify the java.policy file.

Is there any solution for this problem. I would love to hear a solution.

I am using Axis 1.4

Thanks
Kalyan

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RE: Applets--Could not get it working

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