Opening Gantt Chart in Webdynpro throws Class not Found Exception

[Former Member]

Hi ,

I have encountered problem in opening Gantt chart in Webdynpro. Currently I am using JRE 1.7 version in my laptop and I am able to open the Gantt chart, but problem is other colleagues are facing the Error while opening Gantt.

Error is "Class not Found Exception "

  Error Descripton in  Java Console  is as follows

cache: Initialize resource manager: com.sun.deploy.cache.ResourceProviderImpl@da34f5

basic: Added progress listener: sun.plugin.util.ProgressMonitorAdapter@3a1e23

security: Expected Main URL: null

1. java.lang.ClassNotFoundException: com.sap.tc.webdynpro.ace.AcfApplet

at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)

at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)

at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)

at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)

at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)

at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

basic: load: class com.sap.tc.webdynpro.ace.AcfApplet not found.

1. java.lang.ClassNotFoundException: com.sap.tc.webdynpro.ace.AcfApplet

at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)

at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)

at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)

at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)

at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)

at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

basic: Removed progress listener: sun.plugin.util.ProgressMonitorAdapter@3a1e23

security: Reset deny session certificate store

Error should be unique to all users since server is same for all users that is what i feel. Browser security settings for Java in Control panel has restored to default with mine and all users.

Could any one help me regarding this ?

[dpitp · Accepted solution]

Hi,

I had the same problem and got it solved this way:

First, I followed this notes:

1925833

1926137

1742795

In Firefox etc. this helped me to solve the problem.

In IE11 I still had a viewing problem for graphics, which I solved by activating the Java Plug in IE.

In the IE-browser goto "Managing Add-ons" and activate the Java Plug-in.

Best regards

Darijo

[Former Member · Accepted solution]

Hi Pavlic,

Finally the Latest Note Version of 195833 has resolved my issue. No changes  i have done in the Java control panel , addons etc. Note along solved the issue.

Regards,
Ravikiran.K

[dpitp]

Hi Ravi,

I am at the same problem.

No solution yet, but looking forward to get one.

What browser are you using?

What module are you working on?

I am currently on PPM 5.0 on 7.31 where we want to use the Gantt etc.

Also, have you had a look into SAP Notes 1925833 and from there referencing 1926137 resp. 1035436?

regards

Darijo

[harsha_jalakam]

Hi Ravi,

Please compare with the JDK&JRE versions with the other systems which are working fine. and try to adjust the same .

We also  had the same issue, when jre & jdk was uninstalled and installed with correct versions( systems on which were working fine ), the issue was resolved.

Regards,

Harsha

[Former Member]

Hi Harsha,

Thanks for your quick reply.

Trying to figure it out by comparing JRE versions but still no result. I have found one problem is that

when Gantt is loaded , Java in control panel loads all the Applets requried in to its Resources.

These Resources are missing for the user for whom the Gantt error is produced.

Loaded Resources can be found in the below Path :

ControlPanel -> Java-> General Tab -> View Button -> select Resources in Show .

So, How to load these resources ??? . Is there any setting to do that ???

Regards,
Ravikiran.K

[harsha_jalakam]

Hi Ravi,

We had re installed all jre and jdk softwares,  but not sure that would solve your issue. Workaround might be , we can copy all missing .jar resources and place it manually.

Regards,

Harsha

[Former Member]

Hi Harsha,

we can't copy missing .Jar files for all the users who are facing the error. Actually it is working for some users. So, Is there any setting in Control panel or IE Internet options so that these happen automatically.

Regards,
Ravikiran.K

[Former Member]

Hi Ravi,

Refer this Note 1046896 or implement Note 1035436

else i think is a firewall issue. Go to Java control panel and click on Network settings --> and select Direct connection and restart the system.

Thanks

KH

[Former Member]

Hi Hawkins,

Even after network settings & restarting the system the result is the same of error.

Regards,

Ravikiran.K