Archive for September, 2012

Error when attempting to interact with a service managed by the Livecycle DSC container

- Siddharth Jain, Quality Manager @ Adobe

Issue

On WebSphere, errors are encountered on attempting to interact with a service managed by the Livecycle DSC container. The service is unexpectedly shown as inactive in the Livecycle administration console. Examination of the server logs (SystemOut.log) shows that the service failed to start due to class-loading issues (ClassNotFoundException errors).

Reason

The issue occurs as a result of a file-lock which prevents the DSC container from properly extracting the class files required by the DSC class-loader to a temporary directory on the local file-system. To confirm that this is the case, note the time-stamp of the ClassNotFoundException error thrown during service startup in the WAS SystemOut.log and then check that the WAS SystemErr.log contains warning messages of the form ‘The process cannot access this file because it is being used by another process’ around the same time.

Solution

To remove the lock, shut down the server and periodically try to manually delete the file for which the file-lock warning is appearing in SystemErr.log (the log file should contain the complete path of the file) . If the deletion succeeds within a reasonable amount of time, start the server and check that things are fine. If the file continues to stay locked for a long period of time, try restarting the machine.

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LiveCycle Designer accessibility resources

LiveCycle Designer allows designers to design accessible forms, that are usable by people with various disabilities. Accessible forms also help designers comply with various laws and accessibility standards, such as Section 508. LiveCycle Designer also provides support for creating accessible XHTML files (using LiveCycle Forms) and PDF forms.

If you are working with accessible forms, you will find the following official resources very useful:

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