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Support Article

Getting java.lang.NoClassDefFoundError when trying to open WO



User was getting java.lang.NoClassDefFoundError: com/pegarules/generated/pega_processengine_workutilities when trying to open workobject  in user/manager portal.

Error Messages

2016-01-25 06:01:21,506 [    WebContainer : 5] [  STANDARD] [XXXX:15.12.01] (a_Portal_DesignerStudio.Stream) ERROR XXXXXX| USZ00AA - Section 'ActivityStatusSuccess' execution error on page 'pyDisplayHarness' of  class 'Data-Portal'.
java.lang.NoClassDefFoundError: com/pegarules/generated/pega_processengine_workutilities
 at com.pegarules.generated.html_harness.ra_stream_activitystatussuccess_651e63129ae0c2fe93fe3ab5d61b5baf.execute(
 at com.pega.pegarules.session.internal.mgmt.Executable.getStream(
 at com.pega.pegarules.session.internal.mgmt.Executable.getStream(
Caused by:
java.lang.NoClassDefFoundError: com/pegarules/generated/pega_processengine_workutilities
 at com.pegarules.generated.html_harness.ra_stream_harnessfail_722aa9e1cba778320d043459b099f02c.execute(
 ... 72 more

Steps to Reproduce

1.Login to user portal.
2. Open case.

Root Cause

Generated jave file got corrupted/missed in PRGenJava folder of temp directory.


Removing the temp directory would  re-generate java files and libraries.


Published March 5, 2016 - Updated October 8, 2020

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