Support Article
IllegalArgumentException generated in the logs
SA-100924
Summary
IllegalArgumentExceptions are generated in the Pega logs. As a result, a blue screen displays and users must log out and relog in to continue.
Error Messages
java.lang.IllegalArgumentException: There is no thread named "TABTHREAD1"
at com.pega.pegarules.session.internal.mgmt.base.RequestorPassivation.removeInactiveThread(RequestorPassivation.java:790) ~[prprivate.jar:?]
at com.pega.pegarules.session.internal.mgmt.PRRequestorImpl.removeInactiveThread(PRRequestorImpl.java:826) ~[prprivate.jar:?]
at com.pegarules.generated.activity.ra_action_freeclipboard_dbb74b720036b41125f73cb5b58a0869.step5_circum0(ra_action_freeclipboard_dbb74b720036b41125f73cb5b58a0869.java:637) ~[?:?]
at com.pegarules.generated.activity.ra_action_freeclipboard_dbb74b720036b41125f73cb5b58a0869.perform(ra_action_freeclipboard_dbb74b720036b41125f73cb5b58a0869.java:147) ~[?:?]
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:2695) ~[prprivate.jar:?]
at com.pega.pegarules.session.internal.mgmt.Executable.invokeActivity(Executable.java:10961) ~[prprivate.jar:?]
at com.pegarules.generated.activity.ra_action_redirectandrun_961ec9cb5b6f14135240c2216100a0be.step3_circum0(ra_action_redirectandrun_961ec9cb5b6f14135240c2216100a0be.java:431) ~[?:?]
at com.pegarules.generated.activity.ra_action_redirectandrun_961ec9cb5b6f14135240c2216100a0be.perform(ra_action_redirectandrun_961ec9cb5b6f14135240c2216100a0be.java:113) ~[?:?]
Steps to Reproduce
Allow the system to be in the Idle state for a few minutes.
Root Cause
A defect in Pegasystems’ code or rules.
The FreeClipboard activity displays the exceptions as part of the Thread cleanup.
Resolution
This feature is implemented in Pega Platform 8.2.6.
Published December 2, 2021
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