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Support Article

Third party .jar files not being referenced by PRPC 7.1.6



During execution of application rule which references a third party JAR (classes) it fails with the below error.

Error Messages constructor failed: java.lang.NoClassDefFoundError: com.printsoft.presshare.PSClient

Steps to Reproduce

  1. Run an activity that includes hand-crafted Java and that uses a third-party .jar file.

Root Cause

Third-party classes are not visible or loaded at runtime by the PRPC ClassLoader.


  1. Use Application Import from the Pega Developer portal menu (DesignerStudio -> Application -> Distribution -> Import) to import the third-party JAR. Complete the import wizard with the default options.
  2. Re-start the PRPC JVM(s)

Published February 9, 2016 - Updated October 8, 2020

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