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IllegalStateException: Malformed input URL



Microsite URL is initiated from a website to launch a new page. The new page opens, however, IllegalStateException occurs.

Error Messages

java.lang.IllegalStateException: Malformed input URL: additional content after thread purpose
at com.pega.pegarules.session.external.engineinterface.etier.engine.URLComponentProcessor.populateApplicationName(
at com.pega.pegarules.session.external.engineinterface.etier.engine.URLComponentProcessor.populatePathInfoComponents(
at com.pega.pegarules.session.external.engineinterface.etier.engine.URLComponentProcessor.parsePathInfo(

Steps to Reproduce

Initiate a Microsite URL from a website to launch a new page.

Root Cause

When the pattern for a thread name is '/!AppName/$ThreadaName/$WorkProcessing' (the '/$' delimiter occurs multiple times), the request fails. Validation must be performed on Pega Web Mashup first request (which does not have an access group ). However, the validation occurs for every request.


Apply HFix-29776.


Published October 23, 2018 - Updated October 8, 2020

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