OWB: Java Heap Space error when opening a project

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Article ID: 130456

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Updated On:

Products

Clarity PPM On Premise Clarity PPM SaaS

Issue/Introduction

When attempting to open a project in Open Workbench (OWB), you are getting an error "Unable to open project <project id>. An exception occurred: java.lang.OutOfMemoryError: Java heap space".

Increasing the JavaMemoryLimit as per OWB: Setting maximum java memory usage does not help get the project to open. 

Cause

The project cannot be opened due to a memory limitation with the 32 bit version of OWB. 

Environment

Release: All
Component: Open Workbench (OWB)

Resolution

If possible, decreasing the size of the project may help get it to open in OWB. This can be done by:

  1. Temporarily removing subprojects (if any)
  2. Checking the option to 'Only Export the Current Baseline' (if not already checked)
  3. Splitting up some of the tasks onto a second project.