PD4ML v4 Forums PD4ML v3 Archived Forums (Read Only) Troubleshooting Erratic NullPointerException in PD4ML.render()

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  • #26738

    We’re using PD4ML 3.70fx4 in a servlet running in a Tomcat container and PD4ML.render(URL, ByteArrayOutputStream) causes an erratic NullPointerException with the following stacktrace:

    java.lang.NullPointerException
    at org.zefer.pd4ml.PD4ML.o00000(Unknown Source)
    at org.zefer.pd4ml.PD4ML.render(Unknown Source)
    at PDFGeneratorServlet.doPdfGeneration(PDFGeneratorServlet.java:142)

    Sadly, the stacktrace does not provide enough information to locate the root cause.

    This behaviour is erratic. As a matter of fact, the same request does usually succeed upon retry just a second later. But responding with a 404 is still not feasible from the customers’ perspective.

    Any suggestions appreciated!

    #29026

    Did you check if the problem exists in the most recent version of PD4ML?

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