[jira] [Created] (PDFBOX-6014) renderImageWithDPI cannot be executed in multiple threads

["Tom (Jira)" <ji...@apache.org>]

Tom created PDFBOX-6014:
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             Summary: renderImageWithDPI cannot be executed in multiple threads
                 Key: PDFBOX-6014
                 URL: https://issues.apache.org/jira/browse/PDFBOX-6014
             Project: PDFBox
          Issue Type: Task
    Affects Versions: 3.0.5 PDFBox
            Reporter: Tom
         Attachments: Test-1.java, sample.pdf

I am trying to use PDFRenderer renderImageWithDPI in parallel to speed up the process. However, it seems to be running into exception like below
{noformat}
Caused by: java.lang.IllegalStateException: Possible recursion found when searching for page 3
    at org.apache.pdfbox.pdmodel.PDPageTree.get(PDPageTree.java:304)
    at org.apache.pdfbox.pdmodel.PDPageTree.get(PDPageTree.java:263)
    at org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:263)
    at org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:247)
    at org.apache.pdfbox.rendering.PDFRenderer.renderImageWithDPI(PDFRenderer.java:233)
    at com.solifi.edmstestservice.Test.lambda$processPdfInParallel$1(Test.java:72)
    at java.base/java.util.stream.IntPipeline$1$1.accept(IntPipeline.java:180)
    at java.base/java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:104){noformat}
It is fine if I am using a loop to make the call for each page one at a time

I am attaching a tet



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