Andrea Cosentino created CAMEL-23124:
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Summary: camel-docling - Fix CLI mode ProcessBuilder deadlock with
sequential stream reading
Key: CAMEL-23124
URL: https://issues.apache.org/jira/browse/CAMEL-23124
Project: Camel
Issue Type: Bug
Reporter: Andrea Cosentino
Assignee: Andrea Cosentino
Fix For: 4.18.1, 4.19.0
In DoclingProducer.executeDoclingCommand(), stdout and stderr of the CLI child
process are read sequentially, first all of stdout to EOF, then all of stderr.
This creates a deadlock scenario: if the child process writes enough data to
stderr to fill the OS pipe buffer (~64KB on Linux), the child blocks waiting to
write more to stderr, while the Java side blocks reading stdout waiting for an
EOF that never arrives because the child is stuck. Both processes hang
indefinitely.
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