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We have observed NegativeArraySizeExceptions along with java OutOfMemory errors while using Jenkins CLI to schedule build jobs from a master job. Followed the recommendations to increase heap size, but continued to get java heap errors. After enabling "-XX:+HeapDumpOnOutOfMemoryError", there have been some heap dumps produced that are smaller than our max heap size. Using these JVM args in Jenkins 1.551:
<jvmarg value="-Xmx1024m" />
<jvmarg value="-XX:+HeapDumpOnOutOfMemoryError" />
<jvmarg value="-XX:MaxPermSize=512m" />
Heap dumps are attached.