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spring-boot-demo-oom: five real memory-leak demos with captured OOM + MAT evidence

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asmhatre
2026-10-01 12:11:56 +00:00
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classloader-leak/docs/output/01-oom-console.txt
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$ java -Xmx160m -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=docs/output/heap.hprof -jar target/classloader-leak.jar
classloader-leak: driving repeated plugin reloads to OOM, class=com.ankurm.oomplugin.PluginTask
classloader-leak: reloads=150 livePlugins=150
classloader-leak: reloads=300 livePlugins=300
classloader-leak: reloads=450 livePlugins=450
java.lang.OutOfMemoryError: Java heap space
Dumping heap to docs/output/heap.hprof ...
Heap dump file created [138919083 bytes in 0.140 secs]
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "main"