java - Does the OpenJDK JVM have cache/buffers that may look like a memory leak? -

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i'm developing application runs on openjdk jvm , tracking memory usage. resident set size seems increasing on time. i'm wondering if there might buffering or caching going on inside jvm this, , if there is, how account figure out whether application leaking? enter image description here

this graph showing statistics collected on time. 1 causes alarm white 1 (it's plotted against right axis): graph of derivative of processes's memory usage. it's positive, means memory usage growing.


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