java - Sudden increase of threads - JConsole -

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sometimes application becomes slow , don't know why.

i found out that, when happens, there rather odd increase of number of threads in jconsole.

the problem don't know how pinpoint threads created time , why. maybe jconsole has way on doing me, have no idea.

does has clue on how resolving mistery? jconsole print below. (it happened around 12:00).

jconsole thread print


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