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Help in analyzing java.lang.ref.Finalizer in Heap dump analysis [message #1234071]

Tue, 21 January 2014 07:05

suman kumar

Messages: 1
Registered: January 2014

Junior Member

Hi, I am getting the below message in MAT heap dump analyzer overview section

The class "java.lang.ref.Finalizer", loaded by "<system class loader>", occupies 444,982,392 (85.34%) bytes. The memory is accumulated in class "java.lang.ref.Finalizer", loaded by "<system class loader>".

Can someone help me in decoding this issue? what could be going wrong here?

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Re: Help in analyzing java.lang.ref.Finalizer in Heap dump analysis [message #1239066 is a reply to message #1234071]

Mon, 03 February 2014 09:05

Andrew Johnson

Messages: 205
Registered: July 2009

Senior Member

Please try running some of the finalizer queries.

The easiest way is to run the 'Top Components' report, then look at the end for 'Finalizer Statistics'.

Andrew Johnson

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Re: Help in analyzing java.lang.ref.Finalizer in Heap dump analysis [message #1272750 is a reply to message #1234071]

Tue, 18 March 2014 17:15

Krishna R

Messages: 5
Registered: February 2011

Junior Member

Check stack of Finalizer thread. It is possible that a "finalize()" method is deadlocked/blocked causing thread to be stuck at this object, hence the remaining of the Finalizer queue is not processed and piles up.

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