openjdk team mailing list archive

[David Harrigan <1417962@xxxxxxxxxxxxxxxxxx>]

Hi,

Not sure where I should post this, but I've just hit this bug with Java
8

java version "1.8.0_31"
Java(TM) SE Runtime Environment (build 1.8.0_31-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)

# update-alternatives --config java
There is 1 choice for the alternative java (providing /usr/bin/java).

  Selection    Path                                     Priority   Status
------------------------------------------------------------
  0            /usr/lib/jvm/java-8-oracle/jre/bin/java   20012     auto mode
* 1            /usr/lib/jvm/java-8-oracle/jre/bin/java   20012     manual mode

# uname -a
Linux java-test-1 3.13.0-45-generic #74-Ubuntu SMP Tue Jan 13 19:36:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

I had to do the workaround (by creating the symlink) in order for
VisualVM to see the data coming from the running JVM.

I would be happy to move/report this issue if someone could suggest a
more appropriate area to post in.

Thank you.

-=david=-

-- 
You received this bug notification because you are a member of OpenJDK,
which is subscribed to openjdk-7 in Ubuntu.
https://bugs.launchpad.net/bugs/1417962

Title:
  6b34 regression: jps as root does not show classname anymore but
  instead 'process information unavailable' for processes running as
  non-root user

Status in openjdk-6 package in Ubuntu:
  Confirmed
Status in openjdk-7 package in Ubuntu:
  Confirmed

Bug description:
  I noticed the following behavior change in the jps command line tool when updating from
  6b33-1.13.5-1ubuntu0.12.04 -> 6b34-1.13.6-1ubuntu0.12.04.1 on a ubuntu 12.04 64bit system.

  Staring point is a java process for apache tomcat running as non-root
  user (username openbravo in below example) with pid 1462.

  In 6b33 when running jps -l as root it did correctly identify the classname of the running processes as shown here:
  luna686:~# jps -l
  1462 org.apache.catalina.startup.Bootstrap
  11610 sun.tools.jps.Jps

  However after updating the same jps call as root-user does now show:
  luna686:~# jps -l
  12056 sun.tools.jps.Jps
  1462 -- process information unavailable

  Which break some custom monitoring of us trying to find tomcat process
  via its classname.

  Note: Problem only occours when running jps as root user and process
  in question is running non-root. When running jps as same user as the
  tomcat process is running with then both 6b33 + 6b34 work as expected

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