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[Xerxes Rånby <xerxes@xxxxxxxxx>]

you can use the workaround in precise

workaround:
cd /usr/lib/jvm/java-7-openjdk-armhf/jre/lib/arm/
sudo ln -s jamvm/libjvm.so .

or install the proposed package:
https://launchpad.net/ubuntu/+source/openjdk-7/7~u3-2.1.1~pre1-1ubuntu3
that uses the ARM asm interpreter by default.

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https://bugs.launchpad.net/bugs/850433

Title:
  java -jamvm fails to run; couldn't open libjava.so

Status in “openjdk-7” package in Ubuntu:
  Confirmed

Bug description:
  tested on armel oneiric using testcase:
  /usr/lib/jvm/java-7-openjdk-armel/bin/java -jamvm -verbose:jni -version

  output:
  xranby@ac100-oneiric:~$ /usr/lib/jvm/java-7-openjdk-armel/bin/java -jamvm -verbose:jni -version
  [Failed to open library /usr/lib/jvm/java-7-openjdk-armel/jre/lib/arm/libjava.so: libjvm.so: cannot open shared object file: No such file or directory]
  Error initialising natives: couldn't open libjava.so: use -verbose:jni for more information
  Error initialising VM (initialiseNatives)
  Error: Could not create the Java Virtual Machine.
  Error: A fatal exception has occurred. Program will exit.

  workaround:
  cd /usr/lib/jvm/java-7-openjdk-armel/jre/lib/arm/
  sudo ln -s jamvm/libjvm.so .

  expected output:
  xranby@ac100-oneiric:/usr/lib/jvm/java-7-openjdk-armel/jre/lib/arm$ /usr/lib/jvm/java-7-openjdk-armel/bin/java -jamvm -verbose:jni -version
  [Opened native library /usr/lib/jvm/java-7-openjdk-armel/jre/lib/arm/libjava.so]
  [Dynamic-linking native method java.lang.Object.registerNatives ... JNI]
  ...
  [Dynamic-linking native method sun.misc.Unsafe.compareAndSwapObject ... internal]
  OpenJDK Runtime Environment (IcedTea7 2.0pre) (7~b147-2.0~pre4-1)
  JamVM (build 1.6.0-devel, inline-threaded interpreter with stack-caching)

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