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Message #12073
[Bug 1611598]
Bug 3136 filed for CACAO.
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https://bugs.launchpad.net/bugs/1611598
Title:
jamvm is broken due to missing native methods in sun.misc.Unsafe
Status in OpenJDK:
In Progress
Status in openjdk-7 package in Ubuntu:
Confirmed
Status in openjdk-7 source package in Precise:
New
Status in openjdk-7 source package in Trusty:
New
Bug description:
[Issue]
The fix of OpenJDK's bug 8158260 (http://icedtea.classpath.org/hg/release/icedtea7-forest-2.6/hotspot/rev/4f8cbd54a9c6) introduced 2 new native methods to the sun.misc.Unsafe class: isBigEndian0 and unalignedAccess0.
This completely broke JamVM and as of now it is impossible to start a
jamvm session.
jtreg summary results for OpenJDK 7:
hotspot - Test results: passed: 5; failed: 309; error: 7
langtools - Test results: passed: 374; failed: 1,593; error: 1
An error output from a testcase:
----------System.err:(6/344)----------
Error initialising VM (initialiseMainThread)
Check the README for compatible class-libraries/versions
Exception occurred while printing exception (java/lang/NullPointerException)...
Original exception was java/lang/UnsatisfiedLinkError
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
result: Failed. Unexpected exit from test [exit code: 1]
Running java -jamvm -version fails the same way.
[Fix]
The simple fix is to add both methods to the natives.c file in the classlib/openjdk directory.
I have tested this with IcedTea 2.6.7 and now jtreg passes:
hotspot - Test results: passed: 220; failed: 90; error: 11
langtools - Test results: passed: 1,901; failed: 65; error: 2
I have reported this upstream at https://sourceforge.net/p/jamvm/code
/merge-requests/1/ and it is now waiting review.
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References