icedtea-1.14 JamVM + OpenJDK 7 -version patch

[Xerxes Rånby]

fre 2011-05-27 klockan 00:03 +0200 skrev Matthias Klose:
> On 05/26/2011 02:17 PM, Xerxes Rånby wrote:
> > Hi!
> >
> > Today i tested to build JamVM + OpenJDK 7 using the newly released
> > icedtea-1.14
> [...]
> 
> looks fine to me.  did you run the jtreg tests? for openjdk-6/jamvm I get 
> reasonable results for the hotspot and tools tests, but the jdk tests hang in 
> the sun/nio tests.
> 
>    Matthias

I am not able to run the jtreg tests, what I currently observe are a
unsatisfied link error.

xranby at xranby-ESPRIMO-P7935:~/test
$ ../icedtea-1.14/openjdk.build/j2sdk-image/bin/java Linpack 
java.lang.UnsatisfiedLinkError: registerNatives
	at sun.misc.Perf.registerNatives(Native Method)
	at sun.misc.Perf.<clinit>(Perf.java:536)
	at sun.misc.Perf$GetPerfAction.run(Perf.java:97)
	at sun.misc.Perf$GetPerfAction.run(Perf.java:89)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.misc.PerfCounter.<clinit>(PerfCounter.java:51)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:448)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	at
sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:472)

The URLClassLoader uses sun.misc.Perf to register startup time.

I start to think this are a bug in OpenJDK 7 that the sun.misc.Perf
constructor expects to be able to use the native registerNatives method
in libhprof.so without explicilty making sure that this library have
already been loaded.

The libhprof.so are part of the Hotspot JVMTI implementation so it are
no surprise that JamVM currently dont not load it.

Rob can you tell if registerNative are supposed to be part of the public
JNI interface between OpenJDK7 classes and the JVM?

Xerxes