com/sun/tools/attach/VirtualMachine in OpenJDK 7 & 8 (original) (raw)
Henri Gomez henri.gomez at gmail.com
Fri Apr 13 06:34:24 PDT 2012
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I tried to use CRASH (http://vietj.github.com/crash/), a nice JVM console, with OpenJDK 7 (and 8) on OSX using community build (http://code.google.com/p/openjdk-osx-build/)/
Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/tools/attach/VirtualMachine at org.crsh.standalone.CRaSH.main(CRaSH.java:92) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.crsh.cmdline.matcher.MethodMatch.doInvoke(MethodMatch.java:153) at org.crsh.cmdline.matcher.CommandMatch.invoke(CommandMatch.java:76) at org.crsh.standalone.CRaSH.main(CRaSH.java:237) Caused by: java.lang.ClassNotFoundException: com.sun.tools.attach.VirtualMachine at java.net.URLClassLoader$1.run(URLClassLoader.java:366) 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) ... 8 more
Source code is here :
https://github.com/vietj/crash/blob/master/shell/core/src/main/java/org/crsh/standalone/CRaSH.java
Exception occurs in :
VirtualMachine vm = VirtualMachine.attach("" + pid); vm.loadAgent(f.getCanonicalPath(), options);
Some search in Google reported a possible missing lib attach (https://bbs.archlinux.org/viewtopic.php?id=131700)
But libattach is bundled in JVM :
/Library/Java/JavaVirtualMachines/1.7.0u4.jdk/Contents/Home/jre/lib/libattach.dylib
Is it a known issue for OpenJDK 7 or is it specific to OSX implementation ?
Cheers
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