In OpenJDK, Oracle JDK, and Sun JDK, com.sun.tools stuff lives in tools.jar.
The Java versions from Apple put that stuff in rt.jar if I remember
correctly.
Dan
On 4/13/12 8:05 AM, Henri Gomez wrote:
It works !
Is it an expected behaviour for OpenJDK 7/8 or only OSX version ?
2012/4/13 Daniel D. Daugherty<[email protected]>:
Henri,
Try adding $JAVA_HOME/lib/tools.jar to your classpath...
Dan
On 4/13/12 7:34 AM, Henri Gomez wrote:
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
