I got a NoClassDefFoundError when trying to execute HotThread.jar in Cent OS Linux using java -jar command, seems it cannot find com/sun/tools/attach/VirtualMachine which is part of tools.jar.
The solution is to just use the java -classpath approach and load the two libraries then execute the HotThread program:
[root@ALFSYSTEST4-VM bin]# ./java -jar /home/samba/HotThread.jar 3223 Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/tools/attach/VirtualMachine at hotthread.Main.main(Main.java:52) Caused by: java.lang.ClassNotFoundException: com.sun.tools.attach.VirtualMachine at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:303) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316) ... 1 more
The solution is to just use the java -classpath approach and load the two libraries then execute the HotThread program:
java -classpath "/opt/jdk1.6/lib/tools.jar:/home/samba/HotThread.jar" hotthread.Main 3223
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