java.lang.NoClassDefFoundError: com/sun/tools/attach/VirtualMachine

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

Expert tip

A few things cause this exception:
1) Check if you have all jars and if they're in the correct path.
2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.


you can change your scala version to 2.11.11

Solutions on the web

via Stack Overflow by thunder
, 11 months ago
java.lang.NoClassDefFoundError: com/sun/tools/attach/VirtualMachine
at java.lang.ClassLoader.loadClass(
at sun.misc.Launcher$AppClassLoader.loadClass(
at java.lang.ClassLoader.loadClass(
at my.package.bootstrap(
at my.package.main(

Users with the same issue

6 times, 4 hours ago
1415 times, 18 hours ago
Once, 23 hours ago
3 times, 1 day ago
Once, 1 day ago

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.