Minnal requires tools.jar to be present on the classpath. If it doesn’t find, you might see the below exception,
1 2 3 4 5 6 7 8 | Caused by: java.lang.ClassNotFoundException: com.sun.tools.attach.VirtualMachine
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 9 more
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To resolve this, make sure your JAVA_HOME points to the JDK and not JRE. Also ensure that java command is loaded from JDK and not from JRE. If it still throws this exception, check if mvn is pointing to JDK.
Minnal