java.lang.NoClassDefFoundError: scala/collection/immutable/List

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I had to build one fat jar that will include all dependencies from the other jars that i wanted to use.

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Expert tip

This error means there's a class missing in your classpath during runtime. You need to create a jar with all your dependencies and have it in your classpath. Check Maven Assembly Plugin and how to add your dependencies to a jar: https://goo.gl/U2zr8k

Solutions on the web

via GitHub by manugarri
, 9 months ago
via Stack Overflow by user1733735
, 5 months ago
via Stack Overflow by Mohammad Zammam
, 10 months ago
via Stack Overflow by maddening
, 2 years ago
java.lang.ClassNotFoundException: scala.collection.immutable.List
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
at java.lang.Class.getMethod0(Class.java:3018)
at java.lang.Class.getMethod(Class.java:1784)
at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)

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