ClassFormatError when using intellij to run rbtree test

[ice1000]

java.lang.ClassFormatError: Invalid index 0 in LocalVariableTable in class file AYA/_baka$_baka_List

  at java.base/java.lang.ClassLoader.defineClass1(Native Method)
  at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1023)
  at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
  at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:524)
  at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:427)
  at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:421)
  at java.base/java.security.AccessController.doPrivileged(AccessController.java:714)
  at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:420)
  at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:592)
  at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
  at InstanceLoader.load(InstanceLoader.java:14)
  at InstanceLoader.loadInstance(InstanceLoader.java:32)
  at RedBlackTreeTest.test1(RedBlackTreeTest.java:43)

Running test with gradle works