java.lang.VerifyError: Return type must be void in <init> method
Exception Details:
  Location:
    nonVoidInitSigCFE.<init>()V @1: invokespecial
  Reason:
    Error exists in the bytecode
  Bytecode:
    0000000: 2ab7 0001 b1

at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:380)
at NameAndTypeSig.main(NameAndTypeSig.java:47)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:833)

Maybe be related to merge with JDK-8268720