https://www.graalvm.org/ 
public interface com.oracle.graal.pointsto.BigBang$TypeFlowRunnable extends com.oracle.graal.pointsto.util.CompletionExecutor$DebugContextRunnable
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.oracle.graal.pointsto.BigBang$TypeFlowRunnable
  super_class: java.lang.Object
{
  public abstract com.oracle.graal.pointsto.flow.TypeFlow<?> getTypeFlow();
    descriptor: ()Lcom/oracle/graal/pointsto/flow/TypeFlow;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Lcom/oracle/graal/pointsto/flow/TypeFlow<*>;
}
SourceFile: "BigBang.java"
NestHost: com.oracle.graal.pointsto.BigBang
InnerClasses:
  public abstract TypeFlowRunnable = com.oracle.graal.pointsto.BigBang$TypeFlowRunnable of com.oracle.graal.pointsto.BigBang
  public abstract DebugContextRunnable = com.oracle.graal.pointsto.util.CompletionExecutor$DebugContextRunnable of com.oracle.graal.pointsto.util.CompletionExecutor