https://github.com/oracle/graal: GraalVM is an ecosystem for compiling and running applications written in multiple languages. GraalVM removes the isolation between programming languages and enables interoperability in a shared runtime. 
public final class org.graalvm.nativeimage.CurrentIsolate
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.graalvm.nativeimage.CurrentIsolate
  super_class: java.lang.Object
{
  public static org.graalvm.nativeimage.Isolate getIsolate();
    descriptor: ()Lorg/graalvm/nativeimage/Isolate;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 56
            new java.lang.IllegalStateException
            dup
            ldc "Cannot invoke method during native image generation"
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public static org.graalvm.nativeimage.IsolateThread getCurrentThread();
    descriptor: ()Lorg/graalvm/nativeimage/IsolateThread;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 65
            new java.lang.IllegalStateException
            dup
            ldc "Cannot invoke method during native image generation"
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.nativeimage.CurrentIsolate this
         0: .line 68
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 69
            return
        end local 0 // org.graalvm.nativeimage.CurrentIsolate this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/graalvm/nativeimage/CurrentIsolate;
}
SourceFile: "CurrentIsolate.java"