https://www.graalvm.org/ 
public abstract class com.oracle.truffle.object.Locations
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: com.oracle.truffle.object.Locations
  super_class: java.lang.Object
{
  protected void <init>();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.object.Locations this
         0: .line 67
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 68
            return
        end local 0 // com.oracle.truffle.object.Locations this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/object/Locations;
}
SourceFile: "Locations.java"
NestMembers:
  com.oracle.truffle.object.Locations$ConstantLocation  com.oracle.truffle.object.Locations$DeclaredLocation  com.oracle.truffle.object.Locations$ValueLocation
InnerClasses:
  public final ConstantLocation = com.oracle.truffle.object.Locations$ConstantLocation of com.oracle.truffle.object.Locations
  public final DeclaredLocation = com.oracle.truffle.object.Locations$DeclaredLocation of com.oracle.truffle.object.Locations
  public abstract ValueLocation = com.oracle.truffle.object.Locations$ValueLocation of com.oracle.truffle.object.Locations
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()