https://www.graalvm.org/ 
final class com.oracle.truffle.polyglot.PolyglotEngineImpl$StableLocalLocations
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.polyglot.PolyglotEngineImpl$StableLocalLocations
  super_class: java.lang.Object
{
  final com.oracle.truffle.polyglot.PolyglotLocals$LocalLocation[] locations;
    descriptor: [Lcom/oracle/truffle/polyglot/PolyglotLocals$LocalLocation;
    flags: (0x0010) ACC_FINAL
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$CompilationFinal(dimensions = 1)

  final com.oracle.truffle.api.Assumption assumption;
    descriptor: Lcom/oracle/truffle/api/Assumption;
    flags: (0x0010) ACC_FINAL

  void <init>(com.oracle.truffle.polyglot.PolyglotLocals$LocalLocation[]);
    descriptor: ([Lcom/oracle/truffle/polyglot/PolyglotLocals$LocalLocation;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotEngineImpl$StableLocalLocations this
        start local 1 // com.oracle.truffle.polyglot.PolyglotLocals$LocalLocation[] locations
         0: .line 1976
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 1974
            aload 0 /* this */
            invokestatic com.oracle.truffle.api.Truffle.getRuntime:()Lcom/oracle/truffle/api/TruffleRuntime;
            invokeinterface com.oracle.truffle.api.TruffleRuntime.createAssumption:()Lcom/oracle/truffle/api/Assumption;
            putfield com.oracle.truffle.polyglot.PolyglotEngineImpl$StableLocalLocations.assumption:Lcom/oracle/truffle/api/Assumption;
         2: .line 1977
            aload 0 /* this */
            aload 1 /* locations */
            putfield com.oracle.truffle.polyglot.PolyglotEngineImpl$StableLocalLocations.locations:[Lcom/oracle/truffle/polyglot/PolyglotLocals$LocalLocation;
         3: .line 1978
            return
        end local 1 // com.oracle.truffle.polyglot.PolyglotLocals$LocalLocation[] locations
        end local 0 // com.oracle.truffle.polyglot.PolyglotEngineImpl$StableLocalLocations this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    4     0       this  Lcom/oracle/truffle/polyglot/PolyglotEngineImpl$StableLocalLocations;
            0    4     1  locations  [Lcom/oracle/truffle/polyglot/PolyglotLocals$LocalLocation;
    MethodParameters:
           Name  Flags
      locations  
}
SourceFile: "PolyglotEngineImpl.java"
NestHost: com.oracle.truffle.polyglot.PolyglotEngineImpl
InnerClasses:
  public abstract CompilationFinal = com.oracle.truffle.api.CompilerDirectives$CompilationFinal of com.oracle.truffle.api.CompilerDirectives
  final StableLocalLocations = com.oracle.truffle.polyglot.PolyglotEngineImpl$StableLocalLocations of com.oracle.truffle.polyglot.PolyglotEngineImpl
  abstract LocalLocation = com.oracle.truffle.polyglot.PolyglotLocals$LocalLocation of com.oracle.truffle.polyglot.PolyglotLocals