https://www.graalvm.org/ 
public class com.oracle.truffle.sl.test.SLCodeSharingTest
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.truffle.sl.test.SLCodeSharingTest
  super_class: java.lang.Object
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.sl.test.SLCodeSharingTest this
         0: .line 51
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.oracle.truffle.sl.test.SLCodeSharingTest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/sl/test/SLCodeSharingTest;

  private static org.graalvm.polyglot.Source createFib();
    descriptor: ()Lorg/graalvm/polyglot/Source;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 54
            ldc "sl"
            ldc "function fib(n) {\n  if (n == 1 || n == 2) {\n    return 1;\n  }\n  return fib(n - 1) + fib(n - 2);\n}\n"
         1: .line 61
            ldc "fib.sl"
         2: .line 54
            invokestatic org.graalvm.polyglot.Source.newBuilder:(Ljava/lang/String;Ljava/lang/CharSequence;Ljava/lang/String;)Lorg/graalvm/polyglot/Source$Builder;
         3: .line 61
            invokevirtual org.graalvm.polyglot.Source$Builder.buildLiteral:()Lorg/graalvm/polyglot/Source;
         4: .line 54
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void testFibSharing();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=8, args_size=1
        start local 0 // com.oracle.truffle.sl.test.SLCodeSharingTest this
         0: .line 66
            invokestatic com.oracle.truffle.sl.test.SLCodeSharingTest.createFib:()Lorg/graalvm/polyglot/Source;
            astore 1 /* fib */
        start local 1 // org.graalvm.polyglot.Source fib
         1: .line 67
            aconst_null
            astore 2
            aconst_null
            astore 3
         2: invokestatic org.graalvm.polyglot.Engine.create:()Lorg/graalvm/polyglot/Engine;
            astore 4 /* engine */
        start local 4 // org.graalvm.polyglot.Engine engine
         3: .line 68
            aconst_null
            astore 5
            aconst_null
            astore 6
         4: iconst_0
            anewarray java.lang.String
            invokestatic org.graalvm.polyglot.Context.newBuilder:([Ljava/lang/String;)Lorg/graalvm/polyglot/Context$Builder;
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Context$Builder.engine:(Lorg/graalvm/polyglot/Engine;)Lorg/graalvm/polyglot/Context$Builder;
            invokevirtual org.graalvm.polyglot.Context$Builder.build:()Lorg/graalvm/polyglot/Context;
            astore 7 /* context */
        start local 7 // org.graalvm.polyglot.Context context
         5: .line 69
            lconst_0
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Engine.getCachedSources:()Ljava/util/Set;
            invokeinterface java.util.Set.size:()I
            i2l
            invokestatic org.junit.Assert.assertEquals:(JJ)V
         6: .line 70
            aload 7 /* context */
            aload 1 /* fib */
            invokevirtual org.graalvm.polyglot.Context.eval:(Lorg/graalvm/polyglot/Source;)Lorg/graalvm/polyglot/Value;
            pop
         7: .line 71
            lconst_1
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Engine.getCachedSources:()Ljava/util/Set;
            invokeinterface java.util.Set.size:()I
            i2l
            invokestatic org.junit.Assert.assertEquals:(JJ)V
         8: .line 72
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Engine.getCachedSources:()Ljava/util/Set;
            aload 1 /* fib */
            invokeinterface java.util.Set.contains:(Ljava/lang/Object;)Z
            invokestatic org.junit.Assert.assertTrue:(Z)V
         9: .line 73
            aload 7 /* context */
            ifnull 15
            aload 7 /* context */
            invokevirtual org.graalvm.polyglot.Context.close:()V
            goto 15
      StackMap locals: com.oracle.truffle.sl.test.SLCodeSharingTest org.graalvm.polyglot.Source java.lang.Throwable java.lang.Throwable org.graalvm.polyglot.Engine java.lang.Throwable java.lang.Throwable org.graalvm.polyglot.Context
      StackMap stack: java.lang.Throwable
        10: astore 5
            aload 7 /* context */
            ifnull 11
            aload 7 /* context */
            invokevirtual org.graalvm.polyglot.Context.close:()V
        end local 7 // org.graalvm.polyglot.Context context
      StackMap locals:
      StackMap stack:
        11: aload 5
            athrow
      StackMap locals:
      StackMap stack: java.lang.Throwable
        12: astore 6
            aload 5
            ifnonnull 13
            aload 6
            astore 5
            goto 14
      StackMap locals:
      StackMap stack:
        13: aload 5
            aload 6
            if_acmpeq 14
            aload 5
            aload 6
            invokevirtual java.lang.Throwable.addSuppressed:(Ljava/lang/Throwable;)V
      StackMap locals:
      StackMap stack:
        14: aload 5
            athrow
        15: .line 74
      StackMap locals:
      StackMap stack:
            aconst_null
            astore 5
            aconst_null
            astore 6
        16: iconst_0
            anewarray java.lang.String
            invokestatic org.graalvm.polyglot.Context.newBuilder:([Ljava/lang/String;)Lorg/graalvm/polyglot/Context$Builder;
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Context$Builder.engine:(Lorg/graalvm/polyglot/Engine;)Lorg/graalvm/polyglot/Context$Builder;
            invokevirtual org.graalvm.polyglot.Context$Builder.build:()Lorg/graalvm/polyglot/Context;
            astore 7 /* context */
        start local 7 // org.graalvm.polyglot.Context context
        17: .line 75
            lconst_1
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Engine.getCachedSources:()Ljava/util/Set;
            invokeinterface java.util.Set.size:()I
            i2l
            invokestatic org.junit.Assert.assertEquals:(JJ)V
        18: .line 76
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Engine.getCachedSources:()Ljava/util/Set;
            aload 1 /* fib */
            invokeinterface java.util.Set.contains:(Ljava/lang/Object;)Z
            invokestatic org.junit.Assert.assertTrue:(Z)V
        19: .line 77
            aload 7 /* context */
            aload 1 /* fib */
            invokevirtual org.graalvm.polyglot.Context.eval:(Lorg/graalvm/polyglot/Source;)Lorg/graalvm/polyglot/Value;
            pop
        20: .line 78
            lconst_1
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Engine.getCachedSources:()Ljava/util/Set;
            invokeinterface java.util.Set.size:()I
            i2l
            invokestatic org.junit.Assert.assertEquals:(JJ)V
        21: .line 79
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Engine.getCachedSources:()Ljava/util/Set;
            aload 1 /* fib */
            invokeinterface java.util.Set.contains:(Ljava/lang/Object;)Z
            invokestatic org.junit.Assert.assertTrue:(Z)V
        22: .line 80
            aload 7 /* context */
            ifnull 28
            aload 7 /* context */
            invokevirtual org.graalvm.polyglot.Context.close:()V
            goto 28
      StackMap locals: com.oracle.truffle.sl.test.SLCodeSharingTest org.graalvm.polyglot.Source java.lang.Throwable java.lang.Throwable org.graalvm.polyglot.Engine java.lang.Throwable java.lang.Throwable org.graalvm.polyglot.Context
      StackMap stack: java.lang.Throwable
        23: astore 5
            aload 7 /* context */
            ifnull 24
            aload 7 /* context */
            invokevirtual org.graalvm.polyglot.Context.close:()V
        end local 7 // org.graalvm.polyglot.Context context
      StackMap locals:
      StackMap stack:
        24: aload 5
            athrow
      StackMap locals:
      StackMap stack: java.lang.Throwable
        25: astore 6
            aload 5
            ifnonnull 26
            aload 6
            astore 5
            goto 27
      StackMap locals:
      StackMap stack:
        26: aload 5
            aload 6
            if_acmpeq 27
            aload 5
            aload 6
            invokevirtual java.lang.Throwable.addSuppressed:(Ljava/lang/Throwable;)V
      StackMap locals:
      StackMap stack:
        27: aload 5
            athrow
        28: .line 81
      StackMap locals:
      StackMap stack:
            aload 4 /* engine */
            ifnull 34
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Engine.close:()V
            goto 34
      StackMap locals:
      StackMap stack: java.lang.Throwable
        29: astore 2
            aload 4 /* engine */
            ifnull 30
            aload 4 /* engine */
            invokevirtual org.graalvm.polyglot.Engine.close:()V
        end local 4 // org.graalvm.polyglot.Engine engine
      StackMap locals:
      StackMap stack:
        30: aload 2
            athrow
      StackMap locals:
      StackMap stack: java.lang.Throwable
        31: astore 3
            aload 2
            ifnonnull 32
            aload 3
            astore 2
            goto 33
      StackMap locals:
      StackMap stack:
        32: aload 2
            aload 3
            if_acmpeq 33
            aload 2
            aload 3
            invokevirtual java.lang.Throwable.addSuppressed:(Ljava/lang/Throwable;)V
      StackMap locals:
      StackMap stack:
        33: aload 2
            athrow
        34: .line 82
      StackMap locals:
      StackMap stack:
            return
        end local 1 // org.graalvm.polyglot.Source fib
        end local 0 // com.oracle.truffle.sl.test.SLCodeSharingTest this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   35     0     this  Lcom/oracle/truffle/sl/test/SLCodeSharingTest;
            1   35     1      fib  Lorg/graalvm/polyglot/Source;
            3   30     4   engine  Lorg/graalvm/polyglot/Engine;
            5   11     7  context  Lorg/graalvm/polyglot/Context;
           17   24     7  context  Lorg/graalvm/polyglot/Context;
      Exception table:
        from    to  target  type
           5     9      10  any
           4    12      12  any
          17    22      23  any
          16    25      25  any
           3    28      29  any
           2    31      31  any
    Exceptions:
      throws java.lang.Exception
    RuntimeVisibleAnnotations: 
      org.junit.Test()
}
SourceFile: "SLCodeSharingTest.java"
InnerClasses:
  public final Builder = org.graalvm.polyglot.Context$Builder of org.graalvm.polyglot.Context
  public Builder = org.graalvm.polyglot.Source$Builder of org.graalvm.polyglot.Source