https://www.graalvm.org/ 
class com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 extends com.oracle.truffle.polyglot.HostClassLoader$Resource
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1
  super_class: com.oracle.truffle.polyglot.HostClassLoader$Resource
{
  final com.oracle.truffle.polyglot.HostClassLoader$JarLoader this$1;
    descriptor: Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private final java.lang.String val$name;
    descriptor: Ljava/lang/String;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  private final com.oracle.truffle.polyglot.HostClassLoader$JarLoader$ZipUtils$Info val$info;
    descriptor: Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$ZipUtils$Info;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(com.oracle.truffle.polyglot.HostClassLoader$JarLoader, java.lang.String, com.oracle.truffle.polyglot.HostClassLoader$JarLoader$ZipUtils$Info);
    descriptor: (Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader;Ljava/lang/String;Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$ZipUtils$Info;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
         0: .line 360
            aload 0 /* this */
            aload 1
            putfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.this$1:Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader;
            aload 0 /* this */
            aload 2
            putfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.val$name:Ljava/lang/String;
            aload 0 /* this */
            aload 3
            putfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.val$info:Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$ZipUtils$Info;
            aload 0 /* this */
            invokespecial com.oracle.truffle.polyglot.HostClassLoader$Resource.<init>:()V
            return
        end local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$1;
    MethodParameters:
          Name  Flags
      this$0    final
      val$name  final
      val$info  final

  java.net.URL getURL();
    descriptor: ()Ljava/net/URL;
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
         0: .line 364
            new java.lang.StringBuilder
            dup
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.this$1:Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader;
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader.root:Lcom/oracle/truffle/api/TruffleFile;
            invokevirtual com.oracle.truffle.api.TruffleFile.toUri:()Ljava/net/URI;
            invokevirtual java.net.URI.toString:()Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            astore 1 /* url */
        start local 1 // java.lang.StringBuilder url
         1: .line 365
            aload 1 /* url */
            aload 1 /* url */
            invokevirtual java.lang.StringBuilder.length:()I
            iconst_1
            isub
            invokevirtual java.lang.StringBuilder.charAt:(I)C
            bipush 47
            if_icmpeq 3
         2: .line 366
            aload 1 /* url */
            bipush 47
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
         3: .line 368
      StackMap locals: java.lang.StringBuilder
      StackMap stack:
            aload 1 /* url */
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.val$name:Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         4: .line 370
            new java.net.URL
            dup
            aload 1 /* url */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.net.URL.<init>:(Ljava/lang/String;)V
         5: areturn
         6: .line 371
      StackMap locals:
      StackMap stack: java.net.MalformedURLException
            pop
         7: .line 372
            aconst_null
            areturn
        end local 1 // java.lang.StringBuilder url
        end local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$1;
            1    8     1   url  Ljava/lang/StringBuilder;
      Exception table:
        from    to  target  type
           4     5       6  Class java.net.MalformedURLException

  java.net.URL getOwner();
    descriptor: ()Ljava/net/URL;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
         0: .line 378
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.this$1:Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader;
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader.root:Lcom/oracle/truffle/api/TruffleFile;
            invokevirtual com.oracle.truffle.api.TruffleFile.toUri:()Ljava/net/URI;
            invokestatic com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.urlOrNull:(Ljava/net/URI;)Ljava/net/URL;
            areturn
        end local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$1;

  long getLength();
    descriptor: ()J
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
         0: .line 383
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.val$info:Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$ZipUtils$Info;
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$ZipUtils$Info.size:J
            lreturn
        end local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$1;
    Exceptions:
      throws java.io.IOException

  java.io.InputStream getInputStream();
    descriptor: ()Ljava/io/InputStream;
    flags: (0x0000) 
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
         0: .line 388
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.this$1:Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader;
            invokevirtual com.oracle.truffle.polyglot.HostClassLoader$JarLoader.getChannel:()Ljava/nio/channels/SeekableByteChannel;
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1.val$info:Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$ZipUtils$Info;
            getfield com.oracle.truffle.polyglot.HostClassLoader$JarLoader$ZipUtils$Info.offset:J
            invokestatic com.oracle.truffle.polyglot.HostClassLoader$JarLoader$ZipUtils.getInputStream:(Ljava/nio/channels/SeekableByteChannel;J)Ljava/io/InputStream;
            areturn
        end local 0 // com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/HostClassLoader$JarLoader$1;
    Exceptions:
      throws java.io.IOException
}
SourceFile: "HostClassLoader.java"
EnclosingMethod: com.oracle.truffle.polyglot.HostClassLoader$JarLoader.findResource:(Ljava/lang/String;)Lcom/oracle/truffle/polyglot/HostClassLoader$Resource;
NestHost: com.oracle.truffle.polyglot.HostClassLoader
InnerClasses:
  private final JarLoader = com.oracle.truffle.polyglot.HostClassLoader$JarLoader of com.oracle.truffle.polyglot.HostClassLoader
  com.oracle.truffle.polyglot.HostClassLoader$JarLoader$1
  final ZipUtils = com.oracle.truffle.polyglot.HostClassLoader$JarLoader$ZipUtils of com.oracle.truffle.polyglot.HostClassLoader$JarLoader
  final Info = com.oracle.truffle.polyglot.HostClassLoader$JarLoader$ZipUtils$Info of com.oracle.truffle.polyglot.HostClassLoader$JarLoader$ZipUtils
  private abstract Resource = com.oracle.truffle.polyglot.HostClassLoader$Resource of com.oracle.truffle.polyglot.HostClassLoader