https://eclipse.org/jetty/jetty-util: Utility classes for Jetty (Webtide) 
class org.eclipse.jetty.util.resource.JarResource$1 extends java.io.FilterInputStream
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.eclipse.jetty.util.resource.JarResource$1
  super_class: java.io.FilterInputStream
{
  final org.eclipse.jetty.util.resource.JarResource this$0;
    descriptor: Lorg/eclipse/jetty/util/resource/JarResource;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.eclipse.jetty.util.resource.JarResource, java.io.InputStream);
    descriptor: (Lorg/eclipse/jetty/util/resource/JarResource;Ljava/io/InputStream;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.eclipse.jetty.util.resource.JarResource$1 this
        start local 2 // java.io.InputStream $anonymous0
         0: .line 121
            aload 0 /* this */
            aload 1
            putfield org.eclipse.jetty.util.resource.JarResource$1.this$0:Lorg/eclipse/jetty/util/resource/JarResource;
            aload 0 /* this */
            aload 2 /* $anonymous0 */
            invokespecial java.io.FilterInputStream.<init>:(Ljava/io/InputStream;)V
            return
        end local 2 // java.io.InputStream $anonymous0
        end local 0 // org.eclipse.jetty.util.resource.JarResource$1 this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    1     0         this  Lorg/eclipse/jetty/util/resource/JarResource$1;
            0    1     2  $anonymous0  Ljava/io/InputStream;
    MethodParameters:
             Name  Flags
      this$0       final
      $anonymous0  

  public void close();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.eclipse.jetty.util.resource.JarResource$1 this
         0: .line 126
            aload 0 /* this */
            invokestatic org.eclipse.jetty.util.IO.getClosedStream:()Ljava/io/InputStream;
            putfield org.eclipse.jetty.util.resource.JarResource$1.in:Ljava/io/InputStream;
         1: .line 127
            return
        end local 0 // org.eclipse.jetty.util.resource.JarResource$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/eclipse/jetty/util/resource/JarResource$1;
}
SourceFile: "JarResource.java"
EnclosingMethod: org.eclipse.jetty.util.resource.JarResource.getInputStream:()Ljava/io/InputStream;
NestHost: org.eclipse.jetty.util.resource.JarResource
InnerClasses:
  org.eclipse.jetty.util.resource.JarResource$1