https://www.graalvm.org/ 
class org.graalvm.component.installer.DownloadURLIterable$It implements java.util.Iterator<org.graalvm.component.installer.ComponentParam>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.graalvm.component.installer.DownloadURLIterable$It
  super_class: java.lang.Object
{
  final org.graalvm.component.installer.DownloadURLIterable this$0;
    descriptor: Lorg/graalvm/component/installer/DownloadURLIterable;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.graalvm.component.installer.DownloadURLIterable);
    descriptor: (Lorg/graalvm/component/installer/DownloadURLIterable;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.graalvm.component.installer.DownloadURLIterable$It this
         0: .line 58
            aload 0 /* this */
            aload 1
            putfield org.graalvm.component.installer.DownloadURLIterable$It.this$0:Lorg/graalvm/component/installer/DownloadURLIterable;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.graalvm.component.installer.DownloadURLIterable$It this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/component/installer/DownloadURLIterable$It;
    MethodParameters:
        Name  Flags
      this$0  final

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.component.installer.DownloadURLIterable$It this
         0: .line 62
            aload 0 /* this */
            getfield org.graalvm.component.installer.DownloadURLIterable$It.this$0:Lorg/graalvm/component/installer/DownloadURLIterable;
            getfield org.graalvm.component.installer.DownloadURLIterable.input:Lorg/graalvm/component/installer/CommandInput;
            invokeinterface org.graalvm.component.installer.CommandInput.hasParameter:()Z
            ireturn
        end local 0 // org.graalvm.component.installer.DownloadURLIterable$It this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/component/installer/DownloadURLIterable$It;

  public org.graalvm.component.installer.ComponentParam next();
    descriptor: ()Lorg/graalvm/component/installer/ComponentParam;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=5, args_size=1
        start local 0 // org.graalvm.component.installer.DownloadURLIterable$It this
         0: .line 67
            aload 0 /* this */
            getfield org.graalvm.component.installer.DownloadURLIterable$It.this$0:Lorg/graalvm/component/installer/DownloadURLIterable;
            getfield org.graalvm.component.installer.DownloadURLIterable.input:Lorg/graalvm/component/installer/CommandInput;
            invokeinterface org.graalvm.component.installer.CommandInput.nextParameter:()Ljava/lang/String;
            astore 1 /* s */
        start local 1 // java.lang.String s
         1: .line 70
            new java.net.URL
            dup
            aload 1 /* s */
            invokespecial java.net.URL.<init>:(Ljava/lang/String;)V
            astore 2 /* u */
        start local 2 // java.net.URL u
         2: .line 71
            goto 5
        end local 2 // java.net.URL u
      StackMap locals: org.graalvm.component.installer.DownloadURLIterable$It java.lang.String
      StackMap stack: java.net.MalformedURLException
         3: astore 3 /* ex */
        start local 3 // java.net.MalformedURLException ex
         4: .line 72
            aload 0 /* this */
            getfield org.graalvm.component.installer.DownloadURLIterable$It.this$0:Lorg/graalvm/component/installer/DownloadURLIterable;
            getfield org.graalvm.component.installer.DownloadURLIterable.feedback:Lorg/graalvm/component/installer/Feedback;
            ldc "URL_InvalidDownloadURL"
            aload 3 /* ex */
            iconst_2
            anewarray java.lang.Object
            dup
            iconst_0
            aload 1 /* s */
            aastore
            dup
            iconst_1
            aload 3 /* ex */
            invokevirtual java.net.MalformedURLException.getLocalizedMessage:()Ljava/lang/String;
            aastore
            invokeinterface org.graalvm.component.installer.Feedback.failure:(Ljava/lang/String;Ljava/lang/Throwable;[Ljava/lang/Object;)Ljava/lang/RuntimeException;
            athrow
        end local 3 // java.net.MalformedURLException ex
        start local 2 // java.net.URL u
         5: .line 74
      StackMap locals: java.net.URL
      StackMap stack:
            aload 0 /* this */
            getfield org.graalvm.component.installer.DownloadURLIterable$It.this$0:Lorg/graalvm/component/installer/DownloadURLIterable;
            getfield org.graalvm.component.installer.DownloadURLIterable.input:Lorg/graalvm/component/installer/CommandInput;
            ldc "n"
            invokeinterface org.graalvm.component.installer.CommandInput.optValue:(Ljava/lang/String;)Ljava/lang/String;
            ifnonnull 6
            iconst_1
            goto 7
      StackMap locals:
      StackMap stack:
         6: iconst_0
      StackMap locals:
      StackMap stack: int
         7: istore 3 /* progress */
        start local 3 // boolean progress
         8: .line 75
            new org.graalvm.component.installer.DownloadURLIterable$DownloadURLParam
            dup
            aload 2 /* u */
            aload 1 /* s */
            aload 1 /* s */
            aload 0 /* this */
            getfield org.graalvm.component.installer.DownloadURLIterable$It.this$0:Lorg/graalvm/component/installer/DownloadURLIterable;
            getfield org.graalvm.component.installer.DownloadURLIterable.feedback:Lorg/graalvm/component/installer/Feedback;
            iload 3 /* progress */
            invokespecial org.graalvm.component.installer.DownloadURLIterable$DownloadURLParam.<init>:(Ljava/net/URL;Ljava/lang/String;Ljava/lang/String;Lorg/graalvm/component/installer/Feedback;Z)V
            astore 4 /* p */
        start local 4 // org.graalvm.component.installer.remote.RemoteComponentParam p
         9: .line 76
            aload 4 /* p */
            aload 0 /* this */
            getfield org.graalvm.component.installer.DownloadURLIterable$It.this$0:Lorg/graalvm/component/installer/DownloadURLIterable;
            invokevirtual org.graalvm.component.installer.DownloadURLIterable.isVerifyJars:()Z
            invokevirtual org.graalvm.component.installer.remote.RemoteComponentParam.setVerifyJars:(Z)V
        10: .line 77
            aload 4 /* p */
            areturn
        end local 4 // org.graalvm.component.installer.remote.RemoteComponentParam p
        end local 3 // boolean progress
        end local 2 // java.net.URL u
        end local 1 // java.lang.String s
        end local 0 // org.graalvm.component.installer.DownloadURLIterable$It this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   11     0      this  Lorg/graalvm/component/installer/DownloadURLIterable$It;
            1   11     1         s  Ljava/lang/String;
            2    3     2         u  Ljava/net/URL;
            5   11     2         u  Ljava/net/URL;
            4    5     3        ex  Ljava/net/MalformedURLException;
            8   11     3  progress  Z
            9   11     4         p  Lorg/graalvm/component/installer/remote/RemoteComponentParam;
      Exception table:
        from    to  target  type
           1     2       3  Class java.net.MalformedURLException

  public java.lang.Object next();
    descriptor: ()Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokevirtual org.graalvm.component.installer.DownloadURLIterable$It.next:()Lorg/graalvm/component/installer/ComponentParam;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/Object;Ljava/util/Iterator<Lorg/graalvm/component/installer/ComponentParam;>;
SourceFile: "DownloadURLIterable.java"
NestHost: org.graalvm.component.installer.DownloadURLIterable
InnerClasses:
  DownloadURLParam = org.graalvm.component.installer.DownloadURLIterable$DownloadURLParam of org.graalvm.component.installer.DownloadURLIterable
  It = org.graalvm.component.installer.DownloadURLIterable$It of org.graalvm.component.installer.DownloadURLIterable