https://www.graalvm.org/ 
class org.graalvm.compiler.virtual.phases.ea.EffectList$1 implements java.util.Iterator<org.graalvm.compiler.virtual.phases.ea.EffectList$Effect>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.graalvm.compiler.virtual.phases.ea.EffectList$1
  super_class: java.lang.Object
{
  int index;
    descriptor: I
    flags: (0x0000) 

  final int listSize;
    descriptor: I
    flags: (0x0010) ACC_FINAL

  final org.graalvm.compiler.virtual.phases.ea.EffectList this$0;
    descriptor: Lorg/graalvm/compiler/virtual/phases/ea/EffectList;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.graalvm.compiler.virtual.phases.ea.EffectList);
    descriptor: (Lorg/graalvm/compiler/virtual/phases/ea/EffectList;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.graalvm.compiler.virtual.phases.ea.EffectList$1 this
         0: .line 138
            aload 0 /* this */
            aload 1
            putfield org.graalvm.compiler.virtual.phases.ea.EffectList$1.this$0:Lorg/graalvm/compiler/virtual/phases/ea/EffectList;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 141
            aload 0 /* this */
            aload 1
            getfield org.graalvm.compiler.virtual.phases.ea.EffectList.size:I
            putfield org.graalvm.compiler.virtual.phases.ea.EffectList$1.listSize:I
         2: .line 138
            return
        end local 0 // org.graalvm.compiler.virtual.phases.ea.EffectList$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/graalvm/compiler/virtual/phases/ea/EffectList$1;
    MethodParameters:
        Name  Flags
      this$0  final

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.virtual.phases.ea.EffectList$1 this
         0: .line 145
            aload 0 /* this */
            getfield org.graalvm.compiler.virtual.phases.ea.EffectList$1.index:I
            aload 0 /* this */
            getfield org.graalvm.compiler.virtual.phases.ea.EffectList$1.listSize:I
            if_icmpge 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // org.graalvm.compiler.virtual.phases.ea.EffectList$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/graalvm/compiler/virtual/phases/ea/EffectList$1;

  public org.graalvm.compiler.virtual.phases.ea.EffectList$Effect next();
    descriptor: ()Lorg/graalvm/compiler/virtual/phases/ea/EffectList$Effect;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.virtual.phases.ea.EffectList$1 this
         0: .line 150
            aload 0 /* this */
            getfield org.graalvm.compiler.virtual.phases.ea.EffectList$1.this$0:Lorg/graalvm/compiler/virtual/phases/ea/EffectList;
            getfield org.graalvm.compiler.virtual.phases.ea.EffectList.effects:[Lorg/graalvm/compiler/virtual/phases/ea/EffectList$Effect;
            aload 0 /* this */
            dup
            getfield org.graalvm.compiler.virtual.phases.ea.EffectList$1.index:I
            dup_x1
            iconst_1
            iadd
            putfield org.graalvm.compiler.virtual.phases.ea.EffectList$1.index:I
            aaload
            areturn
        end local 0 // org.graalvm.compiler.virtual.phases.ea.EffectList$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/virtual/phases/ea/EffectList$1;

  public void remove();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.virtual.phases.ea.EffectList$1 this
         0: .line 155
            new java.lang.UnsupportedOperationException
            dup
            invokespecial java.lang.UnsupportedOperationException.<init>:()V
            athrow
        end local 0 // org.graalvm.compiler.virtual.phases.ea.EffectList$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/virtual/phases/ea/EffectList$1;

  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.compiler.virtual.phases.ea.EffectList$1.next:()Lorg/graalvm/compiler/virtual/phases/ea/EffectList$Effect;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/Object;Ljava/util/Iterator<Lorg/graalvm/compiler/virtual/phases/ea/EffectList$Effect;>;
SourceFile: "EffectList.java"
EnclosingMethod: org.graalvm.compiler.virtual.phases.ea.EffectList.iterator:()Ljava/util/Iterator;
NestHost: org.graalvm.compiler.virtual.phases.ea.EffectList
InnerClasses:
  org.graalvm.compiler.virtual.phases.ea.EffectList$1
  public abstract Effect = org.graalvm.compiler.virtual.phases.ea.EffectList$Effect of org.graalvm.compiler.virtual.phases.ea.EffectList