https://github.com/eclipse/eclipse-collections/eclipse-collections: Eclipse Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API and set of utility classes that work with any JDK compatible Collections, Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.
  • Craig P. Motlin
  • Donald Raab
  • Mohammad A. Rezaei
  • Hiroshi Ito
  • Nikhil J. Nanivadekar 
public class org.eclipse.collections.impl.iterator.UnmodifiableIntIterator implements org.eclipse.collections.api.iterator.MutableIntIterator
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.eclipse.collections.impl.iterator.UnmodifiableIntIterator
  super_class: java.lang.Object
{
  private final org.eclipse.collections.api.iterator.IntIterator intIterator;
    descriptor: Lorg/eclipse/collections/api/iterator/IntIterator;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(org.eclipse.collections.api.iterator.IntIterator);
    descriptor: (Lorg/eclipse/collections/api/iterator/IntIterator;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.iterator.UnmodifiableIntIterator this
        start local 1 // org.eclipse.collections.api.iterator.IntIterator intIterator
         0: .line 24
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 26
            aload 0 /* this */
            aload 1 /* intIterator */
            putfield org.eclipse.collections.impl.iterator.UnmodifiableIntIterator.intIterator:Lorg/eclipse/collections/api/iterator/IntIterator;
         2: .line 27
            return
        end local 1 // org.eclipse.collections.api.iterator.IntIterator intIterator
        end local 0 // org.eclipse.collections.impl.iterator.UnmodifiableIntIterator this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    3     0         this  Lorg/eclipse/collections/impl/iterator/UnmodifiableIntIterator;
            0    3     1  intIterator  Lorg/eclipse/collections/api/iterator/IntIterator;
    MethodParameters:
             Name  Flags
      intIterator  

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.iterator.UnmodifiableIntIterator this
         0: .line 32
            aload 0 /* this */
            getfield org.eclipse.collections.impl.iterator.UnmodifiableIntIterator.intIterator:Lorg/eclipse/collections/api/iterator/IntIterator;
            invokeinterface org.eclipse.collections.api.iterator.IntIterator.hasNext:()Z
            ireturn
        end local 0 // org.eclipse.collections.impl.iterator.UnmodifiableIntIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/iterator/UnmodifiableIntIterator;

  public int next();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.iterator.UnmodifiableIntIterator this
         0: .line 38
            aload 0 /* this */
            getfield org.eclipse.collections.impl.iterator.UnmodifiableIntIterator.intIterator:Lorg/eclipse/collections/api/iterator/IntIterator;
            invokeinterface org.eclipse.collections.api.iterator.IntIterator.next:()I
            ireturn
        end local 0 // org.eclipse.collections.impl.iterator.UnmodifiableIntIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/iterator/UnmodifiableIntIterator;

  public void remove();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.iterator.UnmodifiableIntIterator this
         0: .line 44
            new java.lang.UnsupportedOperationException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Cannot call remove() on "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokevirtual java.lang.Class.getSimpleName:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.UnsupportedOperationException.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // org.eclipse.collections.impl.iterator.UnmodifiableIntIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/iterator/UnmodifiableIntIterator;
}
SourceFile: "UnmodifiableIntIterator.java"