How to use the java.util.AbstractList function in java

function(a){
if(this.lastRet==-1)throw new IllegalStateException();
this.checkForComodification();
try{
this.b$["java.util.AbstractList"].set(this.lastRet,a);
this.expectedModCount=this.b$["java.util.AbstractList"].modCount;
}catch(e){
if($_O(e,IndexOutOfBoundsException)){
throw new java.util.ConcurrentModificationException();
}else{
throw e;
}
}
},"~O");
$_V(c$,"add",

function(a){
if(this.expectedModCount==this.b$["java.util.AbstractList"].modCount){
try{
this.b$["java.util.AbstractList"].add(this.pos+1,a);
}catch(e){
if($_O(e,IndexOutOfBoundsException)){
throw new java.util.NoSuchElementException();
}else{
throw e;
}
}
this.pos++;
this.lastPosition=-1;
if(this.b$["java.util.AbstractList"].modCount!=this.expectedModCount){
this.expectedModCount++;
}}else{
throw new java.util.ConcurrentModificationException();
}},"~O");
$_V(c$,"hasPrevious",

function(a){
Clazz.superConstructor(this,java.util.AbstractList.FullListIterator);
if(0<=a&&a<=this.b$["java.util.AbstractList"].size()){
this.pos=a-1;
}else{
throw new IndexOutOfBoundsException();
}},"~N");
Clazz.overrideMethod(c$,"add",

function(a){
if(this.expectedModCount==this.b$["java.util.AbstractList"].modCount){
try{
this.b$["java.util.AbstractList"].add(this.pos+1,a);
}catch(e){
if(Clazz.instanceOf(e,IndexOutOfBoundsException)){
throw new java.util.NoSuchElementException();
}else{
throw e;
}
}
this.pos++;
this.lastPosition=-1;
if(this.b$["java.util.AbstractList"].modCount!=this.expectedModCount){
this.expectedModCount++;
}}else{
throw new java.util.ConcurrentModificationException();
}},"~O");

function(){
return this.cursor!=this.b$["java.util.AbstractList"].size();
});
$_V(c$,"next",

function(a){
if(this.expectedModCount==this.b$["java.util.AbstractList"].modCount){
try{
this.b$["java.util.AbstractList"].set(this.lastPosition,a);
}catch(e){
if(Clazz.instanceOf(e,IndexOutOfBoundsException)){
throw new IllegalStateException();
}else{
throw e;
}
}
}else{
throw new java.util.ConcurrentModificationException();
}},"~O");
c$=Clazz.p0p();

function(){
if(this.expectedModCount==this.b$["java.util.AbstractList"].modCount){
try{
var a=this.b$["java.util.AbstractList"].get(this.pos);
this.lastPosition=this.pos;
this.pos--;
return a;
}catch(e){
if($_O(e,IndexOutOfBoundsException)){
throw new java.util.NoSuchElementException();
}else{
throw e;
}
}
}throw new java.util.ConcurrentModificationException();
});
$_V(c$,"previousIndex",

function(a){
if(this.expectedModCount==this.b$["java.util.AbstractList"].modCount){
try{
this.b$["java.util.AbstractList"].add(this.pos+1,a);
}catch(e){
if(Clazz.instanceOf(e,IndexOutOfBoundsException)){
throw new java.util.NoSuchElementException();
}else{
throw e;
}
}
this.pos++;
this.lastPosition=-1;
if(this.b$["java.util.AbstractList"].modCount!=this.expectedModCount){
this.expectedModCount++;
}}else{
throw new java.util.ConcurrentModificationException();
}},"~O");
Clazz.overrideMethod(c$,"hasPrevious",

function(){
this.checkForComodification();
try{
var a=this.cursor-1;
var b=this.b$["java.util.AbstractList"].get(a);
this.lastRet=this.cursor=a;
return b;
}catch(e){
if($_O(e,IndexOutOfBoundsException)){
this.checkForComodification();
throw new java.util.NoSuchElementException();
}else{
throw e;
}
}
});
$_V(c$,"nextIndex",

function(){
if(this.expectedModCount==this.b$["java.util.AbstractList"].modCount){
try{
var a=this.b$["java.util.AbstractList"].get(this.pos+1);
this.lastPosition=++this.pos;
return a;
}catch(e){
if(Clazz.instanceOf(e,IndexOutOfBoundsException)){
throw new java.util.NoSuchElementException();
}else{
throw e;
}
}
}throw new java.util.ConcurrentModificationException();
});
Clazz.overrideMethod(c$,"remove",