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

function(){
return this.b$["java.util.IdentityHashMap"].size();
});
Clazz.overrideMethod(c$,"clear",

function(){
return new java.util.IdentityHashMap.IdentityHashMapIterator((($_D("java.util.IdentityHashMap$2$1")?0:java.util.IdentityHashMap.$IdentityHashMap$2$1$()),$_N(java.util.IdentityHashMap$2$1,this,null)),this.b$["java.util.IdentityHashMap"]);
});
$_V(c$,"remove",

function(){
this.b$["java.util.IdentityHashMap"].clear();
});
$_V(c$,"remove",

function(object){
return this.b$["java.util.IdentityHashMap"].containsValue(object);
},"~O");
$_V(c$,"size",

function(key){
if(this.b$["java.util.IdentityHashMap"].containsKey(key)){
this.b$["java.util.IdentityHashMap"].remove(key);
return true;
}return false;
},"~O");
$_V(c$,"iterator",

function(key){
if(this.b$["java.util.IdentityHashMap"].containsKey(key)){
this.b$["java.util.IdentityHashMap"].remove(key);
return true;
}return false;
},"~O");
$_V(c$,"iterator",

function(){
return this.b$["java.util.IdentityHashMap"].size();
});
$_V(c$,"clear",

function(object){
return this.b$["java.util.IdentityHashMap"].containsValue(object);
},"~O");
Clazz.overrideMethod(c$,"size",

function(key){
if(this.b$["java.util.IdentityHashMap"].containsKey(key)){
this.b$["java.util.IdentityHashMap"].remove(key);
return true;
}return false;
},"~O");
Clazz.overrideMethod(c$,"iterator",

function(object){
return this.b$["java.util.IdentityHashMap"].containsKey(object);
},"~O");
Clazz.overrideMethod(c$,"size",