public virtual global::System.Object headMap(global::java.lang.Object n1){
//XMLVM_BEGIN_WRAPPER[java.util.Collections$UnmodifiableSortedMap: java.util.SortedMap headMap(java.lang.Object)]
    global::System.Object _r0_o = null;
    global::System.Object _r1_o = null;
    global::System.Object _r2_o = null;
    global::System.Object _r3_o = null;
    _r2_o = this;
    _r3_o = n1;
    _r0_o = new global::java.util.Collections_2UnmodifiableSortedMap();
    _r1_o = ((global::java.util.Collections_2UnmodifiableSortedMap) _r2_o)._fsm;
    _r1_o = ((global::java.util.SortedMap) _r1_o).headMap((global::java.lang.Object) _r3_o);
    ((global::java.util.Collections_2UnmodifiableSortedMap) _r0_o).@this((global::java.util.SortedMap) _r1_o);
    return (global::java.util.SortedMap) _r0_o;
//XMLVM_END_WRAPPER[java.util.Collections$UnmodifiableSortedMap: java.util.SortedMap headMap(java.lang.Object)]
}
public static global::System.Object unmodifiableSortedMap(global::java.util.SortedMap n1){
//XMLVM_BEGIN_WRAPPER[java.util.Collections: java.util.SortedMap unmodifiableSortedMap(java.util.SortedMap)]
    global::System.Object _r0_o = null;
    global::System.Object _r1_o = null;
    _r1_o = n1;
    if (_r1_o != null) goto label8;
    _r0_o = new global::java.lang.NullPointerException();
    ((global::java.lang.NullPointerException) _r0_o).@this();
    throw new global::org.xmlvm._nExceptionAdapter((global::java.lang.NullPointerException) _r0_o);
    label8:;
    _r0_o = new global::java.util.Collections_2UnmodifiableSortedMap();
    ((global::java.util.Collections_2UnmodifiableSortedMap) _r0_o).@this((global::java.util.SortedMap) _r1_o);
    return (global::java.util.SortedMap) _r0_o;
//XMLVM_END_WRAPPER[java.util.Collections: java.util.SortedMap unmodifiableSortedMap(java.util.SortedMap)]
}