public virtual global::java.util.Map_Entry firstEntry()
{
return global::MonoJavaBridge.JavaBridge.CallIJavaObjectMethod<java.util.Map_Entry>(this, global::java.util.TreeMap.staticClass, "firstEntry", "()Ljava/util/Map$Entry;", ref global::java.util.TreeMap._m18) as java.util.Map_Entry;
}