I want to write my.properties file. My query is that In which path should it be created. I have installed glassfish on my Linux 14.04 machine on this path: /opt/glassfish4 and created the file my.properties at: /opt/glassfish4/glassfish/domains/swManzana/config/my.properties

This is my Code:
Boolean wflag = false;
String wnomfile="my.properties"
Properties prop = new Properties();
OutputStream output = null;
System.out.println("Inicio Archivo Properties.. " + wnomfile);
try {
// output = new FileOutputStream("config.properties");
output = new FileOutputStream(wnomfile);
System.out.println("Archivo Creado Properties..");
// set the properties value
prop.setProperty("database", "localhost");
prop.setProperty("dbuser","mkyong");
prop.setProperty("dbpassword","password");
// save properties to project root folder
prop.store(output,null);
System.out.println("Archivo Creado/Grabado Properties..");
wflag=true;
}catch(IOExceptionio){
System.out.println("Error Archivo Properties Exception..");
io.printStackTrace();
}finally{
System.out.println("Archivo Properties inicio Finally..");
if(output!=null){
try{
System.out.println("Archivo Properties Antes de CLOSE Finally..");
output.close();
System.out.println("Archivo Properties Grabado Finally..");
}catch(IOExceptione){
System.out.println("Archivo Properties Exception-Finally..");
e.printStackTrace();
}
}
}
returnwflag;

While executing the above code my.properties file not created. Why Tomcat is not creating this file. I have properly checked my tomcat installation and found no issues in access web Pages and ports. Can anyone suggest me some knowledgeable tutorials URL Links on [ Register or Signin to view external links. ] , so that I can get my query resolved faster.