Runing mysqldump from java code won't dump triggers

This is how i make mysql dumps from java

public static boolean mysqlDump(String destination){
File back=new File("tempsdfsdf.fdr");
Runtime rt = Runtime.getRuntime();
FileWriter fw=null; 
try { 
    fw = new FileWriter(back); 
} 
catch (IOException ex) {
    return false;
} 
Process child; 
try {
    child = rt.exec("mysqldump -h"+generals.DATABASE_SERVER+" -u"+DATABASE_USER+" -p"+DATABASE_PASS+" --single-transaction --routines databasename -r"+destination);
    InputStream in = child.getInputStream(); 
    InputStreamReader xx = new InputStreamReader(in,"utf8"); 
    char[] chars=new char[1024]; 
    int ibyte=0; 
    while((ibyte=xx.read(chars))>0) 
    { 
    fw.write(chars); 
    } 
    fw.close(); 
    Utils.deleteFile(back);
} catch (IOException ex) {
    Logger.getLogger(FRMTestare.class.getName()).log(Level.SEVERE, null, ex);
    return false;
}
return true;

}

The dump file is "destination",but i must simulate writing of InputStream() to a file to ensure that "destination" file is fully created when threat ends so that i can zip-it in another threat.Anyway this is not important! My question is why when i run the command in cmd is dumping triggers but when i run the same command using Runtime.exec the triggers are not dumped . Sorry ,the code i a mess but i lost all day changing it to dump triggers. Thanks!

Copyright License：
Author:「Cioban Andrei」,Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.
Link to：https://stackoverflow.com/questions/14237280/runing-mysqldump-from-java-code-wont-dump-triggers