java.io.IOException: Permission denied while creating new file from Tomcat in Grails -

i have grails application deployed on tomcat 7. here code fragment tries create new file:

def path = "/var/csvs" + file.fileitem.filename def fileinputstream = file.inputstream file f = new file(path) if (!f.exists()) {    f.createnewfile() } 

i exception:

permission denied. stacktrace follows: java.io.ioexception: permission denied     @ java.io.file.createnewfile(file.java:1006) 

i have given rwx permission tomcat7(the user under tomcat running). why not able create new file? "/var/csvs" trying create file relative tomcat webapps directory? if yes how should create file @ /var/csvs (where csvs folder have created under /var)?

edit:

here permissions on /var/csvs folder:

root@myip:/# ls -ld /var/csvs drwxrwxrwx 2 tomcat7 tomcat7 4096 jun  3 15:44 /var/csvs 

so tomcat7 owner of directory , mode 777

shouldn't code

def path = "/var/csvs/" + file.fileitem.filename // notice trailing fwd slash 

otherwise you're trying write /var directory.