install license file seems not persisted

[LijunYu81]

env:
java8
TrueLicense:4.0.3
Linux

case:
I followed the latest doc to genered three submodels and use the api to install the license file.
Windows: which is the dev os, I can successfully install license file in one java application, and verify it suceessfully in another java application.
Linux: I installed the license file successfully and verify it ok, but after a while(~30 minutes) or restart the java application , it tell me no license file found when I use LicenseManager.get().load() or LicenseManager.get().verify().