Runing in java application well but connector of Keystone is always null when using in android

[iou90]

the code:
Keystone keystone = new Keystone("http://10.10.10:5000/v2.0");

it works well in my java application but not in a android one.

Variables in Java app:
keystone Keystone (id=21)
connector JaxRs20Connector (id=21)
endpoint "http://10.10.10.249:5000/v2.0" (id=24)
ENDPOINTS EndpointsResource (id=25)
properties Properties (id=30)
ROLES RolesResource (id=32)
SERVICES ServicesResource (id=35)
TENANTS TenantsResource (id=40)
tokenProvider null
TOKENS TokensResource (id=42)
USERS UsersResource (id=44)

in Android:
keystone Keystone (id=831946137712)
connector null
endpoint "http://10.10.10.249:5000/v2.0" (id=831946137768)
ENDPOINTS EndpointsResource (id=831946142536)
properties Properties (id=831946137976)
ROLES RolesResource (id=831946141016)
SERVICES ServicesResource (id=831946141768)
TENANTS TenantsResource (id=831946139512)
tokenProvider null
TOKENS TokensResource (id=831946138760)
USERS UsersResource (id=831946140264)

so I'm so confusing with this. Am I missing something?