Move back to Java 1.6
Move back to Java 1.6

opentelecoms-org/jsmpp,openam-org-ru/org.jsmpp,pmoerenhout/jsmpp-1,amdtelecom/jsmpp,pmoerenhout/jsmpp-1,amdtelecom/jsmpp,openam-org-ru/org.jsmpp,opentelecoms-org/jsmpp