executeCommandLine as String not works in 1.8

Setup, Configuration and Use Scripts & Rules
1

This line works in 1.7 and not working in 1.8

var String answer = executeCommandLine("/usr/bin/ssh admin@192.168.1.4 /usr/bin/mysms '" + SMS.state.toString + "'" , 2000)

This is works

executeCommandLine("/usr/bin/ssh admin@192.168.1.4 /usr/bin/mysms '" + SMS.state.toString + "'" )

May be bug?