通过PHP的PHP + JAR Invoking.Jar没有按预期工作

My Application having a .jar file which will do some background syncing operation. I execute the .jar file in the cmd using java -jar myjar.jar it is working properly. If I invoke the .jar from the PHP using pclose(popen("start /B myjar.jar", "r")) or shell_exec("java -jar myjar.jar") , The .jar files Start executing and Stops immediately without throwing any error. Why is this Happening?

PHP Version: 7.0.28 32 Bit

Codeigniter: 3.26

JRE: java version "1.8.0_171" 32 bit

Additional information: I am Using a third party libary sboapi & sbowrapper from SAP. The .jar file stops working exactly when I call a function from this Library.