Need help running java restful web service as a Linux service

[hansini]

I have /etc/init.d/calc created to launch Calculator restful web service application;
When calc run as linux service I'm getting NullPointerException, but when I launch application from a command line, it works great.

Please could you tell me what I need to verify to address this issue.

The Calculator application code can be found at
http://theopentutorials.com/examples...jersey-jax-rs/.


#!/bin/sh
# chkconfig: 35 99 99
# description : calc service script

# Source function library.
. /etc/init.d/functions
. /etc/profile

start()
{
$APP_HOME/bin/calc --start &
}

stop()
{
$APP_HOME/bin/calc --stop
}

status()
{
$APP_HOME/bin/calc --status
}

case "$1" in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
status)
status
;;
*)
echo $"Usage: $0 {start|stop|restart|status}"

esac
exit 0



Here is the output

Jun 11, 2014 4:18:07 PM com.sun.jersey.api.core.ClasspathResourceConfig init
INFO: Scanning for root resource and provider classes in the paths:
.
/home/calc/jars/jettison-1.1.jar
/home/calc/jars/commons-lang3-3.3.1.jar
/home/calc/jars/jersey-core-1.18.jar
/home/calc/jars/jersey-server-1.18.jar
/home/calc/jars/commons-cli-1.2.jar
/home/calc/jars/calc-utils.jar
/home/calc/jars/jsr311-api-1.1.1.jar
/home/calc/jars/log4j-1.2.16.jar
/home/calc/jars/jackson-core-asl-1.9.2.jar
/home/calc/jars/jackson-mapper-asl-1.9.2.jar
/home/calc/jars/jersey-servlet-1.18.jar
/home/calc/jars/jersey-json-1.18.jar
/home/calc/jars/logback-core-1.1.1.jar
/home/calc/jars/commons-collections-3.2.1.jar
/home/calc/jars/logback-classic-1.1.1.jar
/home/calc/jars/http-2.2.1.jar
/home/calc/jars/jackson-jaxrs-1.9.2.jar
/home/calc/jars/jersey-client-1.18.jar
/home/calc/jars/asm-3.1.jar
/home/calc/jars/jackson-xc-1.9.2.jar
/home/calc/jars/slf4j-api-1.7.6.jar
Exception in thread "main" java.lang.NullPointerException
at com.sun.jersey.core.spi.scanning.FilesScanner.scanDir(FilesScanner.java:93)
at com.sun.jersey.core.spi.scanning.FilesScanner.scanDir(FilesScanner.java:95)
at com.sun.jersey.core.spi.scanning.FilesScanner.scanDir(FilesScanner.java:95)
at com.sun.jersey.core.spi.scanning.FilesScanner.scan(FilesScanner.java:80)
at com.sun.jersey.core.spi.scanning.FilesScanner.scan(FilesScanner.java:74)
at com.sun.jersey.api.core.ScanningResourceConfig.init(ScanningResourceConfig.java:80)
at com.sun.jersey.api.core.ClasspathResourceConfig.init(ClasspathResourceConfig.java:119)
at com.sun.jersey.api.core.ClasspathResourceConfig.<init>(ClasspathResourceConfig.java:101)
at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:263)
at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:246)
at com.sun.jersey.api.container.httpserver.HttpServerFactory.create(HttpServerFactory.java:117)
at com.sun.jersey.api.container.httpserver.HttpServerFactory.create(HttpServerFactory.java:92)
at com.utils.Config.CalcRESTStartUp.main(Unknown Source)


Thanks,

[Xeel]

Have you tried publishing the web service on some java server (Tomcat for ex.) and run this server as a Linux service?