Triggering this remote job: <REMOTE_BUILD_JOB>
Not checking if the remote job <REMOTE_BUILD_JOB> is building.
This job is build #[12] on the remote server.
Triggering remote job now.
FATAL: Invalid JSON String
net.sf.json.JSONException: Invalid JSON String
	at net.sf.json.JSONSerializer.toJSON(JSONSerializer.java:143)
	at net.sf.json.JSONSerializer.toJSON(JSONSerializer.java:103)
	at net.sf.json.JSONSerializer.toJSON(JSONSerializer.java:84)
	at org.jenkinsci.plugins.ParameterizedRemoteTrigger.RemoteBuildConfiguration.sendHTTPCall(RemoteBuildConfiguration.java:698)
	at org.jenkinsci.plugins.ParameterizedRemoteTrigger.RemoteBuildConfiguration.perform(RemoteBuildConfiguration.java:529)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:784)
	at hudson.model.Build$BuildExecution.build(Build.java:199)
	at hudson.model.Build$BuildExecution.doRun(Build.java:160)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:565)
	at hudson.model.Run.execute(Run.java:1670)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
	at hudson.model.ResourceController.execute(ResourceController.java:88)
	at hudson.model.Executor.run(Executor.java:231)