Workround for Java feature on Hudson, which reports "null" error if an arg is empty
Workround for Java feature on Hudson, which reports "null" error if an arg is empty

git-svn-id: 7c053b8fbd1fb5868f764c6f9536fc6a9bbe7da9@615542 13f79535-47bb-0310-9956-ffa450edef68

hizhangqi/jmeter-1,max3163/jmeter,kyroskoh/jmeter,fj11/jmeter,hizhangqi/jmeter-1,ra0077/jmeter,ThiagoGarciaAlves/jmeter,irfanah/jmeter,kschroeder/jmeter,kschroeder/jmeter,thomsonreuters/jmeter,vherilier/jmeter,liwangbest/jmeter,etnetera/jmeter,d0k1/jmeter,etnetera/jmeter,ubikloadpack/jmeter,max3163/jmeter,vherilier/jmeter,vherilier/jmeter,ra0077/jmeter,max3163/jmeter,etnetera/jmeter,hemikak/jmeter,DoctorQ/jmeter,thomsonreuters/jmeter,kyroskoh/jmeter,d0k1/jmeter,irfanah/jmeter,kschroeder/jmeter,DoctorQ/jmeter,kyroskoh/jmeter,d0k1/jmeter,fj11/jmeter,ubikloadpack/jmeter,d0k1/jmeter,hizhangqi/jmeter-1,DoctorQ/jmeter,hemikak/jmeter,tuanhq/jmeter,liwangbest/jmeter,vherilier/jmeter,etnetera/jmeter,ThiagoGarciaAlves/jmeter,fj11/jmeter,thomsonreuters/jmeter,hemikak/jmeter,tuanhq/jmeter,hemikak/jmeter,tuanhq/jmeter,ThiagoGarciaAlves/jmeter,ubikloadpack/jmeter,etnetera/jmeter,ubikfsabbe/jmeter,ubikfsabbe/jmeter,ra0077/jmeter,liwangbest/jmeter,max3163/jmeter,ubikfsabbe/jmeter,ubikloadpack/jmeter,irfanah/jmeter,ubikfsabbe/jmeter,ra0077/jmeter