Report missing or inaccessible lib and lib/ext directories instead of crashing with NPE
Report missing or inaccessible lib and lib/ext directories instead of crashing with NPE


git-svn-id: 7c053b8fbd1fb5868f764c6f9536fc6a9bbe7da9@323701 13f79535-47bb-0310-9956-ffa450edef68

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