Typed Variable Declaration error

[Keith Young]

I'm feeling slightly brain-dead this morning, and can't for the life of me
see what is causing the errors below (code after errors):

2012/11/26 09:23:41 ERROR - jmeter.util.BeanShellInterpreter: Error
invoking bsh method: eval Sourced file: inline evaluation of: ``//because
this is a post-processor we need to use the prev variable to //get the . .
. '' : Typed variable declaration
2012/11/26 09:23:41 WARN  - jmeter.extractor.BeanShellPostProcessor:
Problem in BeanShell script org.apache.jorphan.util.JMeterException: Error
invoking bsh method: eval Sourced file: inline evaluation of: ``//because
this is a post-processor we need to use the prev variable to //get the . .
. '' : Typed variable declaration

BeanShell PostProcessor:
//because this is a post-processor we need to use the prev variable to
//get the label (i.e. the sampler is no longer in the current scope)
samplerLabel = prev.getSampleLabel();
logLabel = "[" + samplerLabel + " BSH PostProcessor] ";

String[] qsAra = new URL(prev.getRedirectLocation()).getQuery().split("&");
String paramKeys = "";

for(String param : qsAra){
  //log.info(logLabel+"param found: " + param);
  String[] qsParam = param.split("=");
  //only start adding the split token after we have at least one key in the
string
  if(paramKeys.length() > 0){
    paramKeys += "/";
  }
  paramKeys += qsParam[0];
  vars.put(qsParam[0],qsParam[1]);
}

vars.put("paramKeys", paramKeys);


Does anyone have an idea why that error is being thrown?