Merge branch 'pr-190'

Closes #190 (rebased onto pmd/5.4.x)

pmd-test/src/main/java/net/sourceforge/pmd/testframework/RuleTst.java

@@ -219,9 +219,7 @@ public abstract class RuleTst {
             ctx.setLanguageVersion(languageVersion);
             ctx.setIgnoreExceptions(false);
             RuleSet rules = new RuleSetFactory().createSingleRuleRuleSet(rule);
-            rules.start(ctx);
             p.getSourceCodeProcessor().processSourceCode(new StringReader(code), new RuleSets(rules), ctx);
-            rules.end(ctx);
         } catch (Exception e) {
             throw new RuntimeException(e);
         }