Bug 54268 - Improve CPU and memory usage

Factor out code
Bugzilla Id: 54268

git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1451929 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: cb248782ed

src/components/org/apache/jmeter/extractor/RegexExtractor.java

@@ -164,23 +164,7 @@ public class RegexExtractor extends AbstractScopedTestElement implements PostPro
         } catch (MalformedCachePatternException e) {
             log.error("Error in pattern: " + regex);
         } finally {
-            clearMatcherMemory(matcher, pattern);
+            JMeterUtils.clearMatcherMemory(matcher, pattern);
-        }
-    }
-
-    /**
-     * Hack to make matcher clean the two internal buffers it keeps in memory which size is equivalent to 
-     * the unzipped page size
-     * @param matcher {@link Perl5Matcher}
-     * @param pattern Pattern
-     */
-    private final void clearMatcherMemory(Perl5Matcher matcher, Pattern pattern) {
-        try {
-            if(pattern != null) {
-                matcher.matches("", pattern); // $NON-NLS-1$
-            }
-        } catch (Exception e) {
-            // NOOP
         }
     }
 

src/core/org/apache/jmeter/util/JMeterUtils.java

@@ -1309,4 +1309,20 @@ public class JMeterUtils implements UnitTestManager {
         System.gc();
         System.runFinalization();
     }
+    
+    /**
+     * Hack to make matcher clean the two internal buffers it keeps in memory which size is equivalent to 
+     * the unzipped page size
+     * @param matcher {@link Perl5Matcher}
+     * @param pattern Pattern
+     */
+    public static final void clearMatcherMemory(Perl5Matcher matcher, Pattern pattern) {
+        try {
+            if(pattern != null) {
+                matcher.matches("", pattern); // $NON-NLS-1$
+            }
+        } catch (Exception e) {
+            // NOOP
+        }
+    }
 }