JEXL-246:
Quiesced down logging, was missing check on actual signature diff

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jexl/trunk@1821853 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/commons/jexl3/internal/introspection/ClassMap.java b/src/main/java/org/apache/commons/jexl3/internal/introspection/ClassMap.java
index 7871fa7..dd91c89 100644
--- a/src/main/java/org/apache/commons/jexl3/internal/introspection/ClassMap.java
+++ b/src/main/java/org/apache/commons/jexl3/internal/introspection/ClassMap.java
@@ -285,9 +285,9 @@
                     // add method to byKey cache; do not override
                     MethodKey key = new MethodKey(mi);
                     Method pmi = cache.byKey.putIfAbsent(key, mi);
-                    if (pmi != null && log.isDebugEnabled()) {
+                    if (pmi != null && log.isDebugEnabled() && !key.equals(new MethodKey(pmi))) {
                         // foo(int) and foo(Integer) have the same signature for JEXL
-                        log.debug("Method "+ pmi + " is already registered, key: " + key);
+                        log.debug("Method "+ pmi + " is already registered, key: " + key.debugString());
                     }
                 }
             }