diff --git a/src/main/java/org/apache/commons/collections4/map/LRUMap.java b/src/main/java/org/apache/commons/collections4/map/LRUMap.java
index 7f411cb0e..ee13d397a 100644
--- a/src/main/java/org/apache/commons/collections4/map/LRUMap.java
+++ b/src/main/java/org/apache/commons/collections4/map/LRUMap.java
@@ -271,8 +271,7 @@ public class LRUMap<K, V>
             // remove
             if(entry.before == null) {
                 throw new IllegalStateException("Entry.before is null." +
-                    " Please check that your keys are immutable, and that you have used synchronization properly." +
-                    " If so, then please report this to dev@commons.apache.org as a bug.");
+                    " This should not occur if your keys are immutable, and you have used synchronization properly.");
             }
             entry.before.after = entry.after;
             entry.after.before = entry.before;
@@ -283,7 +282,7 @@ public class LRUMap<K, V>
             header.before = entry;
         } else if (entry == header) {
             throw new IllegalStateException("Can't move header to MRU" +
-                " (please report this to dev@commons.apache.org)");
+                    " This should not occur if your keys are immutable, and you have used synchronization properly.");
         }
     }
 
@@ -334,8 +333,7 @@ public class LRUMap<K, V>
                     throw new IllegalStateException(
                         "Entry.after=null, header.after=" + header.after + " header.before=" + header.before +
                         " key=" + key + " value=" + value + " size=" + size + " maxSize=" + maxSize +
-                        " Please check that your keys are immutable, and that you have used synchronization properly." +
-                        " If so, then please report this to dev@commons.apache.org as a bug.");
+                        " This should not occur if your keys are immutable, and you have used synchronization properly.");
                 }
             } else {
                 removeLRUEntry = removeLRU(reuse);
@@ -346,9 +344,8 @@ public class LRUMap<K, V>
                     throw new IllegalStateException(
                         "reuse=null, header.after=" + header.after + " header.before=" + header.before +
                         " key=" + key + " value=" + value + " size=" + size + " maxSize=" + maxSize +
-                        " Please check that your keys are immutable, and that you have used synchronization properly." +
-                        " If so, then please report this to dev@commons.apache.org as a bug.");
-                }
+                        " This should not occur if your keys are immutable, and you have used synchronization properly.");
+            }
                 reuseMapping(reuse, hashIndex, hashCode, key, value);
             } else {
                 super.addMapping(hashIndex, hashCode, key, value);
@@ -387,8 +384,7 @@ public class LRUMap<K, V>
                 throw new IllegalStateException(
                     "Entry.next=null, data[removeIndex]=" + data[removeIndex] + " previous=" + previous +
                     " key=" + key + " value=" + value + " size=" + size + " maxSize=" + maxSize +
-                    " Please check that your keys are immutable, and that you have used synchronization properly." +
-                    " If so, then please report this to dev@commons.apache.org as a bug.");
+                    " This should not occur if your keys are immutable, and you have used synchronization properly.");
             }
 
             // reuse the entry
@@ -400,8 +396,7 @@ public class LRUMap<K, V>
             throw new IllegalStateException(
                     "NPE, entry=" + entry + " entryIsHeader=" + (entry==header) +
                     " key=" + key + " value=" + value + " size=" + size + " maxSize=" + maxSize +
-                    " Please check that your keys are immutable, and that you have used synchronization properly." +
-                    " If so, then please report this to dev@commons.apache.org as a bug.");
+                    " This should not occur if your keys are immutable, and you have used synchronization properly.");
         }
     }