2 files changed, 12 insertions, 1 deletions
diff --git a/src/main/javassist/CtClass.java b/src/main/javassist/CtClass.java
index a96701b2..1b3b588b 100644
--- a/src/main/javassist/CtClass.java
+++ b/src/main/javassist/CtClass.java
@@ -249,6 +249,8 @@ public abstract class CtClass {
 
     void freeze() {}
 
+    /* Note: this method is overridden by CtClassType
+     */
     void checkModify() throws RuntimeException {
         if (isFrozen())
             throw new RuntimeException(getName() + " class is frozen");
diff --git a/src/main/javassist/CtClassType.java b/src/main/javassist/CtClassType.java
index d5989406..a714094c 100644
--- a/src/main/javassist/CtClassType.java
+++ b/src/main/javassist/CtClassType.java
@@ -257,7 +257,14 @@ class CtClassType extends CtClass {
     void freeze() { wasFrozen = true; }
 
     void checkModify() throws RuntimeException {
-        super.checkModify();
+        if (isFrozen()) {
+            String msg = getName() + " class is frozen";
+            if (wasPruned)
+                msg += " and pruned";
+
+            throw new RuntimeException(msg);
+        }
+
         wasChanged = true;
     }
 
@@ -1079,6 +1086,8 @@ class CtClassType extends CtClass {
         }
     }
 
+    /* See also checkModified()
+     */
     private void checkPruned(String method) {
         if (wasPruned)
             throw new RuntimeException(method + "(): " + getName()