diff --git a/protocol/src/main/java/com/zfoo/protocol/collection/lpmap/LpMap.java b/protocol/src/main/java/com/zfoo/protocol/collection/lpmap/LpMap.java
index 827581cb..41bceb87 100644
--- a/protocol/src/main/java/com/zfoo/protocol/collection/lpmap/LpMap.java
+++ b/protocol/src/main/java/com/zfoo/protocol/collection/lpmap/LpMap.java
@@ -18,7 +18,7 @@ import java.util.function.BiConsumer;
 
 /**
  * Fixed-type map with long keys and Object values
- * The long key must be >= 0; value may be null
+ * The long key must be ge than 0; value may be null
  *
  * @author godotg
  */
diff --git a/protocol/src/main/java/com/zfoo/protocol/util/AssertionUtils.java b/protocol/src/main/java/com/zfoo/protocol/util/AssertionUtils.java
index f931679d..085a726e 100644
--- a/protocol/src/main/java/com/zfoo/protocol/util/AssertionUtils.java
+++ b/protocol/src/main/java/com/zfoo/protocol/util/AssertionUtils.java
@@ -64,10 +64,10 @@ public abstract class AssertionUtils {
     // ----------------------------------long----------------------------------
 
     /**
-     * lt: whether arg1 < arg2
-     * le: whether arg1 <= arg2
-     * gt: whether arg1 > arg2
-     * ge: whether arg1 >= arg2
+     * lt: whether arg1 less than arg2
+     * le: whether arg1 le than arg2
+     * gt: whether arg1 great than arg2
+     * ge: whether arg1 ge than arg2
      */
     public static void ge(long x, long y) {
         if (x < y) {
diff --git a/protocol/src/main/java/com/zfoo/protocol/util/ClassUtils.java b/protocol/src/main/java/com/zfoo/protocol/util/ClassUtils.java
index eb55686b..f8b37eec 100644
--- a/protocol/src/main/java/com/zfoo/protocol/util/ClassUtils.java
+++ b/protocol/src/main/java/com/zfoo/protocol/util/ClassUtils.java
@@ -99,7 +99,7 @@ public abstract class ClassUtils {
             jarFileUrl = jarCon.getJarFileURL().toExternalForm();
             closeJarFile = !jarCon.getUseCaches();
         } else {
-            // Not a JarURLConnection -> fall back to URL file parsing
+            // Not a JarURLConnection fall back to URL file parsing
             // Assume URL format is "jar:path!/entry"; protocol is arbitrary if entry format is followed
             // Handle paths both with and without a leading "file:" prefix
             String urlFile = packageUrl.getFile();