diff --git a/src/main/java/com/samskivert/util/LogBuilder.java b/src/main/java/com/samskivert/util/LogBuilder.java
index 78569a38..19c6d60a 100644
--- a/src/main/java/com/samskivert/util/LogBuilder.java
+++ b/src/main/java/com/samskivert/util/LogBuilder.java
@@ -20,6 +20,8 @@
 
 package com.samskivert.util;
 
+import java.util.Arrays;
+
 /**
  * Formats a message and an array of alternating key value pairs like so:
  *
diff --git a/src/main/java/com/samskivert/util/StringUtil.java b/src/main/java/com/samskivert/util/StringUtil.java
index 88188694..064bd97a 100644
--- a/src/main/java/com/samskivert/util/StringUtil.java
+++ b/src/main/java/com/samskivert/util/StringUtil.java
@@ -39,6 +39,7 @@ import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.Enumeration;
 import java.util.Iterator;
 import java.util.Locale;