1 files changed, 1 insertions, 1 deletions
diff --git a/luni/src/main/java/java/util/zip/InflaterOutputStream.java b/luni/src/main/java/java/util/zip/InflaterOutputStream.java
index 9a699a8..ca8a950 100644
--- a/luni/src/main/java/java/util/zip/InflaterOutputStream.java
+++ b/luni/src/main/java/java/util/zip/InflaterOutputStream.java
@@ -76,7 +76,7 @@ public class InflaterOutputStream extends FilterOutputStream {
             throw new NullPointerException("inf == null");
         }
         if (bufferSize <= 0) {
-            throw new IllegalArgumentException();
+            throw new IllegalArgumentException("bufferSize <= 0: " + bufferSize);
         }
         this.inf = inf;
         this.buf = new byte[bufferSize];