Fix setting a font-color if no previous color is defined for the font

Add unit-test to verify this

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1815086 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 1 insertions, 1 deletions

diff --git a/src/java/org/apache/poi/hssf/util/HSSFColor.java b/src/java/org/apache/poi/hssf/util/HSSFColor.java
index 3c0ba6a9ce..51d4af7d6f 100644
--- a/src/java/org/apache/poi/hssf/util/HSSFColor.java
+++ b/src/java/org/apache/poi/hssf/util/HSSFColor.java
@@ -366,7 +366,7 @@ public class HSSFColor implements Color {
         // Currently the only benefit of this method is to throw an IllegalArgumentException
         // instead of a ClassCastException.
         if (color != null && !(color instanceof HSSFColor)) {
-            throw new IllegalArgumentException("Only HSSFColor objects are supported");
+            throw new IllegalArgumentException("Only HSSFColor objects are supported, but had " + color.getClass());
         }
         return (HSSFColor)color;
     }