diff --git a/imageio/imageio-core/license.txt b/imageio/imageio-core/license.txt
index 2d8ee79c..3d296265 100755
--- a/imageio/imageio-core/license.txt
+++ b/imageio/imageio-core/license.txt
@@ -22,4 +22,9 @@ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+---
+
+ClayRGB1998.icc color profile is public domain, downloaded from http://www.argyllcms.com/
+    "Public Domain. No Warranty, Use at own risk."
\ No newline at end of file
diff --git a/imageio/imageio-core/src/main/java/com/twelvemonkeys/imageio/color/ColorSpaces.java b/imageio/imageio-core/src/main/java/com/twelvemonkeys/imageio/color/ColorSpaces.java
index d639162d..d1975341 100644
--- a/imageio/imageio-core/src/main/java/com/twelvemonkeys/imageio/color/ColorSpaces.java
+++ b/imageio/imageio-core/src/main/java/com/twelvemonkeys/imageio/color/ColorSpaces.java
@@ -38,6 +38,7 @@ import java.awt.color.ICC_Profile;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Arrays;
+import java.util.Map;
 
 /**
  * A helper class for working with ICC color profiles and color spaces.
@@ -55,7 +56,7 @@ public final class ColorSpaces {
     /** A best-effort "generic" CMYK color space. Either read from disk or built-in. */
     public static final int CS_GENERIC_CMYK = 5001;
 
-    private static final LRUHashMap<Key, ICC_ColorSpace> cache = new LRUHashMap<Key, ICC_ColorSpace>(10);
+    private static final Map<Key, ICC_ColorSpace> cache = new LRUHashMap<Key, ICC_ColorSpace>(10);
 
     private ColorSpaces() {}