diff --git a/icu4j/main/classes/core/src/com/ibm/icu/impl/UCaseProps.java b/icu4j/main/classes/core/src/com/ibm/icu/impl/UCaseProps.java
index ca6b1d740f..085273e4a2 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/impl/UCaseProps.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/impl/UCaseProps.java
@@ -988,7 +988,7 @@ public final class UCaseProps {
                     excOffset=(int)(value>>32)+1;
 
                     /* set the output pointer to the lowercase mapping */
-                    out.append(new String(exceptions, excOffset, full));
+                    out.append(exceptions, excOffset, full);
 
                     /* return the string length */
                     return full;
@@ -1078,7 +1078,7 @@ public final class UCaseProps {
 
                 if(full!=0) {
                     /* set the output pointer to the result string */
-                    out.append(new String(exceptions, excOffset, full));
+                    out.append(exceptions, excOffset, full);
 
                     /* return the string length */
                     return full;
@@ -1271,7 +1271,7 @@ public final class UCaseProps {
 
                 if(full!=0) {
                     /* set the output pointer to the result string */
-                    out.append(new String(exceptions, excOffset, full));
+                    out.append(exceptions, excOffset, full);
 
                     /* return the string length */
                     return full;