Fix UUID import in test

Author: garyrussell

spring-integration-file/src/test/java/org/springframework/integration/file/remote/RemoteFileTemplateTests.java

@@ -32,8 +32,8 @@
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.UUID;
 
-import org.jgroups.util.UUID;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;