Improved error message.

h2/src/tools/org/h2/build/BuildBase.java

@@ -557,7 +557,8 @@ public class BuildBase {
                     println("SHA1 checksum: " + got);
                 } else {
                     if (!got.equals(sha1Checksum)) {
-                        throw new RuntimeException("SHA1 checksum mismatch; got: " + got);
+                        throw new RuntimeException("SHA1 checksum mismatch; got: " +
+                                got + " expected: " + sha1Checksum + " for file " + f.getAbsolutePath());
                     }
                 }
                 writeFile(targetFile, data);
@@ -613,7 +614,9 @@ public class BuildBase {
             println("SHA1 checksum: " + got);
         } else {
             if (!got.equals(sha1Checksum)) {
-                throw new RuntimeException("SHA1 checksum mismatch; got: " + got);
+                throw new RuntimeException("SHA1 checksum mismatch; got: " +
+                        got + " expected: " + sha1Checksum + " for file " + target);
+
             }
         }
         writeFile(targetFile, data);