Addressing review comments

Author: bmvkrd

ice-rest-catalog/src/main/java/com/altinity/ice/rest/catalog/internal/rest/RESTCatalogServlet.java

@@ -27,7 +27,18 @@
 import java.util.stream.Collectors;
 import org.apache.hc.core5.http.ContentType;
 import org.apache.hc.core5.http.HttpHeaders;
-import org.apache.iceberg.exceptions.*;
+import org.apache.iceberg.exceptions.AlreadyExistsException;
+import org.apache.iceberg.exceptions.CommitFailedException;
+import org.apache.iceberg.exceptions.CommitStateUnknownException;
+import org.apache.iceberg.exceptions.ForbiddenException;
+import org.apache.iceberg.exceptions.NamespaceNotEmptyException;
+import org.apache.iceberg.exceptions.NoSuchIcebergTableException;
+import org.apache.iceberg.exceptions.NoSuchNamespaceException;
+import org.apache.iceberg.exceptions.NoSuchTableException;
+import org.apache.iceberg.exceptions.NoSuchViewException;
+import org.apache.iceberg.exceptions.NotAuthorizedException;
+import org.apache.iceberg.exceptions.UnprocessableEntityException;
+import org.apache.iceberg.exceptions.ValidationException;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.io.CharStreams;
 import org.apache.iceberg.rest.HTTPRequest;
@@ -53,7 +64,6 @@ public class RESTCatalogServlet extends HttpServlet {
           .put(NoSuchTableException.class, 404)
           .put(NoSuchViewException.class, 404)
           .put(NoSuchIcebergTableException.class, 404)
-          .put(NotFoundException.class, 404)
           .put(UnsupportedOperationException.class, 406)
           .put(AlreadyExistsException.class, 409)
           .put(CommitFailedException.class, 409)

ice/src/main/java/com/altinity/ice/cli/internal/cmd/Describe.java

@@ -23,9 +23,13 @@
 import java.util.Map;
 import java.util.Set;
 import javax.annotation.Nullable;
-import org.apache.iceberg.*;
+import org.apache.iceberg.DataFile;
+import org.apache.iceberg.FileScanTask;
+import org.apache.iceberg.Snapshot;
+import org.apache.iceberg.TableScan;
 import org.apache.iceberg.catalog.Namespace;
 import org.apache.iceberg.catalog.TableIdentifier;
+import org.apache.iceberg.exceptions.ServiceFailureException;
 import org.apache.iceberg.io.CloseableIterable;
 import org.apache.iceberg.rest.RESTCatalog;
 import org.apache.iceberg.types.Conversions;
@@ -77,8 +81,7 @@ public static void run(RESTCatalog catalog, String target, boolean json, Option.
         try {
           tableData = gatherTableData(catalog, tableId, optionsSet);
           tableMetadata = new Table.Metadata(tableId.toString());
-        } catch (Exception e) {
-          e.printStackTrace(System.err);
+        } catch (ServiceFailureException e) {
           tableMetadata = new Table.Metadata(tableId.toString(), e.getMessage());
         }