fix #2560 remove sendError method

src/main/java/org/codelibs/fess/api/es/EsApiManager.java

@@ -102,8 +102,8 @@ public class EsApiManager extends BaseApiManager {
                 throw new WebApiException(HttpServletResponse.SC_FORBIDDEN, "Invalid session.");
             });
         } catch (final WebApiException e) {
-            logger.debug("Web API access error. ", e);
-            e.sendError(response);
+            logger.warn("Web API access error.", e);
+            response.sendError(e.getStatusCode(), "Web API access error.");
         }
     }
 

src/main/java/org/codelibs/fess/exception/WebApiException.java

@@ -15,10 +15,6 @@
  */
 package org.codelibs.fess.exception;
 
-import java.io.IOException;
-
-import javax.servlet.http.HttpServletResponse;
-
 public class WebApiException extends FessSystemException {
 
     private static final long serialVersionUID = 1L;
@@ -42,12 +38,4 @@ public class WebApiException extends FessSystemException {
     public WebApiException(final int statusCode, final Exception e) {
         this(statusCode, e.getMessage(), e);
     }
-
-    public void sendError(final HttpServletResponse response) {
-        try {
-            response.sendError(statusCode, getMessage());
-        } catch (final IOException e) {
-            throw new FessSystemException("SC:" + statusCode + ": " + getMessage(), e);
-        }
-    }
 }