Quality fixes

Author: costas80

xmlvalidator-email/src/main/java/eu/europa/ec/itb/xml/email/MailHandler.java

@@ -189,11 +189,15 @@ public void receiveEmail() {
                                 } catch (ValidatorException e) {
                                     // Send error response to sender.
                                     messageAdditionalText.append("Failed to process message: %s%n".formatted(e.getMessageForDisplay(new LocalisationHelper(Locale.ENGLISH))));
-                                    e.printStackTrace(new PrintWriter(new StringBuilderWriter(messageAdditionalText)));
+                                    try (var out = new PrintWriter(new StringBuilderWriter(messageAdditionalText))) {
+                                        e.printStackTrace(out);
+                                    }
                                 } catch (Exception e) {
                                     // Send error response to sender.
                                     messageAdditionalText.append("Failed to process message: %s%n".formatted(e.getMessage()));
-                                    e.printStackTrace(new PrintWriter(new StringBuilderWriter(messageAdditionalText)));
+                                    try (var out = new PrintWriter(new StringBuilderWriter(messageAdditionalText))) {
+                                        e.printStackTrace(out);
+                                    }
                                 } finally {
                                     logger.info("Sending email response");
                                     try {

xmlvalidator-ws/src/main/java/eu/europa/ec/itb/xml/rest/model/ContextFileInfo.java

@@ -63,10 +63,10 @@ public void setEmbeddingMethod(String embeddingMethod) {
      * @return The rule set information.
      */
     public FileContent toFileContent() {
-        FileContent content = new FileContent();
-        content.setContent(getContent());
-        content.setEmbeddingMethod(FileContent.embeddingMethodFromString(getEmbeddingMethod()));
-        return content;
+        FileContent fileContent = new FileContent();
+        fileContent.setContent(getContent());
+        fileContent.setEmbeddingMethod(FileContent.embeddingMethodFromString(getEmbeddingMethod()));
+        return fileContent;
     }
 
 }