feat: Add list support for FormatHelper

Resolves #85 (closed)

core/src/main/java/org/eclipsefoundation/core/helper/LoggingHelper.java

@@ -11,6 +11,10 @@
  */
 package org.eclipsefoundation.core.helper;
 
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
 /**
  * Helpers for use in formatting log messages.
  * 
@@ -19,8 +23,8 @@ package org.eclipsefoundation.core.helper;
 public final class LoggingHelper {
 
     /**
-     * Formats the message part to remove newline characters. This is meant to be used for user-defined fields to prevent
-     * logging injections.
+     * Formats the message part to remove newline characters. This is meant to be used for user-defined fields to prevent logging
+     * injections.
      * 
      * @param msg the message part to format
      * @return the sanitized log part.
@@ -32,6 +36,17 @@ public final class LoggingHelper {
         return msg.replaceAll("[\\n\\r]", "__");
     }
 
+    /**
+     * Formats the message part to remove newline characters from each item in the list. This is meant to be used for user-defined fields to
+     * prevent logging injections.
+     * 
+     * @param msg the message part to format
+     * @return the sanitized log part.
+     */
+    public static List<String> format(List<String> msg) {
+        return msg == null ? Collections.emptyList() : msg.stream().map(LoggingHelper::format).collect(Collectors.toList());
+    }
+
     private LoggingHelper() {
     }
 }