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src/main/java/inf112/fiasko/roborally/utility/BoardLoaderUtil.java

@@ -27,12 +27,7 @@ public final class BoardLoaderUtil {
      * @throws IOException If the board file cannot be loaded
      */
     public static Board loadBoard(String boardFile, List<Robot> robotList) throws IOException {
-        ClassLoader classloader = Thread.currentThread().getContextClassLoader();
+        InputStream fileStream = ResourceUtil.getResourceAsInputStream(boardFile);
-        InputStream fileStream = classloader.getResourceAsStream(boardFile);
-        if (fileStream == null) {
-            throw new IllegalArgumentException("Board file could not be loaded.");
-        }
-
         BufferedReader reader = new BufferedReader(new InputStreamReader(fileStream));
         String infoLine = reader.readLine();
         String[] infoData = infoLine.split(" ");

src/main/java/inf112/fiasko/roborally/utility/ResourceUtil.java

@@ -0,0 +1,21 @@
+package inf112.fiasko.roborally.utility;
+
+import java.io.InputStream;
+
+public class ResourceUtil {
+    private ResourceUtil() {}
+
+    /**
+     * Gets an input stream for a given resource
+     * @param resourcePath The relative path from the resources folder to the resource
+     * @return An input stream
+     */
+    public static InputStream getResourceAsInputStream(String resourcePath) {
+        ClassLoader classloader = Thread.currentThread().getContextClassLoader();
+        InputStream resourceStream = classloader.getResourceAsStream(resourcePath);
+        if (resourceStream == null) {
+            throw new IllegalArgumentException("Unable to load resource.");
+        }
+        return resourceStream;
+    }
+}