Use try-with for resource in test HttpServer (#1521) (#1686)

Author: martins-avots

maven-resolver-test-http/src/main/java/org/eclipse/aether/internal/test/util/http/HttpServer.java

@@ -424,26 +424,14 @@ public void handle(String target, Request req, HttpServletRequest request, HttpS
                 if (HttpMethod.HEAD.is(req.getMethod())) {
                     return;
                 }
-                FileInputStream is = null;
-                try {
-                    is = new FileInputStream(file);
+                try (FileInputStream is = new FileInputStream(file)) {
                     if (offset > 0L) {
                         long skipped = is.skip(offset);
                         while (skipped < offset && is.read() >= 0) {
                             skipped++;
                         }
                     }
                     IO.copy(is, response.getOutputStream());
-                    is.close();
-                    is = null;
-                } finally {
-                    try {
-                        if (is != null) {
-                            is.close();
-                        }
-                    } catch (final IOException e) {
-                        // Suppressed due to an exception already thrown in the try block.
-                    }
                 }
             } else if (HttpMethod.PUT.is(req.getMethod())) {
                 if (!webDav) {