execJob.jvmOptions("-Xms" + i + "m");
            }
            latch.countDown();
        });

        t1.start();
        t2.start();

        assertTrue(latch.await(5, TimeUnit.SECONDS));
        // The exact size may vary due to concurrent modifications, just check it's not empty
        assertTrue(execJob.jvmOptions.size() > 0);
    }

    // Test pattern matching in custom properties
    @Test

labels.search_result_status=Results <b>{2}</b> - <b>{3}</b> of <b>{1}</b> for <b>{0}</b>
labels.search_result_status_over=Results <b>{2}</b> - <b>{3}</b> of over <b>{1}</b> for <b>{0}</b>
labels.search_result_time=({0} seconds)
labels.prev_page=Prev
labels.next_page=Next
labels.did_not_match=Your search - <b>{0}</b> - did not match any documents.
labels.did_not_match_suggestion=Try different keywords or check your spelling.

    public static final String LABELS_search_result_status_over = "{labels.search_result_status_over}";

    /** The key of the message: ({0} seconds) */
    public static final String LABELS_search_result_time = "{labels.search_result_time}";

    /** The key of the message: Prev */
    public static final String LABELS_prev_page = "{labels.prev_page}";