errorOccurred.set(true);
                } finally {
                    latch.countDown();
                }
            }).start();
        }

        latch.await(10, TimeUnit.SECONDS);
        assertFalse("No unexpected errors should occur during concurrent access", errorOccurred.get());
    }

    /**
     * Test that default groups and roles are preserved during lazy loading.

                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);
    }