protected int numOfThreads = 1;

        /**
         * Whether to run in cleanup mode to remove old thumbnails.
         */
        @Option(name = "-c", aliases = "--cleanup", usage = "Clean-Up mode")
        protected boolean cleanup;

        /**
         * Default constructor for command-line options.
         */
        protected Options() {
            // nothing
        }

                fail("REPOSITORY LEAKAGE DETECTED: Shared request contains repositories from both children!");
            }

        } finally {
            // Clean up
            deleteRecursively(tempDir.toFile());
        }
    }

    private void deleteRecursively(File file) {
        if (file.isDirectory()) {
            File[] children = file.listFiles();

        return handles.size();
    }

    private void periodicMaintenance() {
        if (shutdown) {
            return;
        }

        lock.writeLock().lock();
        try {
            // Clean up expired handles
            handles.entrySet().removeIf(entry -> {
                HandleInfo info = entry.getValue();
                if (info.isExpired() && !info.isReconnecting()) {

This can be very useful for setting up **resources** that you need to use for the whole app, and that are **shared** among requests, and/or that you need to **clean up** afterwards. For example, a database connection pool, or loading a shared machine learning model.

## Use Case { #use-case }

Let's start with an example **use case** and then see how to solve it with this.

			m[err.Error()]--
			m[err.Error()]--
		}
		m[err.Error()]++
	}
}()

// Cleans up tmp directory of the local disk.
func bgFormatErasureCleanupTmp(diskPath string) {
	// Need to move temporary objects left behind from previous run of minio
	// server to a unique directory under `minioMetaTmpBucket-old` to clean
	// up `minioMetaTmpBucket` for the current run.
	//
	// /disk1/.minio.sys/tmp-old/

        long currentCount = counter.incrementAndGet();

        // Clean up old windows periodically
        if (currentCount == 1) {
            cleanupOldRateLimitCounters(currentWindow);
        }

        return currentCount <= maxEventsPerWindow;
    }

    private void cleanupOldRateLimitCounters(long currentWindow) {
        // Clean up counters from previous windows to prevent memory leaks

		}

		if err := tx.Find(reflectResults.Addr().Interface()).Error; err != nil {
			return err
		}
	}

	fieldValues := make([]interface{}, len(relForeignFields))

	// clean up old values before preloading
	switch reflectValue.Kind() {
	case reflect.Struct:
		switch rel.Type {
		case schema.HasMany, schema.Many2Many:

        super.setUp();
    }

    @Override
    public void tearDown() throws Exception {
        super.tearDown();
        // close runner
        runner.close();
        // delete all files
        runner.clean();
    }

    public void test_addIncludeUrlFilter_singleTx() {
        final String sessionId = "session1";
        final String urlPattern = "http://example.com/.*";

                                    + "(start: %d ns, middle: %d ns, end: %d ns)",
                            timingRatio, TIMING_TOLERANCE, timeStart, timeMiddle, timeEnd));
        } finally {
            // Clean up resources
            baseAuth.close();
            startAuth.close();
            middleAuth.close();
            endAuth.close();
        }
    }

    /**

       "  Write-Error 'Error: Failed to validate Maven wrapper SHA-256, your Maven wrapper might be compromised.';"^
       "  Write-Error 'Investigate or delete %WRAPPER_JAR% to attempt a clean download.';"^
       "  Write-Error 'If you updated your Maven version, you need to update the specified wrapperSha256Sum property.';"^
       "  exit 1;"^
       "}"^
       "}"
    if ERRORLEVEL 1 goto error
)