```java
// Create multiple crawler instances
Crawler crawler1 = container.getComponent("crawler");
crawler1.setSessionId("session1");
crawler1.addUrl("https://site1.com");

Crawler crawler2 = container.getComponent("crawler");  
crawler2.setSessionId("session2");
crawler2.addUrl("https://site2.com");

// Execute concurrently
crawler1.setBackground(true);
crawler2.setBackground(true);

            file.delete();
            file.mkdirs();
            file.deleteOnExit();
            fileTransformer.setPath(file.getAbsolutePath());
            crawler.addUrl(url);
            crawler.crawlerContext.setMaxAccessCount(maxCount);
            crawler.crawlerContext.setNumOfThread(numOfThread);
            crawler.urlFilter.addInclude(url + ".*");

            file.delete();
            file.mkdirs();
            file.deleteOnExit();
            fileTransformer.setPath(file.getAbsolutePath());
            crawler.addUrl(url);
            crawler.getCrawlerContext().setMaxAccessCount(maxCount);
            crawler.getCrawlerContext().setNumOfThread(numOfThread);
            crawler.urlFilter.addInclude(url + ".*");

MOVL R9, DX MOVL R10, CX RORL $0x16, DX ANDL R9, CX XORL CX, BX XORL DX, DI ADDL DI, BX MOVL BX, R8 ADDL AX, R12 ADDL AX, R8 MOVL 56(BP), AX MOVL AX, CX RORL $0x11, AX MOVL CX, DX RORL $0x13, CX SHRL $0x0a, DX MOVL 4(BP), BX XORL CX, AX MOVL BX, CX XORL DX, AX RORL $0x07, BX MOVL CX, DX SHRL $0x03, DX RORL $0x12, CX ADDL 36(BP), AX XORL CX, BX XORL DX, BX ADDL (BP), BX ADDL BX, AX MOVL AX, 64(BP) ADDL AX, R15 MOVL R12, AX ADDL $0xe49b69c1, R15 MOVL R12, CX RORL $0x06, AX MOVL R12, DX RORL $0x0b, CX...

 * the maximum depth of crawling, and URL filters.
 *
 * <p>Example usage:
 * <pre>
 *   Crawler crawler = new Crawler();
 *   crawler.addUrl("http://example.com/");
 *   crawler.execute();
 *   crawler.close();
 * </pre>
 */
public class Crawler implements Runnable, AutoCloseable {

     * @return true if the URL was successfully added to favorites, false if the user was not found
     */
    public boolean addUrl(final String userCode, final BiConsumer<UserInfo, FavoriteLog> favoriteLogLambda) {
        return userInfoBhv.selectByPK(userCode).map(userInfo -> {
            final FavoriteLog favoriteLog = new FavoriteLog();

	// These tests check that property for backwards-compatibility.
	MOVL 2147483648(AX), AX  // 8b8000000080
	MOVL -2147483648(AX), AX // 8b8000000080
	ADDL 2147483648(AX), AX  // 038000000080
	ADDL -2147483648(AX), AX // 038000000080
	// Make sure MOV CR/DR continues to work after changing its movtabs.
	MOVL CR0, AX // 0f20c0
	MOVL CR0, DX // 0f20c2
	MOVL CR4, DI // 0f20e7
	MOVL AX, CR0 // 0f22c0

                if (!urlValue.startsWith("#") && protocolHelper.isValidWebProtocol(urlValue)) {
                    final String u = duplicateHostHelper.convert(urlValue);
                    crawler.addUrl(u);
                    if (logger.isInfoEnabled()) {
                        logger.info("Target URL: {}", u);
                    }
                }
            }));

            // set included urls

	ADDQ 3395469782(AX), AX         // ERROR "offset too large"
	ADDL 3395469782(AX), AX         // ERROR "offset too large"
	ADDW 3395469782(AX), AX         // ERROR "offset too large"
	LEAQ 433954697820(AX), AX       // ERROR "offset too large"
	ADDQ 433954697820(AX), AX       // ERROR "offset too large"
	ADDL 433954697820(AX), AX       // ERROR "offset too large"

	ADDL DX, (BX)                           // 0113
	ADDL R11, (BX)                          // 44011b
	ADDL DX, (R11)                          // 410113
	ADDL R11, (R11)                         // 45011b
	ADDL DX, DX                             // 01d2 or 03d2
	ADDL R11, DX                            // 4401da or 4103d3
	ADDL DX, R11                            // 4101d3 or 4403da