<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.10</version>
</dependency>

public Map<String, String> getMap() {
	val map = new HashMap<String, String>();
	map.put("1", "a");
	return map;
}

public Map<String, String> getMap() {
    HashMap<String, String> map = new HashMap();
    map.put("1", "a");
    return map;
}

@Data
public class Demo {
	private int id;
	private String remark;
}

public class Demo {
    private int id;
    private String remark;

    public Demo() {
    }
    public int getId() {
        return this.id;
    public String getRemark() {
        return this.remark;
    public void setId(final int id) {
        this.id = id;
    public void setRemark(final String remark) {
        this.remark = remark;
    public boolean equals(final Object o) {
        if (o == this) {
            return true;
        } else if (!(o instanceof Demo)) {
            return false;
        } else {
            Demo other = (Demo)o;
            if (!other.canEqual(this)) {
                return false;
            } else if (this.getId() != other.getId()) {
            } else {
                Object this$remark = this.getRemark();
                Object other$remark = other.getRemark();
                if (this$remark == null) {
                    if (other$remark != null) {
                        return false;
                    }
                } else if (!this$remark.equals(other$remark)) {
                    return false;
                }
                return true;
            }
        }
    protected boolean canEqual(final Object other) {
        return other instanceof Demo;
    public int hashCode() {
        int PRIME = true;
        int result = 1;
        int result = result * 59   this.getId();
        Object $remark = this.getRemark();
        result = result * 59   ($remark == null ? 43 : $remark.hashCode());
        return result;
    public String toString() {
        return "Demo(id="   this.getId()   ", remark="   this.getRemark()   ")";
}

public class GetterSetterExample {
  @Getter @Setter private int age = 10;
  @Setter(AccessLevel.PROTECTED) private String name;
  @Override public String toString() {
    return String.format("%s (age: %d)", name, age);
  }
}

public class GetterSetterExample {
  private int age = 10;
  private String name;
  
  @Override public String toString() {
    return String.format("%s (age: %d)", name, age);
  }
  public int getAge() {
    return age;
  public void setAge(int age) {
    this.age = age;
  protected void setName(String name) {
    this.name = name;
}

@Log4j
public class Demo {

}

@AllArgsConstructor
public class Demo {
	private int id;
	private String remark;
}

public class Demo {
    private int id;
    private String remark;

    public Demo(final int id, final String remark) {
        this.id = id;
        this.remark = remark;
    }
}

public class Demo {
	@NonNull
	private int id;
	private String remark;
}

public void jedisExample(String[] args) {
    try {
        @Cleanup Jedis jedis = redisService.getJedis();
    } catch (Exception ex) {
        logger.error(“Jedis異常:”,ex)
    }
}

public void jedisExample(String[] args) {
    Jedis jedis= null;
    try {
        jedis = redisService.getJedis();
    } catch (Exception e) {
        logger.error(“Jedis異常:”,ex)
    } finally {
        if (jedis != null) {
            try {
                jedis.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}

@SneakyThrows
public int getValue(){
	int a = 1;
	int b = 0;
	return a/b;
}

public int getValue() {
    try {
        int a = 1;
        int b = 0;
        return a / b;
    } catch (Throwable var3) {
        throw var3;
    }
}

public class FooExample { 
	private final Object readLock = new Object(); 
	@Synchronized 
	public static void hello() { 
	    System.out.println("world");   
	} 
	@Synchronized("readLock") 
	public void foo() { 
	  System.out.println("bar"); 
	} 
}

public class FooExample { 
  private static final Object $LOCK = new Object[0]; 
  private final Object readLock = new Object(); 

  public static void hello() { 
    synchronized($LOCK) { 
      System.out.println("world"); 
    } 
  }   
  public void foo() { 
    synchronized(readLock) { 
        System.out.println("bar");   
  } 
}

@Builder
public class Demo {
	private int id;
	private String remark;
}

public class Demo {
    private int id;
    private String remark;

    Demo(final int id, final String remark) {
        this.id = id;
        this.remark = remark;
    }
    public static Demo.DemoBuilder builder() {
        return new Demo.DemoBuilder();
    public static class DemoBuilder {
        private int id;
        private String remark;
        DemoBuilder() {
        }
        public Demo.DemoBuilder id(final int id) {
            this.id = id;
            return this;
        public Demo.DemoBuilder remark(final String remark) {
            this.remark = remark;
        public Demo build() {
            return new Demo(this.id, this.remark);
        public String toString() {
            return "Demo.DemoBuilder(id="   this.id   ", remark="   this.remark   ")";
}