rocketmq-spring-boot/src/main/java/org/apache/rocketmq/spring/support/RocketMQMessageConverter.java [36:52]:
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public class RocketMQMessageConverter {

    private static final boolean JACKSON_PRESENT;
    private static final boolean FASTJSON_PRESENT;

    static {
        ClassLoader classLoader = RocketMQMessageConverter.class.getClassLoader();
        JACKSON_PRESENT =
            ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", classLoader) &&
                ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", classLoader);
        FASTJSON_PRESENT = ClassUtils.isPresent("com.alibaba.fastjson.JSON", classLoader) &&
            ClassUtils.isPresent("com.alibaba.fastjson.support.config.FastJsonConfig", classLoader);
    }

    private final CompositeMessageConverter messageConverter;

    public RocketMQMessageConverter() {
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rocketmq-v5-client-spring-boot/src/main/java/org/apache/rocketmq/client/support/RocketMQMessageConverter.java [36:51]:
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public class RocketMQMessageConverter {
    private static final boolean JACKSON_PRESENT;
    private static final boolean FASTJSON_PRESENT;

    static {
        ClassLoader classLoader = RocketMQMessageConverter.class.getClassLoader();
        JACKSON_PRESENT =
                ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", classLoader) &&
                        ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", classLoader);
        FASTJSON_PRESENT = ClassUtils.isPresent("com.alibaba.fastjson.JSON", classLoader) &&
                ClassUtils.isPresent("com.alibaba.fastjson.support.config.FastJsonConfig", classLoader);
    }

    private final CompositeMessageConverter messageConverter;

    public RocketMQMessageConverter() {
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