人工制品 cm-jobs 对工件有依赖性 kloud . kloud 对工件有依赖性 jackson-databind . maven-shaded-plugin 用于 Package cm-jobs . 在执行 hadoop jar 上 cm-jobs 我们看到以下错误。

Exception in thread "main" java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.JsonNode.asText(Ljava/lang/String;)Ljava/lang/String;
    at com.flipkart.kloud.config.InstanceMetaData.getNode(InstanceMetaData.java:81)
    at com.flipkart.kloud.config.InstanceMetaData.<init>(InstanceMetaData.java:46)
    at com.flipkart.kloud.config.InstanceMetaData.<clinit>(InstanceMetaData.java:36)
    at com.flipkart.kloud.config.EndpointProvider.<init>(EndpointProvider.java:44)
    at com.flipkart.kloud.config.EndpointProvider.<clinit>(EndpointProvider.java:35)
    at com.flipkart.kloud.config.ConfigClient.getEndpoint(ConfigClient.java:170)
    at com.flipkart.kloud.config.ConfigClient.<init>(ConfigClient.java:102)
    at com.flipkart.kloud.config.ConfigClient.<init>(ConfigClient.java:91)
    at com.flipkart.ads.common.configuration.ConfigServiceClient.getAppDynamicBucketFromEnvSettings(ConfigServiceClient.java:246)
    at com.flipkart.ads.common.configuration.ConfigServiceClient.getAppDynamicBucketFromEnvSettings(ConfigServiceClient.java:237)
    at com.flipkart.ads.jobs.BaseTrigger.init(BaseTrigger.java:20)
    at com.flipkart.ads.jobs.BaseTrigger.markJobStatus(BaseTrigger.java:32)
    at com.flipkart.ads.jobs.reco.PLARecoRelevanceGenerator.run(PLARecoRelevanceGenerator.java:102)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
    at com.flipkart.ads.jobs.reco.PLARecoRelevanceGenerator.main(PLARecoRelevanceGenerator.java:54)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
    at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

根据这里的依赖树，只有一个版本的jacksonbind被使用。那么，冲突阶级来自哪里 com.fasterxml.jackson.databind.JsonNode 被选中？