The method iterator() is ambiguous for the type KafkaStream<byte[],byte[]>

ConsumerIterator<byte[],byte[]> it =stream.iterator();
这句代码老是报错，The method iterator() is ambiguous for the type KafkaStream<byte[],byte[]>

解决方法：将maven中配置

plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
<showWarnings>true</showWarnings>
</configuration>
</plugin>