终端错误提示：
Saving to outputFile=/usr/spark/spark-2.0.2/streaming/target/scalastyle-output.xml Processed 195 file(s) Found 101 errors
打开scalastyle-output.xml文件后，发现错误全是由scalastyle引起的，类似：
<file name="/usr/spark/spark-2.0.2/streaming/src/main/scala/org/apache/spark/streaming/util/._FileBasedWriteAheadLogReader.scala"><error severity="error" message="Could not read file, caught MalformedInputException"/></file>
对于这种问题的解决，是打开pom.xml，找到scalastyle标签，将配置标签下的true都改为false
<plugin><groupId>org.scalastyle</groupId><artifactId>scalastyle-maven-plugin</artifactId><version>0.8.0</version><configuration><verbose>false</verbose><failOnViolation>true</failOnViolation><includeTestSourceDirectory>false</includeTestSourceDirectory><failOnWarning>false</failOnWarning><sourceDirectory>${basedir}/src/main/scala</sourceDirectory><testSourceDirectory>${basedir}/src/test/scala</testSourceDirectory><configLocation>scalastyle-config.xml</configLocation><outputFile>${basedir}/target/scalastyle-output.xml</outputFile><inputEncoding>${project.build.sourceEncoding}</inputEncoding><outputEncoding>${project.reporting.outputEncoding}</outputEncoding></configuration>