Hi Team,   I'm upgrading spark 2.1.1 to 2.2.1 and we had hadoop of 2.2.0. After changing spark 2.1.1 , I had to change hadoop version 2.7.2. Then it started throwing the following execption.   java.lang.IllegalAccessError: tried to access method com.google.common.base.Stopwatch.<init>()V from class org.apache.hadoop.mapreduce.lib.input.FileInputFormat   In our pom.xml we already have a version of guava.   27.0.1-jre  So I have added guava to exclusion list with no luck. I still get the same issue while running Junit (com.intellij.rt.junit.JUnitStarter.main)   <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-common</artifactId> <version>${hadoop.version}</version> <exclusions> <exclusion> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> </exclusion>      Any help would be very much appreciated ... View more