Compilation error in Java PreCommit test suite: cannot find symbol ImmutableMap

16:23:09 > Task :sdks:java:extensions:sql:compileTestJava
16:23:09 /home/jenkins/jenkins-slave/workspace/beam_PreCommit_Java_Phrase@2/src/sdks/java/extensions/sql/src/test/java/org/apache/beam/sdk/extensions/sql/impl/rule/JoinReorderingTest.java:35: error: package org.apache.beam.vendor.guava.v20_0.com.google.common.collect does not exist
16:23:09 import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.ImmutableList;
16:23:09                                                                    ^
16:23:09 /home/jenkins/jenkins-slave/workspace/beam_PreCommit_Java_Phrase@2/src/sdks/java/extensions/sql/src/test/java/org/apache/beam/sdk/extensions/sql/impl/rule/JoinReorderingTest.java:36: error: package org.apache.beam.vendor.guava.v20_0.com.google.common.collect does not exist
16:23:09 import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.ImmutableMap;
16:23:09                                                                    ^
16:23:09 /home/jenkins/jenkins-slave/workspace/beam_PreCommit_Java_Phrase@2/src/sdks/java/extensions/sql/src/test/java/org/apache/beam/sdk/extensions/sql/impl/rule/JoinReorderingTest.java:367: error: cannot find symbol
16:23:09   private final ImmutableMap<String, Table> tables;