diff --git a/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MRUnitBase.java b/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MRUnitBase.java
index 558d66255f2..73323b9c833 100644
--- a/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MRUnitBase.java
+++ b/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MRUnitBase.java
@@ -23,6 +23,7 @@ import java.util.Locale;
 
 import org.apache.commons.io.FileUtils;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.lucene.util.Constants;
 import org.apache.solr.SolrTestCaseJ4;
 import org.apache.solr.hadoop.morphline.MorphlineMapRunner;
 import org.apache.solr.morphlines.solr.AbstractSolrMorphlineTestBase;
@@ -37,6 +38,7 @@ public abstract class MRUnitBase extends SolrTestCaseJ4 {
 
   @BeforeClass
   public static void setupClass() throws Exception {
+    assumeFalse("This test fails on Java 9 (https://issues.apache.org/jira/browse/SOLR-8876)", Constants.JRE_IS_MINIMUM_JAVA9);
     assumeFalse("This test fails on UNIX with Turkish default locale (https://issues.apache.org/jira/browse/SOLR-6387)",
         new Locale("tr").getLanguage().equals(Locale.getDefault().getLanguage()));
     solrHomeZip = SolrOutputFormat.createSolrHomeZip(new File(RESOURCES_DIR + "/solr/mrunit"));
diff --git a/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MapReduceIndexerToolArgumentParserTest.java b/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MapReduceIndexerToolArgumentParserTest.java
index 1aebcf749b1..5dfb5cc822e 100644
--- a/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MapReduceIndexerToolArgumentParserTest.java
+++ b/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MapReduceIndexerToolArgumentParserTest.java
@@ -57,6 +57,7 @@ public class MapReduceIndexerToolArgumentParserTest extends SolrTestCaseJ4 {
   
   @BeforeClass
   public static void beforeClass() {
+    assumeFalse("This test fails on Java 9 (https://issues.apache.org/jira/browse/SOLR-8876)", Constants.JRE_IS_MINIMUM_JAVA9);
     assumeFalse("Does not work on Windows, because it uses UNIX shell commands or POSIX paths", Constants.WINDOWS);
     assumeFalse("This test fails on UNIX with Turkish default locale (https://issues.apache.org/jira/browse/SOLR-6387)",
                 new Locale("tr").getLanguage().equals(Locale.getDefault().getLanguage()));
diff --git a/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MorphlineBasicMiniMRTest.java b/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MorphlineBasicMiniMRTest.java
index 147d5019c6b..8d39906fd84 100644
--- a/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MorphlineBasicMiniMRTest.java
+++ b/solr/contrib/map-reduce/src/test/org/apache/solr/hadoop/MorphlineBasicMiniMRTest.java
@@ -119,6 +119,7 @@ public class MorphlineBasicMiniMRTest extends SolrTestCaseJ4 {
     assumeFalse("HDFS tests were disabled by -Dtests.disableHdfs",
         Boolean.parseBoolean(System.getProperty("tests.disableHdfs", "false")));
     
+    assumeFalse("This test fails on Java 9 (https://issues.apache.org/jira/browse/SOLR-8876)", Constants.JRE_IS_MINIMUM_JAVA9);
     assumeFalse("FIXME: This test does not work with Windows because of native library requirements", Constants.WINDOWS);
     
     AbstractZkTestCase.SOLRHOME = solrHomeDirectory;
diff --git a/solr/contrib/morphlines-core/src/test/org/apache/solr/morphlines/solr/SolrMorphlineZkTest.java b/solr/contrib/morphlines-core/src/test/org/apache/solr/morphlines/solr/SolrMorphlineZkTest.java
index 2687d50c8bc..97c6dfb77d4 100644
--- a/solr/contrib/morphlines-core/src/test/org/apache/solr/morphlines/solr/SolrMorphlineZkTest.java
+++ b/solr/contrib/morphlines-core/src/test/org/apache/solr/morphlines/solr/SolrMorphlineZkTest.java
@@ -29,12 +29,7 @@ import org.kitesdk.morphline.api.Record;
 import org.kitesdk.morphline.base.Fields;
 import org.kitesdk.morphline.base.Notifications;
 
-import com.carrotsearch.randomizedtesting.annotations.ThreadLeakAction;
-import com.carrotsearch.randomizedtesting.annotations.ThreadLeakAction.Action;
 import com.carrotsearch.randomizedtesting.annotations.ThreadLeakFilters;
-import com.carrotsearch.randomizedtesting.annotations.ThreadLeakLingering;
-import com.carrotsearch.randomizedtesting.annotations.ThreadLeakZombies;
-import com.carrotsearch.randomizedtesting.annotations.ThreadLeakZombies.Consequence;
 
 @ThreadLeakFilters(defaultFilters = true, filters = {
     BadHdfsThreadsFilter.class // hdfs currently leaks thread(s)