diff --git a/functional/MockitoTests/README.md b/functional/MockitoTests/README.md
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+# Mockito Tests
+There are two OpenJ9 user issues where a crash with Mockito is reported:
+
+    - Issue: https://github.com/eclipse-openj9/openj9/issues/18750 and 
+
+    - Issue: https://github.com/eclipse-openj9/openj9/issues/18781
+
+    - Crash with Java 21 0.42, and set testing jdk version to 17+ as required for now
+
+    - Segmentation error when using Mockito with Java 21
+
+    - More Testcases would be added later as required
+
+# This Mockito test cases will help identify the above crashes in our builds.
+Test case added: test.java.MockitoMockTest
+
+# Next test case to be added
+Test case: test.java.MockitoJunitTest(TBD)
+
+# Dependencies Required:
+    - mockito-core
+    - byte-buddy
+    - byte-buddy-agent
+    - objenesis
diff --git a/functional/MockitoTests/build.xml b/functional/MockitoTests/build.xml
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index 0000000000..6125f000fe
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+++ b/functional/MockitoTests/build.xml
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+<?xml version="1.0"?>
+<!--
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<project name="Mockito Tests" default="build" basedir=".">
+	<taskdef resource="net/sf/antcontrib/antlib.xml" />
+	<description>
+    	Mockito Tests
+	</description>
+	<import file="${TEST_ROOT}/functional/build.xml"/>
+	<property name="LIB" value="byte_buddy,byte_buddy_agent,objenesis,mockito_core" />
+	<import file="${TEST_ROOT}/TKG/scripts/getDependencies.xml"/>
+
+	<!-- set global properties for this build -->
+	<property name="DEST" value="${BUILD_ROOT}/functional/MockitoTests" />
+
+	<!--Properties for this particular build-->
+	<property name="src" location="./src" />
+	<property name="build" location="./bin" />
+	
+	<target name="init">
+		<mkdir dir="${DEST}" />
+		<mkdir dir="${build}" />
+	</target>
+	
+	<target name="compile" depends="init,getDependentLibs" description="Using java ${JDK_VERSION} to compile the source  ">
+		<echo>Ant version is ${ant.version}</echo>
+		<echo>============COMPILER SETTINGS============</echo>
+		<echo>===fork:                         yes</echo>
+		<echo>===executable:                   ${compiler.javac}</echo>
+		<echo>===debug:                        on</echo>
+		<echo>===destdir:                      ${DEST}</echo>
+		<javac srcdir="${src}" destdir="${build}" debug="true" fork="true" executable="${compiler.javac}" includeAntRuntime="false" encoding="ISO-8859-1">
+			<src path="${src}" />
+			<classpath>
+				<pathelement location="${LIB_DIR}/mockito-core.jar"/>
+			</classpath>
+		</javac>
+	</target>
+		
+	<target name="dist" depends="compile" description="generate the distribution">
+		<jar jarfile="${DEST}/MockitoTests.jar" filesonly="true">
+			<fileset dir="${build}" />
+			<fileset dir="${src}/../" includes="*.properties,*.xml" />
+		</jar>
+		<copy todir="${DEST}">
+			<fileset dir="${src}/../" includes="*.xml" />
+			<fileset dir="${src}/../" includes="*.mk" />
+		</copy>
+	</target>
+
+	<target name="clean" depends="dist" description="clean up">
+		<!-- Delete the ${build} directory trees -->
+		<delete dir="${build}" />
+	</target>
+
+	<target name="build" >
+		<antcall target="clean" inheritall="true" />
+	</target>
+</project>
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diff --git a/functional/MockitoTests/playlist.xml b/functional/MockitoTests/playlist.xml
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+++ b/functional/MockitoTests/playlist.xml
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+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+
+<playlist xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../TKG/resources/playlist.xsd">
+	<test>
+		<testCaseName>MockitoMockTest</testCaseName>
+		<disables>
+			<disable>
+				<comment>https://github.com/eclipse-openj9/openj9/issues/19331</comment>
+				<platform>.*zos.*</platform>
+			</disable>
+		</disables>
+		<command>
+			$(JAVA_COMMAND) $(JVM_OPTIONS) -cp $(Q)$(RESOURCES_DIR)$(P)$(TEST_RESROOT)$(D)MockitoTests.jar$(P)$(LIB_DIR)$(D)mockito-core.jar$(P)$(LIB_DIR)$(D)byte-buddy.jar$(P)$(LIB_DIR)$(D)byte-buddy-agent.jar$(P)$(LIB_DIR)$(D)objenesis.jar$(Q) test.java.MockitoMockTest ; \
+			$(TEST_STATUS)</command>
+		<levels>
+			<level>extended</level>
+		</levels>
+		<groups>
+			<group>functional</group>
+		</groups>
+		<versions>
+			<version>11+</version>
+		</versions>
+	</test>
+</playlist>
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diff --git a/functional/MockitoTests/src/test/java/MockitoMockTest.java b/functional/MockitoTests/src/test/java/MockitoMockTest.java
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index 0000000000..f385185479
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+++ b/functional/MockitoTests/src/test/java/MockitoMockTest.java
@@ -0,0 +1,24 @@
+/*******************************************************************************
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *******************************************************************************/
+package test.java;
+
+import java.util.ArrayList;
+import org.mockito.Mockito;
+
+public class MockitoMockTest {
+    public static void main(String[] args) {
+        System.out.println("Call Mockito.mock(ArrayList.class)");
+        Mockito.mock(ArrayList.class);
+    }
+}
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