diff --git a/java/core/BUILD b/java/core/BUILD
index cf4ae7cd74..011fb1c7e1 100644
--- a/java/core/BUILD
+++ b/java/core/BUILD
@@ -281,7 +281,7 @@ junit_tests(
         "@maven//:com_google_guava_guava",
         "@maven//:com_google_truth_truth",
         "@maven//:junit_junit",
-        "@maven//:org_easymock_easymock",
+        "@maven//:org_mockito_mockito_core",
     ],
 )
 
@@ -408,6 +408,6 @@ junit_tests(
         ":test_util_lite",
         "@maven//:com_google_truth_truth",
         "@maven//:junit_junit",
-        "@maven//:org_easymock_easymock",
+        "@maven//:org_mockito_mockito_core",
     ],
 )
diff --git a/java/core/pom.xml b/java/core/pom.xml
index ce068ee684..07d88a0e61 100644
--- a/java/core/pom.xml
+++ b/java/core/pom.xml
@@ -23,8 +23,8 @@
       <scope>test</scope>
     </dependency>
     <dependency>
-      <groupId>org.easymock</groupId>
-      <artifactId>easymock</artifactId>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/java/kotlin-lite/pom.xml b/java/kotlin-lite/pom.xml
index 490fbb2bfe..0637e6fb2d 100644
--- a/java/kotlin-lite/pom.xml
+++ b/java/kotlin-lite/pom.xml
@@ -31,8 +31,8 @@
       <scope>test</scope>
     </dependency>
     <dependency>
-      <groupId>org.easymock</groupId>
-      <artifactId>easymock</artifactId>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/java/kotlin/pom.xml b/java/kotlin/pom.xml
index 0f6feb26c5..d78456bded 100644
--- a/java/kotlin/pom.xml
+++ b/java/kotlin/pom.xml
@@ -30,8 +30,8 @@
       <scope>test</scope>
     </dependency>
     <dependency>
-      <groupId>org.easymock</groupId>
-      <artifactId>easymock</artifactId>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/java/lite/pom.xml b/java/lite/pom.xml
index c19d596868..ce1d807421 100644
--- a/java/lite/pom.xml
+++ b/java/lite/pom.xml
@@ -23,8 +23,8 @@
       <scope>test</scope>
     </dependency>
     <dependency>
-      <groupId>org.easymock</groupId>
-      <artifactId>easymock</artifactId>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/java/pom.xml b/java/pom.xml
index e1025976c1..e11bfe2c5f 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -79,9 +79,9 @@
         <scope>test</scope>
       </dependency>
       <dependency>
-        <groupId>org.easymock</groupId>
-        <artifactId>easymock</artifactId>
-        <version>3.2</version>
+        <groupId>org.mockito</groupId>
+        <artifactId>mockito-core</artifactId>
+        <version>4.3.1</version>
         <scope>test</scope>
       </dependency>
       <dependency>
diff --git a/java/util/pom.xml b/java/util/pom.xml
index 27c82be64b..82b5d0a87e 100644
--- a/java/util/pom.xml
+++ b/java/util/pom.xml
@@ -52,8 +52,8 @@
       <artifactId>junit</artifactId>
     </dependency>
     <dependency>
-      <groupId>org.easymock</groupId>
-      <artifactId>easymock</artifactId>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/maven_install.json b/maven_install.json
index bce3e2b463..808e0130d8 100644
--- a/maven_install.json
+++ b/maven_install.json
@@ -1,25 +1,13 @@
 {
     "dependency_tree": {
         "__AUTOGENERATED_FILE_DO_NOT_MODIFY_THIS_FILE_MANUALLY": "THERE_IS_NO_DATA_ONLY_ZUUL",
-        "__INPUT_ARTIFACTS_HASH": 1634601905,
-        "__RESOLVED_ARTIFACTS_HASH": -143733866,
+        "__INPUT_ARTIFACTS_HASH": -1867950668,
+        "__RESOLVED_ARTIFACTS_HASH": 1254982283,
         "conflict_resolution": {
             "com.google.errorprone:error_prone_annotations:2.3.2": "com.google.errorprone:error_prone_annotations:2.5.1",
             "junit:junit:4.12": "junit:junit:4.13.2"
         },
         "dependencies": [
-            {
-                "coord": "cglib:cglib-nodep:2.2.2",
-                "dependencies": [],
-                "directDependencies": [],
-                "file": "v1/https/repo1.maven.org/maven2/cglib/cglib-nodep/2.2.2/cglib-nodep-2.2.2.jar",
-                "mirror_urls": [
-                    "https://repo1.maven.org/maven2/cglib/cglib-nodep/2.2.2/cglib-nodep-2.2.2.jar",
-                    "https://repo.maven.apache.org/maven2/cglib/cglib-nodep/2.2.2/cglib-nodep-2.2.2.jar"
-                ],
-                "sha256": "e78c7792e59554ed8a23d18a12e3a0d2f7a244217ecf89621477f63aec074f15",
-                "url": "https://repo1.maven.org/maven2/cglib/cglib-nodep/2.2.2/cglib-nodep-2.2.2.jar"
-            },
             {
                 "coord": "com.google.auto.value:auto-value-annotations:1.7.4",
                 "dependencies": [],
@@ -83,21 +71,21 @@
             {
                 "coord": "com.google.guava:guava-testlib:30.1.1-jre",
                 "dependencies": [
-                    "com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava",
-                    "com.google.j2objc:j2objc-annotations:1.3",
                     "com.google.code.findbugs:jsr305:3.0.2",
-                    "org.hamcrest:hamcrest-core:1.3",
-                    "com.google.guava:guava:30.1.1-jre",
-                    "com.google.guava:failureaccess:1.0.1",
                     "com.google.errorprone:error_prone_annotations:2.5.1",
+                    "com.google.guava:failureaccess:1.0.1",
+                    "com.google.guava:guava:30.1.1-jre",
+                    "com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava",
+                    "com.google.j2objc:j2objc-annotations:1.3",
                     "junit:junit:4.13.2",
-                    "org.checkerframework:checker-qual:3.9.1"
+                    "org.checkerframework:checker-qual:3.9.1",
+                    "org.hamcrest:hamcrest-core:1.3"
                 ],
                 "directDependencies": [
-                    "com.google.j2objc:j2objc-annotations:1.3",
                     "com.google.code.findbugs:jsr305:3.0.2",
-                    "com.google.guava:guava:30.1.1-jre",
                     "com.google.errorprone:error_prone_annotations:2.5.1",
+                    "com.google.guava:guava:30.1.1-jre",
+                    "com.google.j2objc:j2objc-annotations:1.3",
                     "junit:junit:4.13.2",
                     "org.checkerframework:checker-qual:3.9.1"
                 ],
@@ -112,19 +100,19 @@
             {
                 "coord": "com.google.guava:guava:30.1.1-jre",
                 "dependencies": [
-                    "com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava",
-                    "com.google.j2objc:j2objc-annotations:1.3",
                     "com.google.code.findbugs:jsr305:3.0.2",
-                    "com.google.guava:failureaccess:1.0.1",
                     "com.google.errorprone:error_prone_annotations:2.5.1",
+                    "com.google.guava:failureaccess:1.0.1",
+                    "com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava",
+                    "com.google.j2objc:j2objc-annotations:1.3",
                     "org.checkerframework:checker-qual:3.9.1"
                 ],
                 "directDependencies": [
-                    "com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava",
-                    "com.google.j2objc:j2objc-annotations:1.3",
                     "com.google.code.findbugs:jsr305:3.0.2",
-                    "com.google.guava:failureaccess:1.0.1",
                     "com.google.errorprone:error_prone_annotations:2.5.1",
+                    "com.google.guava:failureaccess:1.0.1",
+                    "com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava",
+                    "com.google.j2objc:j2objc-annotations:1.3",
                     "org.checkerframework:checker-qual:3.9.1"
                 ],
                 "file": "v1/https/repo1.maven.org/maven2/com/google/guava/guava/30.1.1-jre/guava-30.1.1-jre.jar",
@@ -162,20 +150,20 @@
             {
                 "coord": "com.google.truth:truth:1.1.2",
                 "dependencies": [
-                    "org.ow2.asm:asm:9.0",
                     "com.google.auto.value:auto-value-annotations:1.7.4",
-                    "com.google.guava:guava:30.1.1-jre",
                     "com.google.errorprone:error_prone_annotations:2.5.1",
+                    "com.google.guava:guava:30.1.1-jre",
                     "junit:junit:4.13.2",
-                    "org.checkerframework:checker-qual:3.9.1"
+                    "org.checkerframework:checker-qual:3.9.1",
+                    "org.ow2.asm:asm:9.0"
                 ],
                 "directDependencies": [
-                    "org.ow2.asm:asm:9.0",
                     "com.google.auto.value:auto-value-annotations:1.7.4",
-                    "com.google.guava:guava:30.1.1-jre",
                     "com.google.errorprone:error_prone_annotations:2.5.1",
+                    "com.google.guava:guava:30.1.1-jre",
                     "junit:junit:4.13.2",
-                    "org.checkerframework:checker-qual:3.9.1"
+                    "org.checkerframework:checker-qual:3.9.1",
+                    "org.ow2.asm:asm:9.0"
                 ],
                 "file": "v1/https/repo1.maven.org/maven2/com/google/truth/truth/1.1.2/truth-1.1.2.jar",
                 "mirror_urls": [
@@ -201,6 +189,30 @@
                 "sha256": "8e495b634469d64fb8acfa3495a065cbacc8a0fff55ce1e31007be4c16dc57d3",
                 "url": "https://repo1.maven.org/maven2/junit/junit/4.13.2/junit-4.13.2.jar"
             },
+            {
+                "coord": "net.bytebuddy:byte-buddy-agent:1.12.7",
+                "dependencies": [],
+                "directDependencies": [],
+                "file": "v1/https/repo1.maven.org/maven2/net/bytebuddy/byte-buddy-agent/1.12.7/byte-buddy-agent-1.12.7.jar",
+                "mirror_urls": [
+                    "https://repo1.maven.org/maven2/net/bytebuddy/byte-buddy-agent/1.12.7/byte-buddy-agent-1.12.7.jar",
+                    "https://repo.maven.apache.org/maven2/net/bytebuddy/byte-buddy-agent/1.12.7/byte-buddy-agent-1.12.7.jar"
+                ],
+                "sha256": "73d84bb6e8e8980e674d796a29063f510ceb527c6f8c912a08a13e236be05c71",
+                "url": "https://repo1.maven.org/maven2/net/bytebuddy/byte-buddy-agent/1.12.7/byte-buddy-agent-1.12.7.jar"
+            },
+            {
+                "coord": "net.bytebuddy:byte-buddy:1.12.7",
+                "dependencies": [],
+                "directDependencies": [],
+                "file": "v1/https/repo1.maven.org/maven2/net/bytebuddy/byte-buddy/1.12.7/byte-buddy-1.12.7.jar",
+                "mirror_urls": [
+                    "https://repo1.maven.org/maven2/net/bytebuddy/byte-buddy/1.12.7/byte-buddy-1.12.7.jar",
+                    "https://repo.maven.apache.org/maven2/net/bytebuddy/byte-buddy/1.12.7/byte-buddy-1.12.7.jar"
+                ],
+                "sha256": "d2e46555699e70361b5471a7e142f9c67855bba6907a285177ebd8ad973775d8",
+                "url": "https://repo1.maven.org/maven2/net/bytebuddy/byte-buddy/1.12.7/byte-buddy-1.12.7.jar"
+            },
             {
                 "coord": "org.checkerframework:checker-qual:3.9.1",
                 "dependencies": [],
@@ -213,24 +225,6 @@
                 "sha256": "ab0468b1ba35bb2ae45f61a60dc4960bd887660ab8f05113a662a7e675eae776",
                 "url": "https://repo1.maven.org/maven2/org/checkerframework/checker-qual/3.9.1/checker-qual-3.9.1.jar"
             },
-            {
-                "coord": "org.easymock:easymock:3.2",
-                "dependencies": [
-                    "cglib:cglib-nodep:2.2.2",
-                    "org.objenesis:objenesis:1.3"
-                ],
-                "directDependencies": [
-                    "cglib:cglib-nodep:2.2.2",
-                    "org.objenesis:objenesis:1.3"
-                ],
-                "file": "v1/https/repo1.maven.org/maven2/org/easymock/easymock/3.2/easymock-3.2.jar",
-                "mirror_urls": [
-                    "https://repo1.maven.org/maven2/org/easymock/easymock/3.2/easymock-3.2.jar",
-                    "https://repo.maven.apache.org/maven2/org/easymock/easymock/3.2/easymock-3.2.jar"
-                ],
-                "sha256": "b3dd1cf5019f942d8cc2afad0aa6aef4b21532446fe90a6b68d567e3389763dd",
-                "url": "https://repo1.maven.org/maven2/org/easymock/easymock/3.2/easymock-3.2.jar"
-            },
             {
                 "coord": "org.hamcrest:hamcrest-core:1.3",
                 "dependencies": [],
@@ -244,16 +238,36 @@
                 "url": "https://repo1.maven.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar"
             },
             {
-                "coord": "org.objenesis:objenesis:1.3",
+                "coord": "org.mockito:mockito-core:4.3.1",
+                "dependencies": [
+                    "net.bytebuddy:byte-buddy-agent:1.12.7",
+                    "net.bytebuddy:byte-buddy:1.12.7",
+                    "org.objenesis:objenesis:3.2"
+                ],
+                "directDependencies": [
+                    "net.bytebuddy:byte-buddy-agent:1.12.7",
+                    "net.bytebuddy:byte-buddy:1.12.7",
+                    "org.objenesis:objenesis:3.2"
+                ],
+                "file": "v1/https/repo1.maven.org/maven2/org/mockito/mockito-core/4.3.1/mockito-core-4.3.1.jar",
+                "mirror_urls": [
+                    "https://repo1.maven.org/maven2/org/mockito/mockito-core/4.3.1/mockito-core-4.3.1.jar",
+                    "https://repo.maven.apache.org/maven2/org/mockito/mockito-core/4.3.1/mockito-core-4.3.1.jar"
+                ],
+                "sha256": "148de2c6928365db29443ca12d35c930d9f481172b934fdd801d1cb1409ea83a",
+                "url": "https://repo1.maven.org/maven2/org/mockito/mockito-core/4.3.1/mockito-core-4.3.1.jar"
+            },
+            {
+                "coord": "org.objenesis:objenesis:3.2",
                 "dependencies": [],
                 "directDependencies": [],
-                "file": "v1/https/repo1.maven.org/maven2/org/objenesis/objenesis/1.3/objenesis-1.3.jar",
+                "file": "v1/https/repo1.maven.org/maven2/org/objenesis/objenesis/3.2/objenesis-3.2.jar",
                 "mirror_urls": [
-                    "https://repo1.maven.org/maven2/org/objenesis/objenesis/1.3/objenesis-1.3.jar",
-                    "https://repo.maven.apache.org/maven2/org/objenesis/objenesis/1.3/objenesis-1.3.jar"
+                    "https://repo1.maven.org/maven2/org/objenesis/objenesis/3.2/objenesis-3.2.jar",
+                    "https://repo.maven.apache.org/maven2/org/objenesis/objenesis/3.2/objenesis-3.2.jar"
                 ],
-                "sha256": "dd4ef3d3091063a4fec578cbb2bbe6c1f921c00091ba2993dcd9afd25ff9444a",
-                "url": "https://repo1.maven.org/maven2/org/objenesis/objenesis/1.3/objenesis-1.3.jar"
+                "sha256": "03d960bd5aef03c653eb000413ada15eb77cdd2b8e4448886edf5692805e35f3",
+                "url": "https://repo1.maven.org/maven2/org/objenesis/objenesis/3.2/objenesis-3.2.jar"
             },
             {
                 "coord": "org.ow2.asm:asm:9.0",
diff --git a/protobuf_deps.bzl b/protobuf_deps.bzl
index 27b8bee258..2bee1b763c 100644
--- a/protobuf_deps.bzl
+++ b/protobuf_deps.bzl
@@ -11,7 +11,7 @@ PROTOBUF_MAVEN_ARTIFACTS = [
     "com.google.guava:guava-testlib:30.1.1-jre",
     "com.google.truth:truth:1.1.2",
     "junit:junit:4.12",
-    "org.easymock:easymock:3.2",
+    "org.mockito:mockito-core:4.3.1",
 ]
 
 def protobuf_deps():