diff --git a/activemq-unit-tests/pom.xml b/activemq-unit-tests/pom.xml
index 8e690a92ed..28ec67c253 100644
--- a/activemq-unit-tests/pom.xml
+++ b/activemq-unit-tests/pom.xml
@@ -302,27 +302,7 @@
     </dependency>
     <dependency>
       <groupId>org.mockito</groupId>
-      <artifactId>mockito-core</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.powermock</groupId>
-      <artifactId>powermock-core</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.powermock</groupId>
-      <artifactId>powermock-module-junit4</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.powermock</groupId>
-      <artifactId>powermock-api-mockito</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.powermock</groupId>
-      <artifactId>powermock-api-mockito-common</artifactId>
+      <artifactId>mockito-inline</artifactId>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/activemq-unit-tests/src/test/java/org/apache/activemq/broker/BrokerServiceTest.java b/activemq-unit-tests/src/test/java/org/apache/activemq/broker/BrokerServiceTest.java
index 810a6ea9b3..bbf1c9f84a 100644
--- a/activemq-unit-tests/src/test/java/org/apache/activemq/broker/BrokerServiceTest.java
+++ b/activemq-unit-tests/src/test/java/org/apache/activemq/broker/BrokerServiceTest.java
@@ -22,22 +22,19 @@ import org.apache.activemq.network.NetworkConnector;
 import org.apache.activemq.store.PersistenceAdapter;
 import org.apache.activemq.util.LargeFile;
 import org.apache.activemq.util.StoreUtil;
-import org.junit.runner.RunWith;
-import static org.powermock.api.mockito.PowerMockito.mockStatic;
-import static org.powermock.api.mockito.PowerMockito.verifyStatic;
-import static org.powermock.api.mockito.PowerMockito.when;
-import org.powermock.core.classloader.annotations.PrepareForTest;
-import org.powermock.modules.junit4.PowerMockRunner;
-
+import org.junit.Test;
+import org.mockito.MockedStatic;
 import junit.framework.TestCase;
+import org.mockito.Mockito;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.times;
 
 /**
  * Tests for the BrokerService class
  * 
  * @author chirino
  */
-@RunWith(PowerMockRunner.class)
-@PrepareForTest(StoreUtil.class)
 public class BrokerServiceTest extends TestCase {
     public void testAddRemoveTransportsWithJMX() throws Exception {
         BrokerService service = new BrokerService();
@@ -94,6 +91,7 @@ public class BrokerServiceTest extends TestCase {
         assertEquals( 1024L * 1024 * 1024 * 100, service.getSystemUsage().getStoreUsage().getLimit() );
     }
 
+    @Test
     public void testLargeFileSystem() throws Exception {
         BrokerService service = new BrokerService();
 
@@ -105,29 +103,30 @@ public class BrokerServiceTest extends TestCase {
         service.setPersistenceAdapter(persistenceAdapter);
         service.setUseJmx(false);
 
-        mockStatic(StoreUtil.class);
+        try(MockedStatic<StoreUtil> mocked = Mockito.mockStatic(StoreUtil.class)) {
+            // Return a simulated handle to a very large file system that will return a negative totalSpace.
+            mocked.when(() -> StoreUtil.findParentDirectory(dataDirectory)).thenReturn(new LargeFile(dataDirectory.getParentFile(), "KahaDB"));
+            mocked.when(() -> StoreUtil.findParentDirectory(tmpDataDirectory)).thenReturn(tmpDataDirectory.getParentFile());
 
-        // Return a simulated handle to a very large file system that will return a negative totalSpace.
-        when(StoreUtil.findParentDirectory(dataDirectory)).thenReturn(new LargeFile(dataDirectory.getParentFile(), "KahaDB"));
-        when(StoreUtil.findParentDirectory(tmpDataDirectory)).thenReturn(tmpDataDirectory.getParentFile());
+            try {
+                service.start();
+                fail("Expect error on negative totalspace");
+            } catch (Exception expected) {
+                // verify message
+                assertTrue(expected.getLocalizedMessage().contains("negative"));
+            }
+            finally {
+                service.stop();
+            }
 
-        try {
-            service.start();
-            fail("Expect error on negative totalspace");
-        } catch (Exception expected) {
-            // verify message
-            assertTrue(expected.getLocalizedMessage().contains("negative"));
-        }
-        finally {
+            // configure a 2x value for the fs limit so it can start
+            service.getSystemUsage().getStoreUsage().setTotal( service.getSystemUsage().getStoreUsage().getLimit() * 2);
+
+            service.start(true);
             service.stop();
+
+            mocked.verify(() -> StoreUtil.findParentDirectory(any()), times(3));
         }
 
-        // configure a 2x value for the fs limit so it can start
-        service.getSystemUsage().getStoreUsage().setTotal( service.getSystemUsage().getStoreUsage().getLimit() * 2);
-
-        service.start(true);
-        service.stop();
-
-        verifyStatic();
     }
 }
diff --git a/pom.xml b/pom.xml
index b8a3736e2d..268aebdf60 100644
--- a/pom.xml
+++ b/pom.xml
@@ -85,7 +85,6 @@
     <log4j-version>1.2.17</log4j-version>
     <mockito-version>3.8.0</mockito-version>
     <owasp-dependency-check-version>5.2.4</owasp-dependency-check-version>
-    <powermock-version>1.7.4</powermock-version>
     <mqtt-client-version>1.16</mqtt-client-version>
     <org-apache-derby-version>10.14.2.0</org-apache-derby-version>
     <osgi-version>6.0.0</osgi-version>
@@ -943,27 +942,9 @@
         <scope>test</scope>
       </dependency>
       <dependency>
-        <groupId>org.powermock</groupId>
-        <artifactId>powermock-core</artifactId>
-        <version>${powermock-version}</version>
-        <scope>test</scope>
-      </dependency>
-      <dependency>
-        <groupId>org.powermock</groupId>
-        <artifactId>powermock-module-junit4</artifactId>
-        <version>${powermock-version}</version>
-        <scope>test</scope>
-      </dependency>
-      <dependency>
-        <groupId>org.powermock</groupId>
-        <artifactId>powermock-api-mockito</artifactId>
-        <version>${powermock-version}</version>
-        <scope>test</scope>
-      </dependency>
-      <dependency>
-        <groupId>org.powermock</groupId>
-        <artifactId>powermock-api-mockito-common</artifactId>
-        <version>${powermock-version}</version>
+        <groupId>org.mockito</groupId>
+        <artifactId>mockito-inline</artifactId>
+        <version>${mockito-version}</version>
         <scope>test</scope>
       </dependency>
       <dependency>