Added code to use public Mockito API introduced with

mockito/mockito#3129

spock-core/src/main/java/org/spockframework/mock/runtime/mockito/MockitoInlineMockMakerImpl.java

@@ -27,6 +27,7 @@
 import org.mockito.invocation.MockHandler;
 import org.mockito.mock.MockCreationSettings;
 import org.mockito.plugins.MockMaker;
+import org.mockito.plugins.MockitoPlugins;
 import org.spockframework.mock.CannotCreateMockException;
 import org.spockframework.mock.IMockObject;
 import org.spockframework.mock.ISpockMockObject;
@@ -57,18 +58,31 @@ class MockitoInlineMockMakerImpl {
     spockMockMethod = ReflectionUtil.getMethodByName(ISpockMockObject.class, "$spock_get");
   }
 
+  /**
+   * Resolves the inline mock maker of Mockito, via different ways, depending on the Mockito version.
+   *
+   * @return The inline mock maker of Mockito
+   */
   private MockMaker resolveInlineMockMaker() {
+    MockitoFramework framework = Mockito.framework();
+    MockitoPlugins plugins = framework.getPlugins();
     try {
-      //First: Try to retrieve the internal inline mockMaker used by Mockito, to share the same static mocking state.
-      MockMaker mockMaker = (MockMaker) InvokerHelper.invokeStaticMethod(MockUtil.class, "getMockMaker", INLINE);
+      //First: Try to retrieve the inline mockMaker used by Mockito >= 5.6.0 public API, to share the same mocking state.
+      MockMaker mockMaker = (MockMaker) InvokerHelper.invokeMethod(plugins, "getMockMaker", INLINE);
       return requireNonNull(mockMaker);
 
-    } catch (Throwable ex) {
-      //Fallback: Use our own InlineMockMaker instance from the Mockito public plugin API, but this will degrade the interoperability with Mockito static mocks.
-      //The own InlineMockMaker created here, does not share its state with the Mockito mock maker.
-      //It will work for all features, but if a class is mocked with both mock makers, it will yield strange behavior.
-      MockitoFramework framework = Mockito.framework();
-      return framework.getPlugins().getInlineMockMaker();
+    } catch (Exception ignored) {
+      try {
+        //Second: Try to retrieve the inline mockMaker used by Mockito < 5.6.0 with private method, to share the same mocking state.
+        MockMaker mockMaker = (MockMaker) InvokerHelper.invokeStaticMethod(MockUtil.class, "getMockMaker", INLINE);
+        return requireNonNull(mockMaker);
+
+      } catch (Exception ignored2) {
+        //Fallback: Use our own InlineMockMaker instance from the Mockito public plugin API, but this will degrade the interoperability with Mockito static mocks.
+        //The own InlineMockMaker created here, does not share its state with the Mockito mock maker.
+        //It will work for all features, but if a class is mocked with both mock makers, it will yield strange behavior.
+        return plugins.getInlineMockMaker();
+      }
     }
   }