diff --git a/src/Framework/MockObject/Generator.php b/src/Framework/MockObject/Generator.php
index ec9aae591b0..f3442a70a44 100644
--- a/src/Framework/MockObject/Generator.php
+++ b/src/Framework/MockObject/Generator.php
@@ -747,23 +747,49 @@ private function generateMock($type, $explicitMethods, $mockClassName, $callOrig
 
             // @see https://github.com/sebastianbergmann/phpunit/issues/2995
             if ($isInterface && $class->implementsInterface(\Throwable::class)) {
+                $actualClassName        = \Exception::class;
                 $additionalInterfaces[] = $class->getName();
-                $interfaceOwnMethods    = [];
                 $isInterface            = false;
 
-                foreach ($this->getInterfaceOwnMethods($mockClassName['fullClassName']) as $method) {
-                    $interfaceOwnMethods[] = MockMethod::fromReflection($method, $callOriginalMethods, $cloneArguments);
+                try {
+                    $class = new \ReflectionClass($actualClassName);
+                } catch (\ReflectionException $e) {
+                    throw new RuntimeException(
+                        $e->getMessage(),
+                        (int) $e->getCode(),
+                        $e
+                    );
                 }
 
-                $mockMethods->addMethods(...$interfaceOwnMethods);
+                foreach ($this->getInterfaceOwnMethods($mockClassName['fullClassName']) as $method) {
+                    $methodName = $method->getName();
+
+                    if ($class->hasMethod($methodName)) {
+                        try {
+                            $classMethod = $class->getMethod($methodName);
+                        } catch (\ReflectionException $e) {
+                            throw new RuntimeException(
+                                $e->getMessage(),
+                                (int) $e->getCode(),
+                                $e
+                            );
+                        }
+
+                        if (!$this->canMockMethod($classMethod)) {
+                            continue;
+                        }
+                    }
+
+                    $mockMethods->addMethods(
+                        MockMethod::fromReflection($method, $callOriginalMethods, $cloneArguments)
+                    );
+                }
 
                 $mockClassName = $this->generateClassName(
-                    \Exception::class,
+                    $actualClassName,
                     '',
                     'Mock_'
                 );
-
-                $class = new ReflectionClass($mockClassName['fullClassName']);
             }
 
             // https://github.com/sebastianbergmann/phpunit-mock-objects/issues/103
diff --git a/tests/unit/Framework/MockObject/GeneratorTest.php b/tests/unit/Framework/MockObject/GeneratorTest.php
index bc39b8d10aa..51d1ebe42d4 100644
--- a/tests/unit/Framework/MockObject/GeneratorTest.php
+++ b/tests/unit/Framework/MockObject/GeneratorTest.php
@@ -202,7 +202,7 @@ public function testCanInvokeMethodsOfNonExistentClass(): void
         $this->assertNull($mock->someMethod());
     }
 
-    public function testMockingOfThrowable(): void
+    public function testMockingOfExceptionWithThrowable(): void
     {
         $stub = $this->generator->getMock(ExceptionWithThrowable::class);
 
@@ -211,6 +211,15 @@ public function testMockingOfThrowable(): void
         $this->assertInstanceOf(MockObject::class, $stub);
     }
 
+    public function testMockingOfThrowable(): void
+    {
+        $stub = $this->generator->getMock(Throwable::class);
+
+        $this->assertInstanceOf(Throwable::class, $stub);
+        $this->assertInstanceOf(Exception::class, $stub);
+        $this->assertInstanceOf(MockObject::class, $stub);
+    }
+
     public function testVariadicArgumentsArePassedToOriginalMethod()
     {
         /** @var ClassWithVariadicArgumentMethod|MockObject $mock */