How Static method mock in junit

add dependency

  <dependency>
   <groupId>org.mockito</groupId>
   <artifactId>mockito-inline</artifactId>
   <scope>test</scope>
  </dependency>

 @Test
 void given_request_when_approvalGroupUpload_then_exception_() throws Exception {
  InputStream mockInputStream = new ByteArrayInputStream("sample data".getBytes());

  Workbook mockWorkbook = mock(Workbook.class);
  when(mockFile.isEmpty()).thenReturn(false);
  when(mockFile.getInputStream()).thenReturn(mockInputStream);
  Workbook workbook = Mockito.mock(Workbook.class);
  MockedStatic<WorkbookFactory> classMock = mockStatic(WorkbookFactory.class);
  classMock.when(() -> WorkbookFactory.create(mockInputStream)).thenReturn(mockWorkbook);

  int[] response = service.approvalGroupUpload(mockFile);
  assertEquals(false, response);
 }