Compare classes, not classnames in tests

src/test/java/edu/harvard/iq/dataverse/api/SwordIT.java

@@ -462,7 +462,7 @@ public void testCreateAndDeleteDatasetInRoot() {
  assertNull(attemptToGetFileId);
  } catch (Exception ex) {
  System.out.println("We expect an exception here because we can no longer find the file because deleted it: " + ex);
- assertTrue(ex.getClass().getName().equals(ArrayIndexOutOfBoundsException.class.getName()));
+ assertTrue(ex instanceof ArrayIndexOutOfBoundsException);
  }
 
  String newTitle = "A New Hope";

src/test/java/edu/harvard/iq/dataverse/util/bagit/data/FileDataProviderFactoryTest.java

@@ -23,21 +23,21 @@ public class FileDataProviderFactoryTest {
  public void should_return_FolderDataProvider_when_parameter_is_path() {
  FileDataProvider result = target.getFileDataProvider(Path.of(UUID.randomUUID().toString()));
 
- MatcherAssert.assertThat(result.getClass().getName(), Matchers.is(FolderDataProvider.class.getName()));
+ MatcherAssert.assertThat("should return FolderDataProvider when parameter is path", result instanceof FolderDataProvider);
  }
 
  @Test
  public void should_return_ZipFileDataProvider_when_parameter_is_file() throws IOException {
  FileDataProvider result = target.getFileDataProvider(Path.of(FIXTURE_DIRECTORY, "FileDataProviderFactoryTest.zip").toFile());
 
- MatcherAssert.assertThat(result.getClass().getName(), Matchers.is(ZipFileDataProvider.class.getName()));
+ MatcherAssert.assertThat("should return ZipFileDataProvider when parameter is file", result instanceof ZipFileDataProvider);
  }
 
  @Test
  public void should_return_DataFileDataProvider_when_parameter_is_datafiles() {
  FileDataProvider result = target.getFileDataProvider("test-name", Collections.emptyList());
 
- MatcherAssert.assertThat(result.getClass().getName(), Matchers.is(DataFileDataProvider.class.getName()));
+ MatcherAssert.assertThat("should return DataFileDataProvider when parameter is datafiles", result instanceof DataFileDataProvider);
  }
 
 }