Initialisieren Ausnahme Fehlermeldung, wenn mit Mockito mit PowerMock

Ich bin mit Mockito mit PowerMock für die erste Zeit, und ich habe einen Fehler beim ausführen von den folgenden code in der folgenden Zeile:

MockitoAnnotations.initMocks(SearchTest.class);

Der Fehler ist:

java.lang.ExceptionInInitializerError
    at org.mockito.internal.exceptions.stacktrace.ConditionalStackTraceFilter.<init>(ConditionalStackTraceFilter.java:17)
    at org.mockito.exceptions.base.MockitoException.filterStackTrace(MockitoException.java:30)
    at org.mockito.exceptions.base.MockitoException.<init>(MockitoException.java:19)
    at org.mockito.exceptions.misusing.MockitoConfigurationException.<init>(MockitoConfigurationException.java:18)
    at org.mockito.internal.configuration.ClassPathLoader.loadImplementations(ClassPathLoader.java:145)
    at org.mockito.internal.configuration.ClassPathLoader.findPluginImplementation(ClassPathLoader.java:110)
    at org.mockito.internal.configuration.ClassPathLoader.findPlatformMockMaker(ClassPathLoader.java:106)
    at org.mockito.internal.configuration.ClassPathLoader.<clinit>(ClassPathLoader.java:59)
    at org.mockito.internal.configuration.GlobalConfiguration.createConfig(GlobalConfiguration.java:38)
    at org.mockito.internal.configuration.GlobalConfiguration.<init>(GlobalConfiguration.java:32)
    at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:94) 
Caused by: java.lang.NullPointerException

Den code für die test-Klasse:

    import org.apache.http.HttpEntity;
    import org.apache.http.HttpResponse;
    import org.apache.http.client.HttpClient;
    import org.apache.http.client.methods.HttpPost;
    import org.junit.Assert;
    import org.junit.BeforeClass;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.junit.runners.Parameterized.Parameters;
    import org.mockito.Matchers;
    import org.mockito.Mock;
    import org.mockito.Mockito;
    import org.mockito.MockitoAnnotations;
    import org.powermock.api.mockito.PowerMockito;
    import org.powermock.core.classloader.annotations.PrepareForTest;
    import org.powermock.modules.junit4.PowerMockRunner;

@RunWith(Parameterized.class)
@PrepareForTest(InputStreamReader.class)

public class SearchTest {   
    private String preFile;
    private String expectedPreFile;
    private String postFile;
    private String expectedpostFile;

    @Parameters
    public static Collection<Object[]> data() {
        return Arrays.asList(new Object[][] {    
        { "test1" } });
    }

    @Mock
    private HttpClient mockHttpClient;
    private HttpPost mockHttpPost;
    private HttpResponse mockHttpResponse;
    private HttpEntity mockHttpEntity; 
    private InputStream mockInputStream;
    private InputStreamReader mockInputStreamReader;
    private BufferedReader mockBufferedReader;

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks(this);
        xstream = new XStream();
    }


    public SearchTest(String folder) {
        this.preFile= folder + "/inpRows.json";
        this.expectedPreFile= folder + "/inpRowsExpected.json";
        this.postFile= folder + "/outRows.json";
        this.expectedpostFile= folder + "/outRowsExpected.json";
    }

    @Test
    /**
     * Simulates the calling of a handler    * 
     * Setup @Parameters with a list of folders containing the test files.  A test is performed for each entry
     * @throws CallbackHandlerException
     * @throws IOException
     * @throws JSONException
     * @throws SecurityException
     * @throws NoSuchFieldException
     * @throws IllegalArgumentException
     * @throws IllegalAccessException
     */
    public void testHandler() throws Exception {

    /**********Set the expected results for the mocked methods****************/
        Mockito.when(mockHttpClient.execute(mockHttpPost)).thenReturn(mockHttpResponse); 
        Mockito.when(mockHttpResponse.getEntity()).thenReturn(mockHttpEntity);              
        Mockito.when(mockHttpEntity.getContent()).thenReturn(mockInputStream);
        PowerMockito.whenNew(InputStreamReader.class).withArguments(mockInputStream).thenReturn(mockInputStreamReader);
        PowerMockito.whenNew(BufferedReader.class).withArguments(mockInputStreamReader).thenReturn(mockBufferedReader);
        PowerMockito.whenNew(JSONObject.class).withArguments(Matchers.any(String.class)).thenReturn(jsonStub);

        searchHandler.pre(); //Call the actual Pre method to be tested

    }
}

Irgendwelche Vorschläge, warum ich diese Fehlermeldung bekommen?

Dank

InformationsquelleAutor Global Dictator | 2013-12-18