當爲Jackrabbit啓用搜索索引時出現NullPointerException

Question

我目前正在開發積極使用長耳兔的應用程序。這是我第一次使用長毛兔。我爲我的junit測試使用基於h2的配置。 Lucene搜索是在我的repository.xml禁用，唯一的問題是在日誌文件中的以下異常：

ERROR org.apache.jackrabbit.core.security.user.MembershipCache - Failed to retrieve membership references of 21232f29-7a57-35a7-8389-4a0e4a801fc3. 
javax.jcr.RepositoryException: no search manager configured for this workspace 

所有的單元測試通過。當我開始測試使用UserManager.findAuthorizables的功能時，我必須在repository.xml中啓用SearchIndex。
現在我所有的測試都失敗令人沮喪的NullPointerException異常：

java.lang.NullPointerException 
    at org.apache.jackrabbit.core.query.lucene.MultiScorer.nextDoc(MultiScorer.java:68) 
    at org.apache.lucene.search.ConjunctionScorer.<init>(ConjunctionScorer.java:42) 
    at org.apache.lucene.search.ConjunctionScorer.<init>(ConjunctionScorer.java:33) 
    at org.apache.lucene.search.BooleanScorer2$2.<init>(BooleanScorer2.java:173) 
    at org.apache.lucene.search.BooleanScorer2.countingConjunctionSumScorer(BooleanScorer2.java:173) 
    at org.apache.lucene.search.BooleanScorer2.makeCountingSumScorerSomeReq(BooleanScorer2.java:234) 
    at org.apache.lucene.search.BooleanScorer2.makeCountingSumScorer(BooleanScorer2.java:211) 
    at org.apache.lucene.search.BooleanScorer2.<init>(BooleanScorer2.java:101) 
    at org.apache.lucene.search.BooleanQuery$BooleanWeight.scorer(BooleanQuery.java:328) 
    at org.apache.jackrabbit.core.query.lucene.ChildAxisQuery$ChildAxisWeight.scorer(ChildAxisQuery.java:334) 
    at org.apache.jackrabbit.core.query.lucene.ChildAxisQuery$ChildAxisWeight.scorer(ChildAxisQuery.java:332) 
    at org.apache.jackrabbit.core.query.lucene.DescendantSelfAxisQuery$DescendantSelfAxisWeight.scorer(DescendantSelfAxisQuery.java:395) 
    at org.apache.jackrabbit.core.query.lucene.LuceneQueryHits.<init>(LuceneQueryHits.java:52) 
    at org.apache.jackrabbit.core.query.lucene.JackrabbitIndexSearcher.evaluate(JackrabbitIndexSearcher.java:107) 
    at org.apache.jackrabbit.core.query.lucene.JackrabbitIndexSearcher.execute(JackrabbitIndexSearcher.java:85) 
    at org.apache.jackrabbit.core.query.lucene.SearchIndex.executeQuery(SearchIndex.java:814) 
    at org.apache.jackrabbit.core.query.lucene.SingleColumnQueryResult.executeQuery(SingleColumnQueryResult.java:74) 
    at org.apache.jackrabbit.core.query.lucene.QueryResultImpl.getResults(QueryResultImpl.java:275) 
    at org.apache.jackrabbit.core.query.lucene.SingleColumnQueryResult.<init>(SingleColumnQueryResult.java:66) 
    at org.apache.jackrabbit.core.query.lucene.QueryImpl.execute(QueryImpl.java:134) 
    at org.apache.jackrabbit.core.query.QueryImpl$1.perform(QueryImpl.java:132) 
    at org.apache.jackrabbit.core.query.QueryImpl$1.perform(QueryImpl.java:129) 
    at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216) 
    at org.apache.jackrabbit.core.query.QueryImpl.execute(QueryImpl.java:128) 
    at org.apache.jackrabbit.core.security.user.IndexNodeResolver.findNode(IndexNodeResolver.java:73) 
    at org.apache.jackrabbit.core.security.user.UserManagerImpl.getAuthorizable(UserManagerImpl.java:465) 
    at org.apache.jackrabbit.core.security.user.UserManagerImpl.setPrincipal(UserManagerImpl.java:698) 
    at org.apache.jackrabbit.core.security.user.UserManagerImpl.createUser(UserManagerImpl.java:558) 
    at org.apache.jackrabbit.core.security.user.UserManagerImpl.createUser(UserManagerImpl.java:541) 
    at org.apache.jackrabbit.core.security.user.UserManagerImpl.createAdmin(UserManagerImpl.java:948) 
    at org.apache.jackrabbit.core.security.user.UserManagerImpl.getAuthorizable(UserManagerImpl.java:426) 
    at org.apache.jackrabbit.core.DefaultSecurityManager.createSystemUsers(DefaultSecurityManager.java:613) 
    at org.apache.jackrabbit.core.DefaultSecurityManager.init(DefaultSecurityManager.java:204) 
    at org.apache.jackrabbit.core.RepositoryImpl.initSecurityManager(RepositoryImpl.java:463) 
    at org.apache.jackrabbit.core.RepositoryImpl.<init>(RepositoryImpl.java:324) 
    at org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:582) 
    at org.apache.jackrabbit.core.TransientRepository$2.getRepository(TransientRepository.java:232) 
    at org.apache.jackrabbit.core.TransientRepository.startRepository(TransientRepository.java:280) 
    at org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:376) 
    at ru.e.e.s.s.BaseJackrabbitRelatedTests.startRepository(BaseJackrabbitRelatedTests.java:81) 
    at ru.e.e.s.s.BaseJackrabbitRelatedTests.setUp(BaseJackrabbitRelatedTests.java:64) 
    at ru.e.e.s.s.i.p.JackrabbitIdentityRepositoryTests.setUp(JackrabbitIdentityRepositoryTests.java:28) 
    ... 

這裏是我的repository.xml，它使用默認的搜索索引配置：

<?xml version="1.0"?> 
<!DOCTYPE Repository PUBLIC "-//The Apache Software Foundation//DTD Jackrabbit 2.0//EN" "http://jackrabbit.apache.org/dtd/repository-2.0.dtd"> 
<Repository> 
    <FileSystem class="org.apache.jackrabbit.core.fs.db.DbFileSystem"> 
     <param name="driver" value="org.h2.Driver"/> 
     <param name="url" value="jdbc:h2:memFS:test"/> 
    </FileSystem> 
    <DataStore class="org.apache.jackrabbit.core.data.FileDataStore"/> 
    <Security appName="Jackrabbit"> 
     <SecurityManager class="org.apache.jackrabbit.core.DefaultSecurityManager" workspaceName="security"> 
      <WorkspaceAccessManager class="org.apache.jackrabbit.core.security.simple.SimpleWorkspaceAccessManager"/> 
     </SecurityManager> 
     <AccessManager class="org.apache.jackrabbit.core.security.DefaultAccessManager" /> 
     <LoginModule class="org.apache.jackrabbit.core.security.authentication.DefaultLoginModule"> 
      <param name="adminId" value="admin"/> 
      <param name="anonimousId" value=""/> 
     </LoginModule> 
    </Security> 
    <Workspaces rootPath="${rep.home}/workspaces" defaultWorkspace="default"/> 
    <Workspace name="${wsp.name}"> 
     <FileSystem class="org.apache.jackrabbit.core.fs.db.DbFileSystem"> 
      <param name="driver" value="org.h2.Driver"/> 
      <param name="url" value="jdbc:h2:memFS:testWsp"/> 
     </FileSystem> 
     <PersistenceManager class="org.apache.jackrabbit.core.persistence.pool.H2PersistenceManager"> 
      <param name="driver" value="org.h2.Driver"/> 
      <param name="url" value="jdbc:h2:mem:itemState"/> 
     </PersistenceManager> 
     <SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex"> 
      <param name="path" value="${wsp.home}/index"/> 
      <param name="extractorPoolSize" value="2"/> 
     </SearchIndex> 
    </Workspace> 
    <Versioning rootPath="${rep.home}/version"> 
     <FileSystem class="org.apache.jackrabbit.core.fs.db.DbFileSystem"> 
      <param name="driver" value="org.h2.Driver"/> 
      <param name="url" value="jdbc:h2:memFS:test/version"/> 
     </FileSystem> 
     <PersistenceManager class="org.apache.jackrabbit.core.persistence.pool.H2PersistenceManager"> 
      <param name="driver" value="org.h2.Driver"/> 
      <param name="url" value="jdbc:h2:mem:version;db_close_delay=10"/> 
     </PersistenceManager> 
    </Versioning> 
    <SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex"> 
     <param name="path" value="${rep.home}/repository/index"/> 
     <param name="extractorPoolSize" value="2"/> 
    </SearchIndex> 
</Repository> 

庫啓動代碼：

public abstract class BaseJackrabbitRelatedTests { 
    protected static Repository testRepository; 
    protected static Credentials adminCredentials; 
    private Session keepAliveSession; 

    @BeforeClass 
    public static void setUpBeforeClass() throws Exception { 
     cleanRepository(); 
     testRepository = new TransientRepository(JACKRABBIT_CONFIGURATION_FILE, JACKRABBIT_REPOSITORY_PATH); 
     adminCredentials = new SimpleCredentials(JACKRABBIT_USERNAME, JACKRABBIT_PASSWORD.toCharArray()); 
    } 

    private static void cleanRepository() throws Exception { 
     FileUtils.deleteQuietly(new File(JACKRABBIT_REPOSITORY_PATH)); 
    } 

    @Before 
    public void setUp() throws Exception { 
     startRepository(); 
     ... 
    } 

    private void startRepository() throws Exception { 
     if (keepAliveSession == null) { 
      keepAliveSession = testRepository.login(adminCredentials, JACKRABBIT_DEFAULT_WORKSPACE); 
     } 
    } 
    ... 
} 

我已經fo在Jackrabbit 2.3.4上這個問題。我試圖用最近發佈的2.4.0 - 沒有成功。
似乎jackrabbit無法創建LoginModule配置部分中列出的用戶。但爲什麼？我錯過了什麼？

Answer 1

我的錯誤。
我檢查了我的ivy資源庫，發現apache lucene由較新的版本發佈3.3.0。 Jackrabbit在它的發行版中使用lucene 3.0.3
當我發佈「jackrabbit friendly」lucene版本測試開始通過。