Java Web服务正在联系配置单元-DataNucleus ClassLoaderResolver错误

我有一个JavaWeb服务（使用我公司的专有技术制作），用于服务请求/响应，在处理请求时，它试图与Hadoop的配置单元对话并执行查询。但是，当我尝试初始化连接时，它会立即失败

这是它失败的代码行。我主要使用以下代码示例：

以下是堆栈跟踪：

javax.jdo.JDOFatalInternalException: Unexpected exception caught.
    at javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1186)
    at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:803)
    at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:698)
    at org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:246)
    at org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:275)
    at org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:208)
    at org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:183)
    at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:70)
    at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:130)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:407)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.executeWithRetry(HiveMetaStore.java:359)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:504)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:266)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:228)
    at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.<init>(HiveServer.java:131)
    at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.<init>(HiveServer.java:121)
    at org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:76)
    at org.apache.hadoop.hive.jdbc.HiveDriver.connect(HiveDriver.java:104)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:185)
    at (...my package...).RemoteCtrbTest.kickOffRemoteTest(RemoteCtrbTest.java:52)

NestedThrowablesStackTrace:
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at javax.jdo.JDOHelper$16.run(JDOHelper.java:1958)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.jdo.JDOHelper.invoke(JDOHelper.java:1953)
    at javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1159)
    at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:803)
    at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:698)
    at org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:246)
    at org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:275)
    at org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:208)
    at org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:183)
    at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:70)
    at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:130)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:407)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.executeWithRetry(HiveMetaStore.java:359)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:504)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:266)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:228)
    at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.<init>(HiveServer.java:131)
    at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.<init>(HiveServer.java:121)
    at org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:76)
    at org.apache.hadoop.hive.jdbc.HiveDriver.connect(HiveDriver.java:104)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:185)
    at (...my package...).RemoteCtrbTest.kickOffRemoteTest(RemoteCtrbTest.java:52)

Caused by: org.datanucleus.exceptions.NucleusUserException: Persistence process has been specified to use a ClassLoaderResolver of name "jdo" yet this has not been found by the DataNucleus plugin mechanism. Please check your CLASSPATH and plugin specification.
    at org.datanucleus.OMFContext.getClassLoaderResolver(OMFContext.java:319)
    at org.datanucleus.OMFContext.<init>(OMFContext.java:165)
    at org.datanucleus.OMFContext.<init>(OMFContext.java:137)
    at org.datanucleus.ObjectManagerFactoryImpl.initialiseOMFContext(ObjectManagerFactoryImpl.java:132)
    at org.datanucleus.jdo.JDOPersistenceManagerFactory.initialiseProperties(JDOPersistenceManagerFactory.java:363)
    at org.datanucleus.jdo.JDOPersistenceManagerFactory.<init>(JDOPersistenceManagerFactory.java:307)
    at org.datanucleus.jdo.JDOPersistenceManagerFactory.createPersistenceManagerFactory(JDOPersistenceManagerFactory.java:255)
    at org.datanucleus.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory(JDOPersistenceManagerFactory.java:182)
    ... 35 more

javax.jdo.JDOFatalInternalException:捕获到意外异常。
在javax.jdo.JDOHelper.InvokeGetPersistenceManager工厂实现中（JDOHelper.java:1186）
位于javax.jdo.JDOHelper.getPersistenceManagerFactory（JDOHelper.java:803）
位于javax.jdo.JDOHelper.getPersistenceManagerFactory（JDOHelper.java:698）
位于org.apache.hadoop.hive.metastore.ObjectStore.getPMF（ObjectStore.java:246）
位于org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager（ObjectStore.java:275）
位于org.apache.hadoop.hive.metastore.ObjectStore.initialize（ObjectStore.java:208）
位于org.apache.hadoop.hive.metastore.ObjectStore.setConf（ObjectStore.java:183）
位于org.apache.hadoop.util.ReflectionUtils.setConf（ReflectionUtils.java:70）
位于org.apache.hadoop.util.ReflectionUtils.newInstance（ReflectionUtils.java:130）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS（HiveMetaStore.java:407）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.executeWithRetry（HiveMetaStore.java:359）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB（HiveMetaStore.java:504）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init（HiveMetaStore.java:266）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler。（HiveMetaStore.java:228）
位于org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.（HiveServer.java:131）
位于org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.（HiveServer.java:121）
位于org.apache.hadoop.hive.jdbc.HiveConnection.（HiveConnection.java:76）
位于org.apache.hadoop.hive.jdbc.HiveDriver.connect（HiveDriver.java:104）
位于java.sql.DriverManager.getConnection（DriverManager.java:582）
位于java.sql.DriverManager.getConnection（DriverManager.java:185）
在（…我的包…）.RemoteCtrbTest.kickOffRemoteTest（RemoteCtrbTest.java:52）
NestedThrowablesStackTrace：
java.lang.reflect.InvocationTargetException
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:39）
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:25）中
位于java.lang.reflect.Method.invoke（Method.java:597）
javax.jdo.JDOHelper$16.run（JDOHelper.java:1958）
位于java.security.AccessController.doPrivileged（本机方法）
位于javax.jdo.JDOHelper.invoke（JDOHelper.java:1953）
在javax.jdo.JDOHelper.InvokeGetPersistenceManager工厂实现中（JDOHelper.java:1159）
位于javax.jdo.JDOHelper.getPersistenceManagerFactory（JDOHelper.java:803）
位于javax.jdo.JDOHelper.getPersistenceManagerFactory（JDOHelper.java:698）
位于org.apache.hadoop.hive.metastore.ObjectStore.getPMF（ObjectStore.java:246）
位于org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager（ObjectStore.java:275）
位于org.apache.hadoop.hive.metastore.ObjectStore.initialize（ObjectStore.java:208）
位于org.apache.hadoop.hive.metastore.ObjectStore.setConf（ObjectStore.java:183）
位于org.apache.hadoop.util.ReflectionUtils.setConf（ReflectionUtils.java:70）
位于org.apache.hadoop.util.ReflectionUtils.newInstance（ReflectionUtils.java:130）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS（HiveMetaStore.java:407）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.executeWithRetry（HiveMetaStore.java:359）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB（HiveMetaStore.java:504）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init（HiveMetaStore.java:266）
位于org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler。（HiveMetaStore.java:228）
位于org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.（HiveServer.java:131）
位于org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.（HiveServer.java:121）
位于org.apache.hadoop.hive.jdbc.HiveConnection.（HiveConnection.java:76）
位于org.apache.hadoop.hive.jdbc.HiveDriver.connect（HiveDriver.java:104）
位于java.sql.DriverManager.getConnection（DriverManager.java:582）
位于java.sql.DriverManager.getConnection（DriverManager.java:185）
在（…我的包…）.RemoteCtrbTest.kickOffRemoteTest（RemoteCtrbTest.java:52）
原因：org.datanucleus.exceptions.nucleuserexception:持久化进程已指定为使用名为“jdo”的ClassLoaderResolver，但datanucleus插件机制尚未找到该进程。请检查您的类路径和插件规范。
位于org.datanucleus.OMFContext.getClassLoaderResolver（OMFContext.java:319）
位于org.datanucleus.OMFContext（OMFContext.java:165）
位于org.datanucleus.OMFContext（OMFContext.java:137）
位于org.datanucleus.ObjectManagerFactoryImpl.initialiseOMFContext（ObjectManagerFactoryImpl.java:132）
位于org.datanucleus.jdo.JDOPersistenceManagerFactory.initialiseProperties（JDOPersistenceManagerFactory.java:363）
位于org.datanucleus.jdo.JDOPersistenceManagerFactory。（JDOPersistenceManagerFactory.java:307）
位于org.datanucleus.jdo.JDOPersistenceManagerFactory.createPersistenceManagerFactory（JDOPersistenceManagerFactory.java:255）
位于org.datanucleus.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory（JDOPersistenceManagerFactory.java:182）
... 35多

我发现另一个问题也有类似的错误消息，但它是关于Maven的，不包含Hive（即在代码中使用DataNucleus的问题）：

我正在使用一个hive-site.xml文件来指定配置单元和的一些属性

javax.jdo.JDOFatalInternalException: Unexpected exception caught.
    at javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1186)
    at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:803)
    at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:698)
    at org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:246)
    at org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:275)
    at org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:208)
    at org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:183)
    at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:70)
    at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:130)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:407)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.executeWithRetry(HiveMetaStore.java:359)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:504)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:266)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:228)
    at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.<init>(HiveServer.java:131)
    at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.<init>(HiveServer.java:121)
    at org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:76)
    at org.apache.hadoop.hive.jdbc.HiveDriver.connect(HiveDriver.java:104)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:185)
    at (...my package...).RemoteCtrbTest.kickOffRemoteTest(RemoteCtrbTest.java:52)

NestedThrowablesStackTrace:
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at javax.jdo.JDOHelper$16.run(JDOHelper.java:1958)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.jdo.JDOHelper.invoke(JDOHelper.java:1953)
    at javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1159)
    at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:803)
    at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:698)
    at org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:246)
    at org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:275)
    at org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:208)
    at org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:183)
    at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:70)
    at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:130)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:407)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.executeWithRetry(HiveMetaStore.java:359)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:504)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:266)
    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:228)
    at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.<init>(HiveServer.java:131)
    at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.<init>(HiveServer.java:121)
    at org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:76)
    at org.apache.hadoop.hive.jdbc.HiveDriver.connect(HiveDriver.java:104)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:185)
    at (...my package...).RemoteCtrbTest.kickOffRemoteTest(RemoteCtrbTest.java:52)

Caused by: org.datanucleus.exceptions.NucleusUserException: Persistence process has been specified to use a ClassLoaderResolver of name "jdo" yet this has not been found by the DataNucleus plugin mechanism. Please check your CLASSPATH and plugin specification.
    at org.datanucleus.OMFContext.getClassLoaderResolver(OMFContext.java:319)
    at org.datanucleus.OMFContext.<init>(OMFContext.java:165)
    at org.datanucleus.OMFContext.<init>(OMFContext.java:137)
    at org.datanucleus.ObjectManagerFactoryImpl.initialiseOMFContext(ObjectManagerFactoryImpl.java:132)
    at org.datanucleus.jdo.JDOPersistenceManagerFactory.initialiseProperties(JDOPersistenceManagerFactory.java:363)
    at org.datanucleus.jdo.JDOPersistenceManagerFactory.<init>(JDOPersistenceManagerFactory.java:307)
    at org.datanucleus.jdo.JDOPersistenceManagerFactory.createPersistenceManagerFactory(JDOPersistenceManagerFactory.java:255)
    at org.datanucleus.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory(JDOPersistenceManagerFactory.java:182)
    ... 35 more

<property>
  <name>datanucleus.autoCreateSchema</name>
  <value>false</value>
</property>

<property>
  <name>datanucleus.fixedDatastore</name>
  <value>true</value>
</property>

<property>
  <name>datanucleus.classLoaderResolverName</name>
  <value>jdo</value>
</property>

<property>
  <name>javax.jdo.PersistenceManagerFactoryClass</name>
  <value>org.datanucleus.jdo.JDOPersistenceManagerFactory</value>
</property>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <version>2.4</version>
            <executions>
                <execution>
                    <id>copy-dependencies</id>
                    <phase>package</phase>
                    <goals>
                        <goal>copy-dependencies</goal>
                    </goals>
                    <configuration>
                        <outputDirectory>${project.build.directory}/jars</outputDirectory>
                        <overWriteReleases>false</overWriteReleases>
                        <overWriteSnapshots>false</overWriteSnapshots>
                        <overWriteIfNewer>true</overWriteIfNewer>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

<hdp:configuration>
    fs.default.name=${fs.default.name.url}
    mapred.job.tracker=${mapred.job.tracker.url}
</hdp:configuration>

<hdp:hive-client-factory host="${hadoop.hive.host.url}" port="10000"
    xmlns="http://www.springframework.org/schema/hadoop" />

<hdp:hive-template />

@Autowired
HiveTemplate hiveTemplate;

List<String> list = hiveTemplate.query(queryString, parameterMap);