为提高效率，提问时请提供以下信息，问题描述清晰可优先响应。
【DM版本】:8
【操作系统】：CentOS7
【CPU】:
【问题描述】*：使用达梦DM作为Hive的元数据库时，启动后报空指针异常，参考的文章为：国产数据库达梦适配hive踩过的坑

2023-06-03T22:55:49,762 ERROR [main] metastore.RetryingHMSHandler: Retrying HMSHandler after 2000 ms (attempt 2 of 10) with error: javax.jdo.JDOFatalUserException: Failed initialising database. Please check that your database JDBC driver is accessible, and the database URL and username/password are correct. Exception : null
java.lang.NullPointerException
        at org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.release(ConnectionFactoryImpl.java:320)
        at org.datanucleus.store.rdbms.RDBMSStoreManager.<init>(RDBMSStoreManager.java:399)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:606)
        at org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:301)
        at org.datanucleus.NucleusContextHelper.createStoreManagerForProperties(NucleusContextHelper.java:133)
        at org.datanucleus.PersistenceNucleusContextImpl.initialise(PersistenceNucleusContextImpl.java:422)
        at org.datanucleus.api.jdo.JDOPersistenceManagerFactory.freezeConfiguration(JDOPersistenceManagerFactory.java:817)
        at org.datanucleus.api.jdo.JDOPersistenceManagerFactory.createPersistenceManagerFactory(JDOPersistenceManagerFactory.java:334)
        at org.datanucleus.api.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory(JDOPersistenceManagerFactory.java:213)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at javax.jdo.JDOHelper$16.run(JDOHelper.java:1965)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.jdo.JDOHelper.invoke(JDOHelper.java:1960)
        at javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1166)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:808)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:701)
        at org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:650)
        at org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:693)
        at org.apache.hadoop.hive.metastore.ObjectStore.initializeHelper(ObjectStore.java:483)
        at org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:420)
        at org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:375)
        at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:77)
        at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:137)
        at org.apache.hadoop.hive.metastore.RawStoreProxy.<init>(RawStoreProxy.java:59)
        at org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:67)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStoreForConf(HiveMetaStore.java:718)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMSForConf(HiveMetaStore.java:696)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:690)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:773)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:538)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:147)
        at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:108)
        at org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:80)
        at org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:93)
        at org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:8667)
        at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:169)
        at org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:94)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at org.apache.hadoop.hive.metastore.utils.JavaUtils.newInstance(JavaUtils.java:84)
        at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:95)
        at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:148)
        at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:119)
        at org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:4299)
        at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:4367)
        at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:4347)
        at org.apache.hadoop.hive.ql.metadata.Hive.getAllFunctions(Hive.java:4603)
        at org.apache.hadoop.hive.ql.metadata.Hive.reloadFunctions(Hive.java:291)
        at org.apache.hadoop.hive.ql.metadata.Hive.registerAllFunctionsOnce(Hive.java:274)
        at org.apache.hadoop.hive.ql.metadata.Hive.<init>(Hive.java:435)
        at org.apache.hadoop.hive.ql.metadata.Hive.create(Hive.java:375)
        at org.apache.hadoop.hive.ql.metadata.Hive.getInternal(Hive.java:355)
        at org.apache.hadoop.hive.ql.metadata.Hive.get(Hive.java:331)
        at org.apache.hadoop.hive.ql.session.SessionState.setAuthorizerV2Config(SessionState.java:960)
        at org.apache.hadoop.hive.ql.session.SessionState.setupAuth(SessionState.java:924)
        at org.apache.hadoop.hive.ql.session.SessionState.applyAuthorizationPolicy(SessionState.java:1893)
        at org.apache.hive.service.cli.CLIService.applyAuthorizationConfigPolicy(CLIService.java:131)
        at org.apache.hive.service.cli.CLIService.init(CLIService.java:115)
        at org.apache.hive.service.CompositeService.init(CompositeService.java:59)
        at org.apache.hive.service.server.HiveServer2.init(HiveServer2.java:230)
        at org.apache.hive.service.server.HiveServer2.startHiveServer2(HiveServer2.java:1036)
        at org.apache.hive.service.server.HiveServer2.access$1600(HiveServer2.java:140)
        at org.apache.hive.service.server.HiveServer2$StartOptionExecutor.execute(HiveServer2.java:1305)
        at org.apache.hive.service.server.HiveServer2.main(HiveServer2.java:1149)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.hadoop.util.RunJar.run(RunJar.java:239)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:153)