Hello. Sir.
I have some problem…
Do you help me? 
**XWiki initialization failed!
**com.sun.jna.platform.win32.Sspi$SecBufferDesc.(I[B)V
**class java.lang.NoSuchMethodError: com.sun.jna.platform.win32.Sspi$SecBufferDesc.(I[B)V
** at org.postgresql.sspi.SSPIClient.continueSSPI(SSPIClient.java:204)
** at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:752)
** at org.postgresql.core.v3.ConnectionFactoryImpl.tryConnect(ConnectionFactoryImpl.java:161)
** at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:213)
** at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:51)
** at org.postgresql.jdbc.PgConnection.(PgConnection.java:225)
** at org.postgresql.Driver.makeConnection(Driver.java:465)
** at org.postgresql.Driver.connect(Driver.java:264)
** at org.apache.commons.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:52)
** at org.apache.commons.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:357)
** at org.apache.commons.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:103)
** at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:652)
** at org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:534)
** at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:734)
** at com.xpn.xwiki.store.DBCPConnectionProvider.configure(DBCPConnectionProvider.java:225)
** at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:107)
** at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:246)
** at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
** at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145)
** at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66)
** at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35)
** at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101)
** at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263)
** at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237)
** at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
** at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152)
** at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286)
** at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243)
** at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
** at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.(InFlightMetadataCollectorImpl.java:176)
** at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:118)
** at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
** at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:473)
** at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:84)
** at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:689)
** at com.xpn.xwiki.internal.store.hibernate.HibernateStore.build(HibernateStore.java:298)
** at com.xpn.xwiki.internal.store.hibernate.HibernateStore.initHibernate(HibernateStore.java:232)
** at com.xpn.xwiki.store.XWikiHibernateBaseStore.initHibernate(XWikiHibernateBaseStore.java:193)
** at com.xpn.xwiki.store.XWikiHibernateBaseStore.checkHibernate(XWikiHibernateBaseStore.java:482)
** at com.xpn.xwiki.store.XWikiHibernateStore.loadXWikiDoc(XWikiHibernateStore.java:973)
** at com.xpn.xwiki.store.XWikiCacheStore.loadXWikiDoc(XWikiCacheStore.java:394)
** at com.xpn.xwiki.XWiki.getDocument(XWiki.java:2144)
** at com.xpn.xwiki.XWiki.getDocument(XWiki.java:2206)
** at com.xpn.xwiki.XWiki.initializeMandatoryDocument(XWiki.java:1418)
** at com.xpn.xwiki.XWiki.initializeMandatoryDocuments(XWiki.java:1385)
** at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:1290)
** at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:1227)
** at com.xpn.xwiki.XWiki.(XWiki.java:1200)
** at com.xpn.xwiki.internal.XWikiInitializerJob.runInternal(XWikiInitializerJob.java:117)
** at org.xwiki.job.AbstractJob.runInContext(AbstractJob.java:243)
** at org.xwiki.job.AbstractJob.run(AbstractJob.java:220)
** at java.lang.Thread.run(Unknown Source)
please. Tell me how to solution. 
