27-Feb-2016 19:32:04.993 INFO [http-nio-8000-exec-5] org.hibernate.Version.logVersion HHH000412: Hibernate Core {5.0.7.Final}
27-Feb-2016 19:32:05.000 INFO [http-nio-8000-exec-5] org.hibernate.cfg.Environment.<clinit> HHH000206: hibernate.properties not found
27-Feb-2016 19:32:05.007 INFO [http-nio-8000-exec-5] org.hibernate.cfg.Environment.buildBytecodeProvider HHH000021: Bytecode provider name : javassist
27-Feb-2016 19:32:05.875 INFO [http-nio-8000-exec-5] org.hibernate.annotations.common.reflection.java.JavaReflectionManager.<clinit> HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
27-Feb-2016 19:32:06.116 WARN [http-nio-8000-exec-5] org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure HHH10001002: Using Hibernate built-in connection pool (not for production use!)
27-Feb-2016 19:32:06.124 INFO [http-nio-8000-exec-5] org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildCreator HHH10001005: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:2254/SEABATTLE]
27-Feb-2016 19:32:06.125 INFO [http-nio-8000-exec-5] org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildCreator HHH10001001: Connection properties: {user=seabattleadmin, password=****}
27-Feb-2016 19:32:06.126 INFO [http-nio-8000-exec-5] org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildCreator HHH10001003: Autocommit mode: false
27-Feb-2016 19:32:06.132 INFO [http-nio-8000-exec-5] org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init> HHH000115: Hibernate connection pool size: 1 (min=1)
27-Feb-2016 19:32:06.636 INFO [http-nio-8000-exec-5] org.hibernate.dialect.Dialect.<init> HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
27-Feb-2016 19:32:06.879 SEVERE [http-nio-8000-exec-5] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [RegistrationServlet] in context with path [] threw exception [Servlet execution threw an exception] with root cause
 java.lang.ClassNotFoundException: javax.persistence.Converter
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.categorizeAnnotatedClass(AnnotationMetadataSourceProcessorImpl.java:115)
	at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.<init>(AnnotationMetadataSourceProcessorImpl.java:104)
	at org.hibernate.boot.model.process.spi.MetadataBuildingProcess$1.<init>(MetadataBuildingProcess.java:147)
	at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:141)
	at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
	at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418)
	at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87)
	at org.hibernate.boot.MetadataSources.buildMetadata(MetadataSources.java:179)
	at ru.ifmo.practice.seabattle.db.HibernateUtil.setUp(HibernateUtil.java:37)
	at ru.ifmo.practice.seabattle.db.HibernateUtil.<init>(HibernateUtil.java:28)
	at ru.ifmo.practice.seabattle.db.HibernateUtil.<init>(HibernateUtil.java:8)
	at ru.ifmo.practice.seabattle.db.HibernateUtil$HibernateUtilHolder.<clinit>(HibernateUtil.java:16)
	at ru.ifmo.practice.seabattle.db.HibernateUtil.getInstance(HibernateUtil.java:24)
	at ru.ifmo.practice.seabattle.db.DAO.Impl.UserDAOImpl.transaction(UserDAOImpl.java:21)
	at ru.ifmo.practice.seabattle.db.DAO.Impl.UserDAOImpl.isNicknameUnique(UserDAOImpl.java:64)
	at ru.ifmo.practice.seabattle.server.loginserver.RegistrationServlet.doPost(RegistrationServlet.java:60)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)