학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요.1. 강의 내용과 관련된 질문을 남겨주세요.2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요.(자주 하는 질문 링크: https://bit.ly/3fX6ygx)3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요.(질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG)질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요.=========================================[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (아니오)3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예)[질문 내용]여기에 질문 내용을 남겨주세요.  14:56:10.540 [main] DEBUG org.jboss.logging - Logging Provider: org.jboss.logging.Log4j2LoggerProvider14:56:10.630 [main] DEBUG org.hibernate.jpa.HibernatePersistenceProvider - Located and parsed 1 persistence units; checking each14:56:10.630 [main] DEBUG org.hibernate.jpa.HibernatePersistenceProvider - Checking persistence-unit [name=hello, explicit-provider=null] against incoming persistence unit name [hello]14:56:10.631 [main] DEBUG org.hibernate.jpa.boot.spi.ProviderChecker - No PersistenceProvider explicitly requested, assuming Hibernate14:56:10.635 [main] DEBUG org.hibernate.jpa.internal.util.LogHelper - PersistenceUnitInfo [ name: hello persistence provider classname: null classloader: null excludeUnlistedClasses: false JTA datasource: null Non JTA datasource: null Transaction type: RESOURCE_LOCAL PU root URL: file:/D:/study/JAVA/SPRING/JPA/jpa_1st_class/target/classes/ Shared Cache Mode: null Validation Mode: null Jar files URLs [] Managed classes names [] Mapping files names [] Properties [ javax.persistence.jdbc.driver: org.h2.Driver javax.persistence.jdbc.password: hibernate.dialect: org.hibernate.dialect.H2Dialect javax.persistence.jdbc.url: jdbc:h2:tcp://localhost/~/test hibernate.show_sql: true hibernate.format_sql: true javax.persistence.jdbc.user: sa hibernate.use_sql_comments: true]14:56:10.639 [main] DEBUG org.hibernate.integrator.internal.IntegratorServiceImpl - Adding Integrator [org.hibernate.cfg.beanvalidation.BeanValidationIntegrator].14:56:10.641 [main] DEBUG org.hibernate.integrator.internal.IntegratorServiceImpl - Adding Integrator [org.hibernate.secure.spi.JaccIntegrator].14:56:10.644 [main] DEBUG org.hibernate.integrator.internal.IntegratorServiceImpl - Adding Integrator [org.hibernate.cache.internal.CollectionCacheInvalidator].14:56:10.686 [main] INFO org.hibernate.Version - HHH000412: Hibernate ORM core version 5.6.15.Final14:56:10.687 [main] DEBUG org.hibernate.cfg.Environment - HHH000206: hibernate.properties not found14:56:10.792 [main] DEBUG org.hibernate.service.spi.ServiceBinding - Overriding existing service binding [org.hibernate.secure.spi.JaccService]14:56:10.805 [main] DEBUG org.hibernate.cache.internal.RegionFactoryInitiator - Cannot default RegionFactory based on registered strategies as [] RegionFactory strategies were registered14:56:10.807 [main] DEBUG org.hibernate.cache.internal.RegionFactoryInitiator - Cache region factory : org.hibernate.cache.internal.NoCachingRegionFactory14:56:10.820 [main] INFO org.hibernate.annotations.common.Version - HCANN000001: Hibernate Commons Annotations {5.0.4.Final}14:56:10.935 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration boolean -> org.hibernate.type.BooleanType@3e30646a14:56:10.936 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration boolean -> org.hibernate.type.BooleanType@3e30646a14:56:10.937 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Boolean -> org.hibernate.type.BooleanType@3e30646a14:56:10.937 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration numeric_boolean -> org.hibernate.type.NumericBooleanType@3ed242a414:56:10.938 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration true_false -> org.hibernate.type.TrueFalseType@2d96543c14:56:10.938 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration yes_no -> org.hibernate.type.YesNoType@cd1d76114:56:10.939 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration byte -> org.hibernate.type.ByteType@49d3c82314:56:10.940 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration byte -> org.hibernate.type.ByteType@49d3c82314:56:10.940 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Byte -> org.hibernate.type.ByteType@49d3c82314:56:10.941 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration character -> org.hibernate.type.CharacterType@550a196714:56:10.941 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration char -> org.hibernate.type.CharacterType@550a196714:56:10.941 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Character -> org.hibernate.type.CharacterType@550a196714:56:10.942 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration short -> org.hibernate.type.ShortType@f80945f14:56:10.943 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration short -> org.hibernate.type.ShortType@f80945f14:56:10.943 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Short -> org.hibernate.type.ShortType@f80945f14:56:10.944 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration integer -> org.hibernate.type.IntegerType@77b1472414:56:10.944 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration int -> org.hibernate.type.IntegerType@77b1472414:56:10.945 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Integer -> org.hibernate.type.IntegerType@77b1472414:56:10.946 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration long -> org.hibernate.type.LongType@7b84fcf814:56:10.947 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration long -> org.hibernate.type.LongType@7b84fcf814:56:10.947 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Long -> org.hibernate.type.LongType@7b84fcf814:56:10.948 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration float -> org.hibernate.type.FloatType@2cc44ad14:56:10.948 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration float -> org.hibernate.type.FloatType@2cc44ad14:56:10.948 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Float -> org.hibernate.type.FloatType@2cc44ad14:56:10.949 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration double -> org.hibernate.type.DoubleType@33b1c5c514:56:10.950 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration double -> org.hibernate.type.DoubleType@33b1c5c514:56:10.950 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Double -> org.hibernate.type.DoubleType@33b1c5c514:56:10.951 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration big_decimal -> org.hibernate.type.BigDecimalType@4535b6d514:56:10.952 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.math.BigDecimal -> org.hibernate.type.BigDecimalType@4535b6d514:56:10.954 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration big_integer -> org.hibernate.type.BigIntegerType@42721fe14:56:10.954 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.math.BigInteger -> org.hibernate.type.BigIntegerType@42721fe14:56:10.955 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration string -> org.hibernate.type.StringType@28e8dde314:56:10.955 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.String -> org.hibernate.type.StringType@28e8dde314:56:10.955 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration nstring -> org.hibernate.type.StringNVarcharType@767e20cf14:56:10.956 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration ncharacter -> org.hibernate.type.CharacterNCharType@10ded6a914:56:10.956 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration url -> org.hibernate.type.UrlType@373ebf7414:56:10.957 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.net.URL -> org.hibernate.type.UrlType@373ebf7414:56:10.957 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration Duration -> org.hibernate.type.DurationType@5ccbeb6414:56:10.958 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.time.Duration -> org.hibernate.type.DurationType@5ccbeb6414:56:10.964 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration Instant -> org.hibernate.type.InstantType@2ceb80a114:56:10.964 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.time.Instant -> org.hibernate.type.InstantType@2ceb80a114:56:10.966 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration LocalDateTime -> org.hibernate.type.LocalDateTimeType@45815ffc14:56:10.966 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.time.LocalDateTime -> org.hibernate.type.LocalDateTimeType@45815ffc14:56:10.968 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration LocalDate -> org.hibernate.type.LocalDateType@158a3b2e14:56:10.968 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.time.LocalDate -> org.hibernate.type.LocalDateType@158a3b2e14:56:10.970 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration LocalTime -> org.hibernate.type.LocalTimeType@71cf1b0714:56:10.970 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.time.LocalTime -> org.hibernate.type.LocalTimeType@71cf1b0714:56:10.971 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration OffsetDateTime -> org.hibernate.type.OffsetDateTimeType@12bd8a6414:56:10.971 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.time.OffsetDateTime -> org.hibernate.type.OffsetDateTimeType@12bd8a6414:56:10.972 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration OffsetTime -> org.hibernate.type.OffsetTimeType@3a39345514:56:10.973 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.time.OffsetTime -> org.hibernate.type.OffsetTimeType@3a39345514:56:10.974 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration ZonedDateTime -> org.hibernate.type.ZonedDateTimeType@101639ae14:56:10.974 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.time.ZonedDateTime -> org.hibernate.type.ZonedDateTimeType@101639ae14:56:10.975 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration date -> org.hibernate.type.DateType@180da66314:56:10.976 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.sql.Date -> org.hibernate.type.DateType@180da66314:56:10.977 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration time -> org.hibernate.type.TimeType@53f0a4cb14:56:10.977 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.sql.Time -> org.hibernate.type.TimeType@53f0a4cb14:56:10.978 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration timestamp -> org.hibernate.type.TimestampType@293a5f7514:56:10.978 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.sql.Timestamp -> org.hibernate.type.TimestampType@293a5f7514:56:10.979 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.util.Date -> org.hibernate.type.TimestampType@293a5f7514:56:10.980 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration dbtimestamp -> org.hibernate.type.DbTimestampType@2dd29a5914:56:10.982 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration calendar -> org.hibernate.type.CalendarType@61c9c3fd14:56:10.982 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.util.Calendar -> org.hibernate.type.CalendarType@61c9c3fd14:56:10.982 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.util.GregorianCalendar -> org.hibernate.type.CalendarType@61c9c3fd14:56:10.984 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration calendar_date -> org.hibernate.type.CalendarDateType@5cdd09b114:56:10.985 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration calendar_time -> org.hibernate.type.CalendarTimeType@708400f614:56:10.986 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration locale -> org.hibernate.type.LocaleType@3cc41abc14:56:10.986 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.util.Locale -> org.hibernate.type.LocaleType@3cc41abc14:56:10.987 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration currency -> org.hibernate.type.CurrencyType@4c2cc63914:56:10.987 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.util.Currency -> org.hibernate.type.CurrencyType@4c2cc63914:56:10.988 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration timezone -> org.hibernate.type.TimeZoneType@52d645b114:56:10.988 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.util.TimeZone -> org.hibernate.type.TimeZoneType@52d645b114:56:10.989 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration class -> org.hibernate.type.ClassType@25e2ab5a14:56:10.989 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Class -> org.hibernate.type.ClassType@25e2ab5a14:56:10.990 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration uuid-binary -> org.hibernate.type.UUIDBinaryType@5066d65f14:56:10.990 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.util.UUID -> org.hibernate.type.UUIDBinaryType@5066d65f14:56:10.990 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration uuid-char -> org.hibernate.type.UUIDCharType@58ffcbd714:56:10.991 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration binary -> org.hibernate.type.BinaryType@54e22bdd14:56:10.991 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration byte[] -> org.hibernate.type.BinaryType@54e22bdd14:56:10.991 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration [B -> org.hibernate.type.BinaryType@54e22bdd14:56:10.992 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration wrapper-binary -> org.hibernate.type.WrapperBinaryType@e84a8e114:56:10.993 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration Byte[] -> org.hibernate.type.WrapperBinaryType@e84a8e114:56:10.993 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration [Ljava.lang.Byte; -> org.hibernate.type.WrapperBinaryType@e84a8e114:56:10.994 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration row_version -> org.hibernate.type.RowVersionType@5e01a98214:56:10.994 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration image -> org.hibernate.type.ImageType@704f159114:56:10.995 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration characters -> org.hibernate.type.CharArrayType@4b9df8a14:56:10.995 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration char[] -> org.hibernate.type.CharArrayType@4b9df8a14:56:10.995 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration [C -> org.hibernate.type.CharArrayType@4b9df8a14:56:10.996 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration wrapper-characters -> org.hibernate.type.CharacterArrayType@18b0930f14:56:10.997 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration [Ljava.lang.Character; -> org.hibernate.type.CharacterArrayType@18b0930f14:56:10.997 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration Character[] -> org.hibernate.type.CharacterArrayType@18b0930f14:56:10.998 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration text -> org.hibernate.type.TextType@256f827414:56:10.999 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration ntext -> org.hibernate.type.NTextType@68fa0ba814:56:11.001 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration blob -> org.hibernate.type.BlobType@18c5069b14:56:11.002 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.sql.Blob -> org.hibernate.type.BlobType@18c5069b14:56:11.002 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration materialized_blob -> org.hibernate.type.MaterializedBlobType@781f10f214:56:11.003 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration clob -> org.hibernate.type.ClobType@5553d0f514:56:11.003 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.sql.Clob -> org.hibernate.type.ClobType@5553d0f514:56:11.004 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration nclob -> org.hibernate.type.NClobType@424fd31014:56:11.005 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.sql.NClob -> org.hibernate.type.NClobType@424fd31014:56:11.005 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration materialized_clob -> org.hibernate.type.MaterializedClobType@6e6d5d2914:56:11.005 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration materialized_nclob -> org.hibernate.type.MaterializedNClobType@c5ee75e14:56:11.006 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration serializable -> org.hibernate.type.SerializableType@696f021214:56:11.008 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration object -> org.hibernate.type.ObjectType@42f33b5d14:56:11.008 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration java.lang.Object -> org.hibernate.type.ObjectType@42f33b5d14:56:11.009 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration imm_date -> org.hibernate.type.AdaptedImmutableType@3f07b12c14:56:11.009 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration imm_time -> org.hibernate.type.AdaptedImmutableType@4bd1f8dd14:56:11.010 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration imm_timestamp -> org.hibernate.type.AdaptedImmutableType@7096b47414:56:11.010 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration imm_dbtimestamp -> org.hibernate.type.AdaptedImmutableType@3e14c16d14:56:11.010 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration imm_calendar -> org.hibernate.type.AdaptedImmutableType@3c98995214:56:11.010 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration imm_calendar_date -> org.hibernate.type.AdaptedImmutableType@784b990c14:56:11.011 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration imm_binary -> org.hibernate.type.AdaptedImmutableType@3d3ba76514:56:11.011 [main] DEBUG org.hibernate.type.BasicTypeRegistry - Adding type registration imm_serializable -> org.hibernate.type.AdaptedImmutableType@25bc060614:56:11.020 [main] DEBUG org.hibernate.boot.internal.BootstrapContextImpl - Injecting ScanEnvironment [org.hibernate.jpa.boot.internal.StandardJpaScanEnvironmentImpl@549949be] into BootstrapContext; was [null]14:56:11.021 [main] DEBUG org.hibernate.boot.internal.BootstrapContextImpl - Injecting ScanOptions [org.hibernate.boot.archive.scan.internal.StandardScanOptions@4b3a45f1] into BootstrapContext; was [org.hibernate.boot.archive.scan.internal.StandardScanOptions@17a87e37]14:56:11.058 [main] DEBUG org.hibernate.boot.internal.BootstrapContextImpl - Injecting JPA temp ClassLoader [null] into BootstrapContext; was [null]14:56:11.058 [main] DEBUG org.hibernate.boot.internal.ClassLoaderAccessImpl - ClassLoaderAccessImpl#injectTempClassLoader(null) [was null]14:56:11.066 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [uuid2] -> [org.hibernate.id.UUIDGenerator]14:56:11.067 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [guid] -> [org.hibernate.id.GUIDGenerator]14:56:11.068 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [uuid] -> [org.hibernate.id.UUIDHexGenerator]14:56:11.068 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [uuid.hex] -> [org.hibernate.id.UUIDHexGenerator]14:56:11.069 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [assigned] -> [org.hibernate.id.Assigned]14:56:11.070 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [identity] -> [org.hibernate.id.IdentityGenerator]14:56:11.070 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [select] -> [org.hibernate.id.SelectGenerator]14:56:11.071 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [sequence] -> [org.hibernate.id.enhanced.SequenceStyleGenerator]14:56:11.072 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [seqhilo] -> [org.hibernate.id.SequenceHiLoGenerator]14:56:11.072 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [increment] -> [org.hibernate.id.IncrementGenerator]14:56:11.073 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [foreign] -> [org.hibernate.id.ForeignGenerator]14:56:11.073 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [sequence-identity] -> [org.hibernate.id.SequenceIdentityGenerator]14:56:11.073 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [enhanced-sequence] -> [org.hibernate.id.enhanced.SequenceStyleGenerator]14:56:11.074 [main] DEBUG org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory - Registering IdentifierGenerator strategy [enhanced-table] -> [org.hibernate.id.enhanced.TableGenerator]14:56:11.077 [main] WARN org.hibernate.orm.connections.pooling - HHH10001002: Using Hibernate built-in connection pool (not for production use!)14:56:11.081 [main] INFO org.hibernate.orm.connections.pooling - HHH10001005: using driver [org.h2.Driver] at URL [jdbc:h2:tcp://localhost/~/test]14:56:11.082 [main] INFO org.hibernate.orm.connections.pooling - HHH10001001: Connection properties: {password=, user=sa}14:56:11.082 [main] INFO org.hibernate.orm.connections.pooling - HHH10001003: Autocommit mode: false14:56:11.086 [main] DEBUG org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl - Initializing Connection pool with 1 Connections14:56:11.086 [main] INFO org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl - HHH000115: Hibernate connection pool size: 20 (min=1)14:56:11.134 [main] DEBUG org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator - Database -> name : H2 version : 1.4.199 (2019-03-13) major : 1 minor : 414:56:11.135 [main] DEBUG org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator - Driver -> name : H2 JDBC Driver version : 1.4.199 (2019-03-13) major : 1 minor : 414:56:11.136 [main] DEBUG org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator - JDBC version : 4.114:56:11.143 [main] INFO org.hibernate.dialect.Dialect - HHH000400: Using dialect: org.hibernate.dialect.H2Dialect14:56:11.171 [main] DEBUG org.hibernate.engine.jdbc.env.spi.IdentifierHelperBuilder - JDBC driver metadata reported database stores quoted identifiers in neither upper, lower nor mixed case14:56:11.175 [main] DEBUG org.hibernate.engine.jdbc.env.internal.DefaultSchemaNameResolver - Unable to use Java 1.7 Connection#getSchema : An error occurred trying to resolve the connection default schema resolver: Feature not supported: "getSchema && remote session" [50100-199]14:56:11.178 [main] DEBUG org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentImpl - Unable to resolve connection default schema org.hibernate.HibernateException: Use of DefaultSchemaNameResolver requires Dialect to provide the proper SQL statement/command but provided Dialect [org.hibernate.dialect.H2Dialect] did not return anything from Dialect#getCurrentSchemaCommand at org.hibernate.engine.jdbc.env.internal.DefaultSchemaNameResolver$SchemaNameResolverFallbackDelegate.resolveSchemaName(DefaultSchemaNameResolver.java:100) at org.hibernate.engine.jdbc.env.internal.DefaultSchemaNameResolver.resolveSchemaName(DefaultSchemaNameResolver.java:76) at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentImpl.determineCurrentSchemaName(JdbcEnvironmentImpl.java:315) at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentImpl.<init>(JdbcEnvironmentImpl.java:273) at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:114) 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:272) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:246) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:223) at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:175) at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:295) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:252) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:223) at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:173) at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1460) at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1494) at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:56) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54) at hellojpa.JpaMain.main(JpaMain.java:10)14:56:11.192 [main] DEBUG org.hibernate.type.spi.TypeConfiguration$Scope - Scoping TypeConfiguration [org.hibernate.type.spi.TypeConfiguration@1c25b8a7] to MetadataBuildingContext [org.hibernate.boot.internal.MetadataBuildingContextRootImpl@200606de]14:56:11.213 [main] DEBUG org.hibernate.boot.model.relational.Namespace - Created database namespace [logicalName=Name{catalog=null, schema=null}, physicalName=Name{catalog=null, schema=null}]14:56:11.223 [main] DEBUG org.hibernate.cfg.AnnotationBinder - Binding entity from annotated class: hellojpa.Member14:56:11.234 [main] DEBUG org.hibernate.cfg.Ejb3Column - Binding column: Ejb3DiscriminatorColumn{logicalColumnName'DTYPE', discriminatorTypeName='string'}14:56:11.239 [main] DEBUG org.hibernate.cfg.annotations.EntityBinder - Import with entity name Member14:56:11.242 [main] DEBUG org.hibernate.cfg.annotations.EntityBinder - Bind entity hellojpa.Member on table Member14:56:11.255 [main] DEBUG org.hibernate.cfg.Ejb3Column - Binding column: Ejb3Column{table=org.hibernate.mapping.Table(Member), mappingColumn=id, insertable=true, updatable=true, unique=false}14:56:11.256 [main] DEBUG org.hibernate.boot.internal.ClassLoaderAccessImpl - Not known whether passed class name [hellojpa.Member] is safe14:56:11.257 [main] DEBUG org.hibernate.boot.internal.ClassLoaderAccessImpl - No temp ClassLoader provided; using live ClassLoader for loading potentially unsafe class : hellojpa.Member14:56:11.258 [main] DEBUG org.hibernate.cfg.annotations.PropertyBinder - MetadataSourceProcessor property id with lazy=false 14:56:11.259 [main] DEBUG org.hibernate.cfg.AbstractPropertyHolder - Attempting to locate auto-apply AttributeConverter for property [hellojpa.Member:id]14:56:11.261 [main] DEBUG org.hibernate.cfg.annotations.SimpleValueBinder - building SimpleValue for id14:56:11.263 [main] DEBUG org.hibernate.cfg.annotations.PropertyBinder - Building property id14:56:11.267 [main] DEBUG org.hibernate.cfg.BinderHelper - #makeIdGenerator(org.hibernate.mapping.SimpleValue([org.hibernate.mapping.Column(id)]), id, assigned, , ...)14:56:11.268 [main] DEBUG org.hibernate.cfg.Ejb3Column - Binding column: Ejb3Column{table=org.hibernate.mapping.Table(Member), mappingColumn=name, insertable=true, updatable=true, unique=false}14:56:11.269 [main] DEBUG org.hibernate.cfg.annotations.PropertyBinder - MetadataSourceProcessor property name with lazy=false 14:56:11.269 [main] DEBUG org.hibernate.cfg.AbstractPropertyHolder - Attempting to locate auto-apply AttributeConverter for property [hellojpa.Member:name]14:56:11.269 [main] DEBUG org.hibernate.cfg.annotations.SimpleValueBinder - building SimpleValue for name14:56:11.270 [main] DEBUG org.hibernate.cfg.annotations.PropertyBinder - Building property name14:56:11.275 [main] DEBUG org.hibernate.cfg.annotations.SimpleValueBinder - Starting fillSimpleValue for id14:56:11.276 [main] DEBUG org.hibernate.cfg.annotations.SimpleValueBinder - Starting fillSimpleValue for name14:56:11.278 [main] DEBUG org.hibernate.mapping.PrimaryKey - Forcing column [id] to be non-null as it is part of the primary key for table [member]14:56:11.305 [main] DEBUG org.hibernate.internal.SessionFactoryImpl - Building session factory14:56:11.306 [main] DEBUG org.hibernate.cfg.Settings - SessionFactory name : null14:56:11.306 [main] DEBUG org.hibernate.cfg.Settings - Automatic flush during beforeCompletion(): enabled14:56:11.307 [main] DEBUG org.hibernate.cfg.Settings - Automatic session close at end of transaction: disabled14:56:11.307 [main] DEBUG org.hibernate.cfg.Settings - Statistics: disabled14:56:11.307 [main] DEBUG org.hibernate.cfg.Settings - Deleted entity synthetic identifier rollback: disabled14:56:11.308 [main] DEBUG org.hibernate.cfg.Settings - Default entity-mode: pojo14:56:11.308 [main] DEBUG org.hibernate.cfg.Settings - Check Nullability in Core (should be disabled when Bean Validation is on): enabled14:56:11.308 [main] DEBUG org.hibernate.cfg.Settings - Allow initialization of lazy state outside session : disabled14:56:11.308 [main] DEBUG org.hibernate.cfg.Settings - Using BatchFetchStyle : LEGACY14:56:11.309 [main] DEBUG org.hibernate.cfg.Settings - Default batch fetch size: -114:56:11.309 [main] DEBUG org.hibernate.cfg.Settings - Maximum outer join fetch depth: null14:56:11.309 [main] DEBUG org.hibernate.cfg.Settings - Default null ordering: NONE14:56:11.309 [main] DEBUG org.hibernate.cfg.Settings - Order SQL updates by primary key: disabled14:56:11.310 [main] DEBUG org.hibernate.cfg.Settings - Order SQL inserts for batching: disabled14:56:11.310 [main] DEBUG org.hibernate.cfg.Settings - multi-tenancy strategy : NONE14:56:11.310 [main] DEBUG org.hibernate.cfg.Settings - JTA Track by Thread: enabled14:56:11.310 [main] DEBUG org.hibernate.cfg.Settings - Query language substitutions: {}14:56:11.310 [main] DEBUG org.hibernate.cfg.Settings - Named query checking : enabled14:56:11.310 [main] DEBUG org.hibernate.cfg.Settings - Second-level cache: disabled14:56:11.311 [main] DEBUG org.hibernate.cfg.Settings - Second-level query cache: disabled14:56:11.311 [main] DEBUG org.hibernate.cfg.Settings - Second-level query cache factory: null14:56:11.311 [main] DEBUG org.hibernate.cfg.Settings - Second-level cache region prefix: null14:56:11.311 [main] DEBUG org.hibernate.cfg.Settings - Optimize second-level cache for minimal puts: disabled14:56:11.311 [main] DEBUG org.hibernate.cfg.Settings - Structured second-level cache entries: disabled14:56:11.312 [main] DEBUG org.hibernate.cfg.Settings - Second-level cache direct-reference entries: disabled14:56:11.312 [main] DEBUG org.hibernate.cfg.Settings - Automatic eviction of collection cache: disabled14:56:11.312 [main] DEBUG org.hibernate.cfg.Settings - JDBC batch size: 1514:56:11.312 [main] DEBUG org.hibernate.cfg.Settings - JDBC batch updates for versioned data: enabled14:56:11.312 [main] DEBUG org.hibernate.cfg.Settings - Scrollable result sets: enabled14:56:11.313 [main] DEBUG org.hibernate.cfg.Settings - Wrap result sets: disabled14:56:11.313 [main] DEBUG org.hibernate.cfg.Settings - JDBC3 getGeneratedKeys(): enabled14:56:11.313 [main] DEBUG org.hibernate.cfg.Settings - JDBC result set fetch size: null14:56:11.313 [main] DEBUG org.hibernate.cfg.Settings - Connection release mode: AFTER_TRANSACTION14:56:11.313 [main] DEBUG org.hibernate.cfg.Settings - Generate SQL with comments: enabled14:56:11.313 [main] DEBUG org.hibernate.cfg.Settings - JPA compliance - query : disabled14:56:11.314 [main] DEBUG org.hibernate.cfg.Settings - JPA compliance - closed-handling : disabled14:56:11.314 [main] DEBUG org.hibernate.cfg.Settings - JPA compliance - lists : disabled14:56:11.314 [main] DEBUG org.hibernate.cfg.Settings - JPA compliance - transactions : disabled14:56:11.344 [main] DEBUG org.hibernate.service.internal.SessionFactoryServiceRegistryImpl - EventListenerRegistry access via ServiceRegistry is deprecated. Use sessionFactory.getEventEngine().getListenerRegistry() instead14:56:11.346 [main] DEBUG org.hibernate.service.internal.SessionFactoryServiceRegistryImpl - EventListenerRegistry access via ServiceRegistry is deprecated. Use sessionFactory.getEventEngine().getListenerRegistry() instead14:56:11.354 [main] DEBUG org.hibernate.internal.SessionFactoryImpl - Session factory constructed with filter configurations : {} 14:56:11.355 [main] DEBUG org.hibernate.internal.SessionFactoryImpl - Instantiating session factory with properties: {sun.desktop=windows, awt.toolkit=sun.awt.windows.WToolkit, hibernate.format_sql=true, java.specification.version=11, sun.cpu.isalist=amd64, sun.jnu.encoding=MS949, hibernate.dialect=org.hibernate.dialect.H2Dialect, java.class.path=D:\study\JAVA\SPRING\JPA\jpa_1st_class\target\classes;C:\Users\mukim\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.7.9\spring-boot-starter-web-2.7.9.jar;C:\Users\mukim\.m2\repository\org\springframework\boot\spring-boot-starter\2.7.9\spring-boot-starter-2.7.9.jar;C:\Users\mukim\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.7.9\spring-boot-starter-logging-2.7.9.jar;C:\Users\mukim\.m2\repository\ch\qos\logback\logback-classic\1.2.11\logback-classic-1.2.11.jar;C:\Users\mukim\.m2\repository\ch\qos\logback\logback-core\1.2.11\logback-core-1.2.11.jar;C:\Users\mukim\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.17.2\log4j-to-slf4j-2.17.2.jar;C:\Users\mukim\.m2\repository\org\apache\logging\log4j\log4j-api\2.17.2\log4j-api-2.17.2.jar;C:\Users\mukim\.m2\repository\org\slf4j\jul-to-slf4j\1.7.36\jul-to-slf4j-1.7.36.jar;C:\Users\mukim\.m2\repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;C:\Users\mukim\.m2\repository\org\yaml\snakeyaml\1.30\snakeyaml-1.30.jar;C:\Users\mukim\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.7.9\spring-boot-starter-json-2.7.9.jar;C:\Users\mukim\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.13.5\jackson-databind-2.13.5.jar;C:\Users\mukim\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.13.5\jackson-annotations-2.13.5.jar;C:\Users\mukim\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.13.5\jackson-core-2.13.5.jar;C:\Users\mukim\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.13.5\jackson-datatype-jdk8-2.13.5.jar;C:\Users\mukim\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.13.5\jackson-datatype-jsr310-2.13.5.jar;C:\Users\mukim\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.13.5\jackson-module-parameter-names-2.13.5.jar;C:\Users\mukim\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.7.9\spring-boot-starter-tomcat-2.7.9.jar;C:\Users\mukim\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.71\tomcat-embed-core-9.0.71.jar;C:\Users\mukim\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.71\tomcat-embed-el-9.0.71.jar;C:\Users\mukim\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.71\tomcat-embed-websocket-9.0.71.jar;C:\Users\mukim\.m2\repository\org\springframework\spring-web\5.3.25\spring-web-5.3.25.jar;C:\Users\mukim\.m2\repository\org\springframework\spring-beans\5.3.25\spring-beans-5.3.25.jar;C:\Users\mukim\.m2\repository\org\springframework\spring-webmvc\5.3.25\spring-webmvc-5.3.25.jar;C:\Users\mukim\.m2\repository\org\springframework\spring-aop\5.3.25\spring-aop-5.3.25.jar;C:\Users\mukim\.m2\repository\org\springframework\spring-context\5.3.25\spring-context-5.3.25.jar;C:\Users\mukim\.m2\repository\org\springframework\spring-expression\5.3.25\spring-expression-5.3.25.jar;C:\Users\mukim\.m2\repository\org\springframework\boot\spring-boot-devtools\2.7.9\spring-boot-devtools-2.7.9.jar;C:\Users\mukim\.m2\repository\org\springframework\boot\spring-boot\2.7.9\spring-boot-2.7.9.jar;C:\Users\mukim\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.7.9\spring-boot-autoconfigure-2.7.9.jar;C:\Users\mukim\.m2\repository\org\projectlombok\lombok\1.18.26\lombok-1.18.26.jar;C:\Users\mukim\.m2\repository\org\slf4j\slf4j-api\1.7.36\slf4j-api-1.7.36.jar;C:\Users\mukim\.m2\repository\jakarta\xml\bind\jakarta.xml.bind-api\2.3.3\jakarta.xml.bind-api-2.3.3.jar;C:\Users\mukim\.m2\repository\jakarta\activation\jakarta.activation-api\1.2.2\jakarta.activation-api-1.2.2.jar;C:\Users\mukim\.m2\repository\org\springframework\spring-core\5.3.25\spring-core-5.3.25.jar;C:\Users\mukim\.m2\repository\org\springframework\spring-jcl\5.3.25\spring-jcl-5.3.25.jar;C:\Users\mukim\.m2\repository\org\hibernate\hibernate-entitymanager\5.3.10.Final\hibernate-entitymanager-5.3.10.Final.jar;C:\Users\mukim\.m2\repository\org\jboss\logging\jboss-logging\3.4.3.Final\jboss-logging-3.4.3.Final.jar;C:\Users\mukim\.m2\repository\org\hibernate\hibernate-core\5.6.15.Final\hibernate-core-5.6.15.Final.jar;C:\Users\mukim\.m2\repository\antlr\antlr\2.7.7\antlr-2.7.7.jar;C:\Users\mukim\.m2\repository\org\jboss\jandex\2.4.2.Final\jandex-2.4.2.Final.jar;C:\Users\mukim\.m2\repository\com\fasterxml\classmate\1.5.1\classmate-1.5.1.jar;C:\Users\mukim\.m2\repository\javax\activation\javax.activation-api\1.2.0\javax.activation-api-1.2.0.jar;C:\Users\mukim\.m2\repository\javax\xml\bind\jaxb-api\2.3.1\jaxb-api-2.3.1.jar;C:\Users\mukim\.m2\repository\org\glassfish\jaxb\jaxb-runtime\2.3.8\jaxb-runtime-2.3.8.jar;C:\Users\mukim\.m2\repository\org\glassfish\jaxb\txw2\2.3.8\txw2-2.3.8.jar;C:\Users\mukim\.m2\repository\com\sun\istack\istack-commons-runtime\3.0.12\istack-commons-runtime-3.0.12.jar;C:\Users\mukim\.m2\repository\com\sun\activation\jakarta.activation\1.2.2\jakarta.activation-1.2.2.jar;C:\Users\mukim\.m2\repository\org\dom4j\dom4j\2.1.1\dom4j-2.1.1.jar;C:\Users\mukim\.m2\repository\org\hibernate\common\hibernate-commons-annotations\5.0.4.Final\hibernate-commons-annotations-5.0.4.Final.jar;C:\Users\mukim\.m2\repository\javax\persistence\javax.persistence-api\2.2\javax.persistence-api-2.2.jar;C:\Users\mukim\.m2\repository\net\bytebuddy\byte-buddy\1.12.23\byte-buddy-1.12.23.jar;C:\Users\mukim\.m2\repository\org\jboss\spec\javax\transaction\jboss-transaction-api_1.2_spec\1.1.1.Final\jboss-transaction-api_1.2_spec-1.1.1.Final.jar;C:\Users\mukim\.m2\repository\com\h2database\h2\1.4.199\h2-1.4.199.jar, java.vm.vendor=Oracle Corporation, sun.arch.data.model=64, user.variant=, java.vendor.url=https://openjdk.java.net/, user.timezone=Asia/Seoul, javax.persistence.jdbc.user=****, javax.persistence.jdbc.url=jdbc:h2:tcp://localhost/~/test, os.name=Windows 10, java.vm.specification.version=11, jakarta.persistence.jdbc.password=****, sun.java.launcher=SUN_STANDARD, user.country=KR, local.setting.IS_JTA_TXN_COORD=false, sun.boot.library.path=C:\Program Files\Java\jdk-11.0.16.1\bin, sun.java.command=hellojpa.JpaMain, hibernate.use_sql_comments=true, jdk.debug=release, jakarta.persistence.jdbc.driver=org.h2.Driver, sun.cpu.endian=little, user.home=C:\Users\mukim, user.language=ko, sun.stderr.encoding=ms949, java.specification.vendor=Oracle Corporation, java.version.date=2022-08-18, java.home=C:\Program Files\Java\jdk-11.0.16.1, file.separator=\, java.vm.compressedOopsMode=Zero based, jakarta.persistence.jdbc.user=****, line.separator=, sun.stdout.encoding=ms949, hibernate.persistenceUnitName=hello, java.specification.name=Java Platform API Specification, java.vm.specification.vendor=Oracle Corporation, hibernate.transaction.coordinator_class=class org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorBuilderImpl, java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment, javax.persistence.jdbc.driver=org.h2.Driver, user.script=, sun.management.compiler=HotSpot 64-Bit Tiered Compilers, java.runtime.version=11.0.16.1+1-LTS-1, user.name=mukim, path.separator=;, hibernate.connection.username=****, os.version=10.0, java.runtime.name=Java(TM) SE Runtime Environment, hibernate.connection.url=jdbc:h2:tcp://localhost/~/test, file.encoding=MS949, hibernate.ejb.persistenceUnitName=hello, java.vm.name=Java HotSpot(TM) 64-Bit Server VM, hibernate.show_sql=true, java.vendor.version=18.9, hibernate.connection.driver_class=org.h2.Driver, java.vendor.url.bug=https://bugreport.java.com/bugreport/, java.io.tmpdir=C:\Users\mukim\AppData\Local\Temp\, java.version=11.0.16.1, user.dir=D:\study\JAVA\SPRING\JPA\jpa_1st_class, os.arch=amd64, java.vm.specification.name=Java Virtual Machine Specification, java.awt.printerjob=sun.awt.windows.WPrinterJob, hibernate.connection.password=****, sun.os.patch.level=, jakarta.persistence.jdbc.url=jdbc:h2:tcp://localhost/~/test, hibernate.boot.CfgXmlAccessService.key=org.hibernate.boot.registry.StandardServiceRegistryBuilder$1@64030b91, java.library.path=C:\Program Files\Java\jdk-11.0.16.1\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files\Common Files\Oracle\Java\javapath;C:\Program Files\Java\jdk-11.0.16.1\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Microsoft SQL Server\150\DTS\Binn\;C:\Program Files\Azure Data Studio\bin;C:\Program Files (x86)\Microsoft SQL Server\160\Tools\Binn\;C:\Program Files\Microsoft SQL Server\160\Tools\Binn\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;C:\Program Files\Microsoft SQL Server\160\DTS\Binn\;C:\Program Files\Docker\Docker\resources\bin;C:\Program Files\TortoiseGit\bin;C:\Program Files\Git\cmd;C:\Program Files\Maven\apache-maven-3.9.0\bin;C:\Program Files\Gradle\gradle-7.6.1\bin;%SPRING_HOME%\bin;C:\Users\mukim\Anaconda3;C:\Users\mukim\Anaconda3\Library\mingw-w64\bin;C:\Users\mukim\Anaconda3\Library\usr\bin;C:\Users\mukim\Anaconda3\Library\bin;C:\Users\mukim\Anaconda3\Scripts;C:\Users\mukim\AppData\Local\Microsoft\WindowsApps;C:\Program Files\Azure Data Studio\bin;C:\Users\mukim\AppData\Local\Programs\Microsoft VS Code\bin;., java.vendor=Oracle Corporation, java.vm.info=mixed mode, java.vm.version=11.0.16.1+1-LTS-1, hibernate.bytecode.use_reflection_optimizer=false, sun.io.unicode.encoding=UnicodeLittle, javax.persistence.jdbc.password=****, java.class.version=55.0}14:56:11.381 [main] DEBUG org.hibernate.secure.spi.JaccIntegrator - Skipping JACC integration as it was not enabled14:56:11.384 [main] DEBUG org.hibernate.internal.SessionFactoryImpl - Instantiated session factory14:56:11.385 [main] DEBUG org.hibernate.type.spi.TypeConfiguration$Scope - Scoping TypeConfiguration [org.hibernate.type.spi.TypeConfiguration@1c25b8a7] to SessionFactoryImpl [org.hibernate.internal.SessionFactoryImpl@43effd89]14:56:11.431 [main] DEBUG org.hibernate.boot.internal.ClassLoaderAccessImpl - Not known whether passed class name [hellojpa.Member] is safe14:56:11.432 [main] DEBUG org.hibernate.boot.internal.ClassLoaderAccessImpl - No temp ClassLoader provided; using live ClassLoader for loading potentially unsafe class : hellojpa.Member14:56:11.548 [main] DEBUG org.hibernate.persister.entity.AbstractEntityPersister - Static SQL for entity: hellojpa.Member14:56:11.548 [main] DEBUG org.hibernate.persister.entity.AbstractEntityPersister - Version select: /* get version hellojpa.Member */ select id from Member where id =?14:56:11.549 [main] DEBUG org.hibernate.persister.entity.AbstractEntityPersister - Snapshot select: /* get current state hellojpa.Member */ select member_.id, member_.name as name2_0_ from Member member_ where member_.id=?14:56:11.549 [main] DEBUG org.hibernate.persister.entity.AbstractEntityPersister - Insert 0: /* insert hellojpa.Member */ insert into Member (name, id) values (?, ?)14:56:11.550 [main] DEBUG org.hibernate.persister.entity.AbstractEntityPersister - Update 0: /* update hellojpa.Member */ update Member set name=? where id=?14:56:11.550 [main] DEBUG org.hibernate.persister.entity.AbstractEntityPersister - Delete 0: /* delete hellojpa.Member */ delete from Member where id=?14:56:11.569 [main] DEBUG org.hibernate.loader.plan.build.internal.spaces.QuerySpacesImpl - Adding QuerySpace : uid = <gen:0> -> org.hibernate.loader.plan.build.internal.spaces.EntityQuerySpaceImpl@7342e05d]14:56:11.571 [main] DEBUG org.hibernate.persister.walking.spi.MetamodelGraphWalker - Visiting attribute path : name14:56:11.572 [main] DEBUG org.hibernate.loader.plan.build.internal.FetchStyleLoadPlanBuildingAssociationVisitationStrategy - Building LoadPlan...14:56:11.578 [main] DEBUG org.hibernate.loader.plan.exec.internal.LoadQueryJoinAndFetchProcessor - processing queryspace <gen:0>14:56:11.581 [main] DEBUG org.hibernate.loader.plan.build.spi.LoadPlanTreePrinter - LoadPlan(entity=hellojpa.Member) - Returns - EntityReturnImpl(entity=hellojpa.Member, querySpaceUid=<gen:0>, path=hellojpa.Member) - QuerySpaces - EntityQuerySpaceImpl(uid=<gen:0>, entity=hellojpa.Member) - SQL table alias mapping - member0_ - alias suffix - 0_ - suffixed key columns - {id1_0_0_}14:56:11.584 [main] DEBUG org.hibernate.loader.entity.plan.EntityLoader - Static select for entity hellojpa.Member [NONE]: select member0_.id as id1_0_0_, member0_.name as name2_0_0_ from Member member0_ where member0_.id=?14:56:11.603 [main] DEBUG org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator - No schema actions specified14:56:11.603 [main] DEBUG org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator - No actions specified; doing nothing 14:56:11.603 [main] DEBUG org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator - No JtaPlatform was specified, checking resolver14:56:11.604 [main] DEBUG org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformResolverInitiator - No JtaPlatformResolver was specified, using default [org.hibernate.engine.transaction.jta.platform.internal.StandardJtaPlatformResolver]14:56:11.607 [main] DEBUG org.hibernate.engine.transaction.jta.platform.internal.StandardJtaPlatformResolver - Could not resolve JtaPlatform, using default [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]14:56:11.608 [main] INFO org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator - HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]14:56:11.612 [main] DEBUG org.hibernate.service.internal.SessionFactoryServiceRegistryImpl - EventListenerRegistry access via ServiceRegistry is deprecated. Use sessionFactory.getEventEngine().getListenerRegistry() instead14:56:11.614 [main] DEBUG org.hibernate.hql.internal.QueryTranslatorFactoryInitiator - QueryTranslatorFactory: org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory@75de29c014:56:11.618 [main] DEBUG org.hibernate.query.spi.NamedQueryRepository - Checking 0 named HQL queries14:56:11.619 [main] DEBUG org.hibernate.query.spi.NamedQueryRepository - Checking 0 named SQL queries14:56:11.621 [main] DEBUG org.hibernate.internal.SessionFactoryRegistry - Initializing SessionFactoryRegistry : org.hibernate.internal.SessionFactoryRegistry@1305c12614:56:11.623 [main] DEBUG org.hibernate.internal.SessionFactoryRegistry - Registering SessionFactory: 65bb4780-5bf3-4330-a599-fb83c390a19d (<unnamed>)14:56:11.624 [main] DEBUG org.hibernate.internal.SessionFactoryRegistry - Not binding SessionFactory to JNDI, no JNDI name configured14:56:11.624 [main] INFO org.hibernate.orm.connections.pooling - HHH10001008: Cleaning up connection pool [jdbc:h2:tcp://localhost/~/test] 14:56:11.627 [main] DEBUG org.hibernate.service.spi.ServiceBinding - Overriding existing service binding [org.hibernate.engine.jdbc.connections.spi.ConnectionProvider]Exception in thread "main" java.lang.NoSuchMethodError: org.hibernate.annotations.common.reflection.ReflectionManager.reset()V at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:414) at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:471) at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1498) at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:56) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54) at hellojpa.JpaMain.main(JpaMain.java:10)    인텔리제이를 더이상 사용할 수 없게 되었고 VSCODE를 주로 사용해야하는 상황이라서 수업 내용을 VSCODE로 따라하고 있는데요 오류는 안뜨는거 같은데... 실행이 안되요... 메이븐 프로젝트를 실행하면 자꾸 디버그로 실행 되는거 같은데 그래서 그런건가요?  

 이게 정렬하지 않은 block요소(div)+기본값(row)상태로 body가 아래 튀어나와있고이게 column값을 줘서 정렬된 상태로 튀어나온 부분이 사라졌습니다. div가 block요소이고 정렬이 안된 row상태이니 위처럼 튀어나오는건 이해할 수 있습니다.그런데 column을 줘서 수직으로 정렬해도 튀어나오는건 그대로여야하지 않나요? 왜 튀어나온게 들어가는거죠?

안녕하세요 선생님. 먼저 좋은 강의 감사합니다.다름이 아니라 제가 GridSearchCV를 통해 랜덤 포레스트 코드를 실행하였는데 제가 첨부한 사진과 같은 오류가 나왔습니다.결과는 문제 없지 나왔지만 어떤 부분에 문제가 생겼는지 궁금하여 질문을 드립니다.제가 예상하기로는 선생님의 get_human_dataset()에서 y_train이 데이터 프레임 형식으로 추출이 되는데, 여기서는 시리즈 형태 혹은 ndarray 형태로 넣어야 되는 건지 추측을 해봅니다.감사합니다.

안녕하세요, 어제부터 본격적으로 잔재미 코딩님의 강의를 수강 중입니다.공부 중에 강의 자료가 있으면 혼자 복습하는데 좋을 것 같아서 요청드리고자 합니다. 이메일 : minhwa0819@naver.com 확인 감사합니다~

inspector 창에 다른 파라미터들?이 뜨게 하려면 어떻게 해야 하는지 알고싶습니다... 어떻게 이벤트를 생성해도 창이 뜨지 않아서 ㅠㅠ 넘어가질 못하고 있습니다

안녕하세요. 강의를 듣던 중 해결되지 않는 의문이 생겨 질문드립니다.강의에서 Principal 은 인터페이스이며 UserDetailsService에서 반환한 User 클래스가 구현체로 사용된다고 말씀해주셨는데 여기서 의문이 생겼습니다.확인해보니 Principal은 User 클래스의 인터페이스가 아닌 Authentication 의 구현체로 사용되는 UsernamePasswordAuthenticationToken 의 최상위 인터페이스였습니다.하지만 Authentication에서 User 객체를 받아오는 메서드의 이름도 getPrincipal() 입니다. 그렇다면, 위 그림에서 나타난 Principal 인터페이스와 User 객체를 반환하는 getPrincipal()의 principal은 서로 다른 의미로 쓰이는 건가요?디버깅을 해봐도 아래와 같이 Principal 인터페이스를 구현하는 XxxAuthenticaionToken 객체가 Authentication 타입으로 받아지고 User 객체는 그냥 Object 타입으로 받아져서 혼동이 되어 질문드립니다.

안녕하세요 dbeaver 에 mysql 연결해서 개인 프로젝트를 진행하고 있습니다.근데 데이터 총 개수가 300만개가 넘는데,,, 노트북이 감당할 수 있는 수준인지,, 궁금합니다또, 일반적으로 개인 프로젝트를 수행할 때 노트북이 감당할 수 있는 데이터 양은 어느정도인지 알고 계신분들 조언 부탁드려요!

application.properties 에logging.level.org.apache.coyote.http11=debug똑같이 했는데웹브라우저가 인코딩해서 보내질 않습니다.Received [GET /hello?username=Kim HTTP/1.1(헤더 정보 부분은 다 나옵니다) 코드를 보면Unused property 라고 뜹니다.구글링을해도 나오질않네요..답변주시면 정말 감사하겠습니다.

안녕하세요! 선생님 강의 잘 듣고 있습니다.다름이 아니라커넥트 내부 토픽이해 - connect0offsets, connect-status, connect-config 강의 실습 중spool 커넥터를 띄워놓고 spooldir csv 메세지 보내는 과정에서커넥터가 정상 작동을 안하는 것 같아이부분을 반복했더니 커넥트 기동중 spool 커넥터에 에러가 잡히는데 혹시 해결방안 여쭤봐도 될까요 ?  커넥트 기동시 뜨는 에러 로그입니다. path annotation 이 비었다고 하는 것같은데 새로 지정을 어디서 해야 할까요?org.apache.kafka.connect.errors.ConnectException: Failed to start connector: csv_spooldir_source at org.apache.kafka.connect.runtime.distributed.DistributedHerder.lambda$startConnector$25(DistributedHerder.java:1461) at org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:334) at org.apache.kafka.connect.runtime.WorkerConnector.doRun(WorkerConnector.java:140) at org.apache.kafka.connect.runtime.WorkerConnector.run(WorkerConnector.java:117) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: org.apache.kafka.connect.errors.ConnectException: Failed to transition connector csv_spooldir_source to state STARTED ... 8 more Caused by: java.lang.IllegalStateException: Could not find any input file(s) to infer schema from. at com.google.common.base.Preconditions.checkState(Preconditions.java:510) at com.github.jcustenborder.kafka.connect.spooldir.AbstractSpoolDirSourceConnector.start(AbstractSpoolDirSourceConnector.java:63) at org.apache.kafka.connect.runtime.WorkerConnector.doStart(WorkerConnector.java:184) at org.apache.kafka.connect.runtime.WorkerConnector.start(WorkerConnector.java:209) at org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:348) at org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:331) ... 7 more 3월 08, 2023 1:54:32 오후 org.glassfish.jersey.internal.Errors logErrors 경고: The following warnings have been detected: WARNING: The (sub)resource method listLoggers in org.apache.kafka.connect.runtime.rest.resources.LoggingResource contains empty path annotation. WARNING: The (sub)resource method createConnector in org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource contains empty path annotation. WARNING: The (sub)resource method listConnectors in org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource contains empty path annotation. WARNING: The (sub)resource method listConnectorPlugins in org.apache.kafka.connect.runtime.rest.resources.ConnectorPluginsResource contains empty path annotation. WARNING: The (sub)resource method serverInfo in org.apache.kafka.connect.runtime.rest.resources.RootResource contains empty path annotation. [2023-03-08 13:54:32,670] INFO Started o.e.j.s.ServletContextHandler@1e253c9d{/,null,AVAILABLE} (org.eclipse.jetty.server.handler.ContextHandler:915) [2023-03-08 13:54:32,671] INFO REST resources initialized; server is started and ready to handle requests (org.apache.kafka.connect.runtime.rest.RestServer:303) [2023-03-08 13:54:32,671] INFO Kafka Connect started (org.apache.kafka.connect.runtime.Connect:57) min@min-VirtualBox:~$ curl -X GET http://localhost:8083/connectors/csv_spooldir_source/status | jq '.' % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 1375 100 1375 0 0 8647 0 --:--:-- --:--:-- --:--:-- 8647 { "name": "csv_spooldir_source", "connector": { "state": "FAILED", "worker_id": "127.0.1.1:8083", "trace": "java.lang.IllegalStateException: Could not find any input file(s) to infer schema from.\n\tat com.google.common.base.Preconditions.checkState(Preconditions.java:510)\n\tat com.github.jcustenborder.kafka.connect.spooldir.AbstractSpoolDirSourceConnector.start(AbstractSpoolDirSourceConnector.java:63)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.doStart(WorkerConnector.java:184)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.start(WorkerConnector.java:209)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:348)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:331)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.doRun(WorkerConnector.java:140)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.run(WorkerConnector.java:117)\n\tat java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)\n\tat java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)\n\tat java.base/java.lang.Thread.run(Thread.java:829)\n" }, "tasks": [], "type": "source" }

 import {Bigframe, ResultWrapper, UserBox, UserInfo, Boundary } from "@/styles/emotion"; import { gql,useQuery } from "@apollo/client" import { useRouter } from "next/router" import{useState} from 'react' const FETCH_PRODUCT = gql` query fetchBoard($boardId: ID!){ fetchBoard(boardId:$boardId){ writer title contents createdAt } } ` export default function BulletinBoardFetch() { const router = useRouter() const[writer,setWriter]=useState("") const[creatDt,setCreatDt]=useState("") const{data}=useQuery(FETCH_PRODUCT,{ variables:{ boardId: router.query.qqq } }) console.log(data?.fetchBoard?.createdAt) setCreatDt(data?.fetchBoard?.createdAt) setWriter(data?.fetchBoard?.writer) return( <div> <Bigframe> <div> banner1 </div> <div> banner2 </div> <ResultWrapper> <UserBox> <img src="../../../public/userpic.png" alt=""/> <UserInfo> {/* <Writer>{writer}</Writer> <CreateDate>{createDt}</CreateDate> */} </UserInfo> <img src="../../../public/clip.png" alt=""/> <img src="../../../public/location.png" alt=""/> <Boundary></Boundary> </UserBox> </ResultWrapper> </Bigframe> </div> ) }너무 많이 루프했다고 뜹니다 ㅠㅠ

안녕하세요. 개발하다 궁금한 사항이 있어 질문드립니다.spring을 이용해 백엔드 서버를 구축하고 있는데 디바이스(안드로이드)와 http 통신, tcp/ip socket 통신 두가지를 모두 구현해야 합니다. 이럴 경우에는 java의 socket 관련 라이브러리를 사용해서 소켓 서버를 만들고 서블릿을 이용한 웹서버도 만들어 두 개를 동시에 실행시켜야 하는지 아니면 다른 방식으로 구현해야 하는지 문의드립니다.

학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요.1. 강의 내용과 관련된 질문을 남겨주세요.2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요.(자주 하는 질문 링크: https://bit.ly/3fX6ygx)3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요.(질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG)질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요.=========================================[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예/아니오)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오)3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오)[질문 내용]수업들으면 똑같이 따라하려 하는데 강사님께서 보는 화면의 이런 부분들은 어디에 나와 있는지 알수있을까요?? 사소산 질문이라 죄송합니다

n=4가 되었을 때이처럼 함수가 중첩된 상태라고 저는 이해했고, n=4가 되어 if문에 들어가지 않게 되자 원래 myfunc함수에서   if(n < 4)//stop condition my_func(n + 1); printf("Level %d, address of variable n = %p\n", n, &n);이 부분에 있는 myfunc때문에 이 밑에 있는 printf("Level %d, address of variable n = %p\n", n, &n); 가 4번 실행 못한 상태가 되었기 때문에 지금 기준 20, 21번 줄을 반복하면서(처음에 중첩되면서 못 돈 부분들을 돌고 있음) myfunc함수가 myfunc안에 없었다면 이런일도 없었겠지만 안에 있는 myfunc함수 때문에 출력이 못된 부분들이 마지막에 순차적으로 나오는 것이라고 이해하면 될까요? 

안녕하세요,Bridge 패턴에서 큐나 스택을 만들때 기능을 구현한 List를 상속하는데 상속받은 메소드를 써야하는거 아닌가요? 예를들어 add 나 remove 같은.public class Queue<T> extends List<T> { public Queue(AbstractList<T> list) { super(list); System.out.println("Queue"); } public void enQueue(T obj) { add(obj); } public T deQueue() { return remove(0); } }public class Stack<T> extends List<T> { public Stack(AbstractList<T> list) { super(list); System.out.println("Stack"); } public void push(T obj) { add(obj, 0); } public T pop() { return remove(0); } public T peek() { return get(0); } }

WebView 3버전까지는 오류 없이 잘 진행했는데4버전으로 변경시 에뮬레이터에 아래와 같은 오류가 발생합니다.구글링을 해보긴 했는데 잘 안되서 질문 남깁니다. 

선생님bitnami에서 WAMP를 다운받으려 하는데 아이콘을 아무리 찾아도 안나옵니다!서비스가 종료된 걸가요?

 import {Bigframe, ResultWrapper, UserBox, UserInfo, Boundary } from "@/styles/emotion"; import { gql,useQuery } from "@apollo/client" import { useRouter } from "next/router" import{useState} from 'react' const FETCH_PRODUCT = gql` query fetchBoard($boardId: ID!){ fetchBoard(boardId:$boardId){ writer title contents createdAt } } ` export default function BulletinBoardFetch() { const router = useRouter() const[writer,setWriter]=useState("") const[creatDt,setCreatDt]=useState("") console.log(router.query.qqq) const{data}=useQuery(FETCH_PRODUCT,{ variables:{ boardId: `${router.query.qqq}` } }) console.log(data) setCreatDt(data.fetchBoard.createdAt) setWriter(data.fetchBoard.writer) return( <div> <Bigframe> <div> banner1 </div> <div> banner2 </div> <ResultWrapper> <UserBox> <img src="../../../public/userpic.png" alt=""/> <UserInfo> <Writer>{writer}</Writer> <CreateDate>{createDt}</CreateDate> </UserInfo> <img src="../../../public/clip.png" alt=""/> <img src="../../../public/location.png" alt=""/> <Boundary></Boundary> </UserBox> </ResultWrapper> </Bigframe> </div> ) }뭐가 문제인걸까요...ㅠㅠ

 일부러 삭제하신 건가요?오랜만에 복습하러 왔는데 안보이네요

먼저, 강의 잘 듣고 있습니다 :)서브넷마스크 부분을 잘 듣고 이해했다고 생각했는데강의교안 1부 133p 퀴즈부분Q. 10개의 사무실이 있으며 사무실당 12개 장치를 연결한다면?에서`한 서브네트워크(서브넷)당 123.12.12.12/28로 16개의 네트워크를 확보해야.`이 부분 123.12.12.12는 어떻게 나온 숫자인지 궁금합니다.  

안녕하세요 김영한님 강의자료는 초반에 있는 한 페이지가 끝인가요?