Aplicação não carrega dados do banco após inicialização do windows | Java e JSF I: Sua aplicação web com JSF2

Alberto,

infelizmente não aparece nenhum erro. Por exemplo, acabei de inicializar o tomcat e as mensagens do log foram:

05/06/2017 07:45:43 org.apache.tomcat.util.digester.SetPropertiesRule begin
AVISO: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:livraria' did not find a matching property.
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version:        Apache Tomcat/7.0.78
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built:          May 10 2017 15:02:19 UTC
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number:         7.0.78.0
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name:               Windows 7
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version:            6.1
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture:          amd64
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Java Home:             C:\AmbienteDesenvolvimentoPJeCSJT\pje\jdk_1.6-b43\jre
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version:           1.6.0_43-b01
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor:            Sun Microsystems Inc.
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE:         C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME:         C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:49855
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: 7.0
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: 7.0
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dwtp.deploy=C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: 7.0\wtpwebapps
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: 7.0\endorsed
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=Cp1252
05/06/2017 07:45:43 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Duser.home=C:\Users\wiler.coelho
05/06/2017 07:45:43 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\AmbienteDesenvolvimentoPJeCSJT\pje\jdk_1.6-b43\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\AmbienteDesenvolvimentoPJeCSJT\pje\jdk_1.6-b43\jre\bin;C:/Program Files/Java/jre1.8.0_121/bin/server;C:/Program Files/Java/jre1.8.0_121/bin;C:/Program Files/Java/jre1.8.0_121/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\oracle\product\11.2.0\client_64;C:\oracle\product\11.2.0\client_64\bin;C:\oracle\product\11.2.0\client_32;C:\oracle\product\11.2.0\client_32\bin;C:\orant\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\orant\jdk\bin;C:\Program Files\SafeNet\Authentication\SAC\x32;C:\Program Files\SafeNet\Authentication\SAC\x64;C:\Program Files (x86)\PuTTY\;C:\Program Files\MySQL\MySQL Utilities 1.6\;C:\AmbienteDesenvolvimentoPJeCSJT\pje\eclipse-jee-kepler-R-win32-x86_64-CSJT;;.
05/06/2017 07:45:43 org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
05/06/2017 07:45:43 org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
05/06/2017 07:45:43 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 506 ms
05/06/2017 07:45:43 org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
05/06/2017 07:45:43 org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.78
05/06/2017 07:45:44 org.apache.catalina.startup.TldConfig execute
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
05/06/2017 07:45:44 org.apache.tomcat.websocket.server.WsSci onStartup
INFO: JSR 356 WebSocket (Java WebSocket 1.1) support is not available when running on Java 6. To suppress this message, run Tomcat on Java 7, remove the WebSocket JARs from $CATALINA_HOME/lib or add the WebSocket JARs to the tomcat.util.scan.DefaultJarScanner.jarsToSkip property in $CATALINA_BASE/conf/catalina.properties. Note that the deprecated Tomcat 7 WebSocket API will be available. 
05/06/2017 07:45:44 com.sun.faces.config.ConfigureListener contextInitialized
INFO: Inicializando Mojarra 2.1.14 ( 20121023-1153) para o contexto '/livraria'
05/06/2017 07:45:45 com.sun.faces.spi.InjectionProviderFactory createInstance
INFO: JSF1048: Anotações PostConstruct/PreDestroy presentes.  Os métodos ManagedBeans marcados com essas anotações informarão as anotações processadas.
05/06/2017 07:45:45 org.hibernate.validator.internal.util.Version <clinit>
INFO: HV000001: Hibernate Validator 4.3.0.Final
05/06/2017 07:45:45 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\docs
05/06/2017 07:45:45 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\docs has finished in 41 ms
05/06/2017 07:45:45 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\manager
05/06/2017 07:45:45 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\manager has finished in 56 ms
05/06/2017 07:45:45 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\ROOT
05/06/2017 07:45:45 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\ROOT has finished in 40 ms
05/06/2017 07:45:45 org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
05/06/2017 07:45:45 org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
05/06/2017 07:45:45 org.apache.catalina.startup.Catalina start
INFO: Server startup in 1926 ms

Quando eu abro uma página no navegador, só é carregado o conteúdo HTML, mas nenhum dado é carregado, como se o banco estivesse vazio. Agora eu fui no menu Project => Clean, e após reinicializar o servidor, deu certo. As mensagens no console agora são:

05/06/2017 07:48:02 org.apache.tomcat.util.digester.SetPropertiesRule begin
AVISO: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:livraria' did not find a matching property.
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version:        Apache Tomcat/7.0.78
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built:          May 10 2017 15:02:19 UTC
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number:         7.0.78.0
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name:               Windows 7
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version:            6.1
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture:          amd64
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Java Home:             C:\AmbienteDesenvolvimentoPJeCSJT\pje\jdk_1.6-b43\jre
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version:           1.6.0_43-b01
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor:            Sun Microsystems Inc.
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE:         C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME:         C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:49976
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: 7.0
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: 7.0
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dwtp.deploy=C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: 7.0\wtpwebapps
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: 7.0\endorsed
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=Cp1252
05/06/2017 07:48:02 org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Duser.home=C:\Users\wiler.coelho
05/06/2017 07:48:02 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\AmbienteDesenvolvimentoPJeCSJT\pje\jdk_1.6-b43\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\AmbienteDesenvolvimentoPJeCSJT\pje\jdk_1.6-b43\jre\bin;C:/Program Files/Java/jre1.8.0_121/bin/server;C:/Program Files/Java/jre1.8.0_121/bin;C:/Program Files/Java/jre1.8.0_121/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\oracle\product\11.2.0\client_64;C:\oracle\product\11.2.0\client_64\bin;C:\oracle\product\11.2.0\client_32;C:\oracle\product\11.2.0\client_32\bin;C:\orant\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\orant\jdk\bin;C:\Program Files\SafeNet\Authentication\SAC\x32;C:\Program Files\SafeNet\Authentication\SAC\x64;C:\Program Files (x86)\PuTTY\;C:\Program Files\MySQL\MySQL Utilities 1.6\;C:\AmbienteDesenvolvimentoPJeCSJT\pje\eclipse-jee-kepler-R-win32-x86_64-CSJT;;.
05/06/2017 07:48:03 org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
05/06/2017 07:48:03 org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
05/06/2017 07:48:03 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 475 ms
05/06/2017 07:48:03 org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
05/06/2017 07:48:03 org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.78
05/06/2017 07:48:03 org.apache.catalina.startup.TldConfig execute
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
05/06/2017 07:48:03 org.apache.tomcat.websocket.server.WsSci onStartup
INFO: JSR 356 WebSocket (Java WebSocket 1.1) support is not available when running on Java 6. To suppress this message, run Tomcat on Java 7, remove the WebSocket JARs from $CATALINA_HOME/lib or add the WebSocket JARs to the tomcat.util.scan.DefaultJarScanner.jarsToSkip property in $CATALINA_BASE/conf/catalina.properties. Note that the deprecated Tomcat 7 WebSocket API will be available. 
05/06/2017 07:48:04 com.sun.faces.config.ConfigureListener contextInitialized
INFO: Inicializando Mojarra 2.1.14 ( 20121023-1153) para o contexto '/livraria'
05/06/2017 07:48:04 com.sun.faces.spi.InjectionProviderFactory createInstance
INFO: JSF1048: Anotações PostConstruct/PreDestroy presentes.  Os métodos ManagedBeans marcados com essas anotações informarão as anotações processadas.
05/06/2017 07:48:04 org.hibernate.validator.internal.util.Version <clinit>
INFO: HV000001: Hibernate Validator 4.3.0.Final
05/06/2017 07:48:04 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\docs
05/06/2017 07:48:04 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\docs has finished in 41 ms
05/06/2017 07:48:04 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\manager
05/06/2017 07:48:04 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\manager has finished in 58 ms
05/06/2017 07:48:04 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\ROOT
05/06/2017 07:48:04 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory C:\AmbienteDesenvolvimentoPJeCSJT\pje\Tomcat 7.0\webapps\ROOT has finished in 37 ms
05/06/2017 07:48:04 org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
05/06/2017 07:48:04 org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
05/06/2017 07:48:04 org.apache.catalina.startup.Catalina start
INFO: Server startup in 1926 ms
05/06/2017 07:48:11 org.hibernate.annotations.common.Version <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}
05/06/2017 07:48:11 org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.1.8.Final}
05/06/2017 07:48:11 org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
05/06/2017 07:48:11 org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
05/06/2017 07:48:11 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)
05/06/2017 07:48:11 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20
05/06/2017 07:48:11 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000006: Autocommit mode: true
05/06/2017 07:48:11 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost/livrariadb]
05/06/2017 07:48:11 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000046: Connection properties: {user=root, autocommit=true, release_mode=auto}
05/06/2017 07:48:12 org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQL5InnoDBDialect
05/06/2017 07:48:12 org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000268: Transaction strategy: org.hibernate.engine.transaction.internal.jdbc.JdbcTransactionFactory
05/06/2017 07:48:12 org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>
INFO: HHH000397: Using ASTQueryTranslatorFactory
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000228: Running hbm2ddl schema update
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000102: Fetching database metadata
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000396: Updating schema
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000261: Table found: livrariadb.autor
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000037: Columns: [id, nome]
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000108: Foreign keys: []
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000126: Indexes: [primary]
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000261: Table found: livrariadb.livro
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000037: Columns: [id, titulo, preco, isbn, datalancamento]
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000108: Foreign keys: []
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000126: Indexes: [primary]
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000261: Table found: livrariadb.livro_autor
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000037: Columns: [autores_id, livro_id]
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000108: Foreign keys: [fk9590997afa17418, fk9590997ad70c7e4a]
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
INFO: HHH000126: Indexes: [fk9590997afa17418, fk9590997ad70c7e4a]
05/06/2017 07:48:12 org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000232: Schema update complete
Hibernate: select autor0_.id as id1_, autor0_.nome as nome1_ from Autor autor0_
Hibernate: select livro0_.id as id0_, livro0_.dataLancamento as dataLanc2_0_, livro0_.isbn as isbn0_, livro0_.preco as preco0_, livro0_.titulo as titulo0_ from Livro livro0_
Hibernate: select livro0_.id as id0_, livro0_.dataLancamento as dataLanc2_0_, livro0_.isbn as isbn0_, livro0_.preco as preco0_, livro0_.titulo as titulo0_ from Livro livro0_
Hibernate: select livro0_.id as id0_, livro0_.dataLancamento as dataLanc2_0_, livro0_.isbn as isbn0_, livro0_.preco as preco0_, livro0_.titulo as titulo0_ from Livro livro0_

Chegou a hora de transformar