java.lang.reflect.InvocationTargetException

[shawn peter]

I have created a Spring Boot application. Below is my pom.xml file.

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>klaver-core-rest-api</groupId>
	<artifactId>klaver-core-sheduler</artifactId>
	<version>0.0.1-SNAPSHOT</version>

	<name>klaver-core-sheduler</name>
	<!-- FIXME change it to the project's website -->
	<url>http://www.example.com</url>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.1.RELEASE</version>
	</parent>


	<dependencies>

		
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
			
		</dependency>


		<dependency>
			<groupId>sheduler.core.model</groupId>
			<artifactId>sheduler-core-model</artifactId>
			<version>1-SNAPSHOT</version>
		</dependency>




		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
		</dependency>

		


		<dependency>
			<groupId>org.postgresql</groupId>
			<artifactId>postgresql</artifactId>
			<version>42.0.0</version>
		</dependency>

		

		
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<configuration>
					<executable>true</executable>
					<mainClass>io.klaver.rest.RestAPIApp</mainClass>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

Below is yaml file.

server:
  port: 11002
    
logging:
  file: logs/klaver-core-api.log
  pattern:
    console: "%d %-5level %logger : %msg%n"
    file: "%d %-5level [%thread] %logger : %msg%n"
  level:
    org.springframework.web: INFO
    guru.springframework.controllers: INFO    
    org.hibernate.type: TRACE
    org.hibernate.type.descriptor.sql: TRACE




spring:
  datasource:
    url: jdbc:postgresql://localhost:5432/postgres_local
    driverClassName: org.postgresql.Driver
    username: postgres
    password: postgres

  jpa:
    hibernate:
      ddl-auto: create        
#     ddl-auto:update
#     ddl-auto: create
      show_sql: true
      

Seems everything ok, but when i run the project it is not creating the table "Leave in the Database.
I have Leave Entity in model project which is added in the pom.xml. Below is the Leave Entity class.

package sheduler.core.model;

import java.sql.Timestamp;
import java.util.Calendar;
import java.util.UUID;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

import org.hibernate.annotations.GenericGenerator;

@Entity
@Table(name ="leave")
public class Leave {
	
	
	public Leave(){
		Calendar calendar = Calendar.getInstance();
		java.util.Date now = calendar.getTime();
		timeCreated = new java.sql.Timestamp(now.getTime());
	}
	
	@Id
    @GenericGenerator(name = "uuid2", strategy = "uuid2")
    @GeneratedValue(generator = "uuid2")
    @Column(name = "id", nullable = false, unique = true, updatable = false)
	private UUID id;
	
	@Column(name = "time_created", nullable = false)
	private Timestamp timeCreated;
	
	
	

}

Below is the logs when i run the project.

[shawn peter]

Below is the logs when applications runs

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.5.1.RELEASE)

2
2018-12-25 13:44:20,938 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Object -> org.hibernate.type.ObjectType@18f55704
2018-12-25 13:44:20,938 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration imm_date -> org.hibernate.type.AdaptedImmutableType@6add8e3f
2018-12-25 13:44:20,938 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration imm_time -> org.hibernate.type.AdaptedImmutableType@58a2b917
2018-12-25 13:44:20,938 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration imm_timestamp -> org.hibernate.type.AdaptedImmutableType@48904d5a
2018-12-25 13:44:20,938 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration imm_dbtimestamp -> org.hibernate.type.AdaptedImmutableType@12bbfc54
2018-12-25 13:44:20,938 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration imm_calendar -> org.hibernate.type.AdaptedImmutableType@1491344a
2018-12-25 13:44:20,938 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration imm_calendar_date -> org.hibernate.type.AdaptedImmutableType@59b65dce
2018-12-25 13:44:20,938 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration imm_binary -> org.hibernate.type.AdaptedImmutableType@1386313f
2018-12-25 13:44:20,938 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration imm_serializable -> org.hibernate.type.AdaptedImmutableType@5e922647
2018-12-25 13:44:20,975 INFO  org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
[b]2018-12-25 13:44:21,173 INFO  org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl : HHH000424: Disabling contextual LOB creation as createClob() method threw error : java.lang.reflect.InvocationTargetException[/b]
2018-12-25 13:44:21,175 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration pg-uuid -> org.hibernate.type.PostgresUUIDType@2c7db926
2018-12-25 13:44:21,175 DEBUG org.hibernate.type.BasicTypeRegistry : Adding type registration java.util.UUID -> org.hibernate.type.PostgresUUIDType@2c7db926
2018-12-25 13:44:21,175 INFO  org.hibernate.type.BasicTypeRegistry : HHH000270: Type registration [java.util.UUID] overrides previous : org.hibernate.type.UUIDBinaryType@6f76c2cc
2018-12-25 13:44:21,370 TRACE org.hibernate.type.TypeFactory : Scoping types to session factory org.hibernate.internal.SessionFactoryImpl@1ff15a50
2018-12-25 13:44:21,430 INFO  org.hibernate.tool.hbm2ddl.SchemaExport : HHH000227: Running hbm2ddl schema export
2018-12-25 13:44:21,432 INFO  org.hibernate.tool.hbm2ddl.SchemaExport : HHH000230: Schema export complete
2018-12-25 13:44:21,477 INFO  org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2018-12-25 13:44:21,992 INFO  org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@3bd82cf5: startup date [Tue Dec 25 13:44:16 NZDT 2018]; root of context hierarchy
2018-12-25 13:44:22,130 INFO  org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2018-12-25 13:44:22,132 INFO  org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-12-25 13:44:22,175 INFO  org.springframework.web.servlet.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-12-25 13:44:22,175 INFO  org.springframework.web.servlet.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-12-25 13:44:22,226 INFO  org.springframework.web.servlet.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-12-25 13:44:23,028 INFO  org.apache.camel.impl.converter.DefaultTypeConverter : Loaded 202 type converters
2018-12-25 13:44:24,135 INFO  org.springframework.jmx.export.annotation.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-12-25 13:44:24,152 INFO  org.springframework.context.support.DefaultLifecycleProcessor : Starting beans in phase 2147483647
2018-12-25 13:44:24,163 INFO  org.apache.camel.spring.boot.RoutesCollector : Loading additional Camel XML routes from: classpath:camel/*.xml
2018-12-25 13:44:24,164 INFO  org.apache.camel.spring.boot.RoutesCollector : Loading additional Camel XML rests from: classpath:camel-rest/*.xml
2018-12-25 13:44:24,167 INFO  org.apache.camel.spring.SpringCamelContext : Apache Camel 2.18.1 (CamelContext: camel-1) is starting
2018-12-25 13:44:24,169 INFO  org.apache.camel.management.ManagedManagementStrategy : JMX is enabled
2018-12-25 13:44:24,308 INFO  org.apache.camel.impl.DefaultRuntimeEndpointRegistry : Runtime endpoint registry is in extended mode gathering usage statistics of all incoming and outgoing endpoints (cache limit: 1000)
2018-12-25 13:44:24,309 INFO  org.apache.camel.spring.SpringCamelContext : StreamCaching is not in use. If using streams then its recommended to enable stream caching. See more details at http://camel.apache.org/stream-caching.html
2018-12-25 13:44:24,310 INFO  org.apache.camel.spring.SpringCamelContext : Total 0 routes, of which 0 are started.
2018-12-25 13:44:24,311 INFO  org.apache.camel.spring.SpringCamelContext : Apache Camel 2.18.1 (CamelContext: camel-1) started in 0.145 seconds
2018-12-25 13:44:24,372 INFO  org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer : Tomcat started on port(s): 11002 (http)
2018-12-25 13:44:24,378 INFO  klaver_core_rest_api.RestAPIApp : Started RestAPIApp in 9.02 seconds (JVM running for 9.517)

[Tim Holloway]

That's in an INFO-level log message. I think it simply means that the hibernate subsystem tested for a feature not available in your specific environment and wants you to know that it adopted an alternative strategy.

I wouldn't worry about it unless something more severe shows up.

It's possible that you could customize your configuration to tell it not to bother testing (and therefore not get the message), but if you're like most of us, you've probably got so much else to do it isn't worth the time and trouble.