通用域名格式。太阳杰迪。调用“new Configuration（）.configure（）.buildSessionFactory（）中的方法时发生调用异常”

Question

当我尝试build dSessionFactory时，我看到的是NullPointerExctive。但是，在Eclipse的调试模式中单击异常对象时，我看到的消息是com.sun.jdi.InvocationExctive发生了调用方法。

只有在引入了一个新的Entity类后，我才会看到这种行为。类绑定到的表存在。没有错别字。hibernate.cfg.xml也被成功解析。Hibernate尝试将新类绑定到表后，会引发一个致命的异常。

1. 冬眠。cfg。xml

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
  <session-factory>
    <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
    <property name="hibernate.connection.url">jdbc:oracle:thin:@lvsspldb06.qa.xxxx.com:1556:ICMDBTST</property>
    <property name="hibernate.connection.username">ICMAPP</property>
    <property name="hibernate.connection.password">ICMAPP</property>
    <property name="show_sql">true</property>
    <mapping class="com.xxxx.top.entity.Release"></mapping>
    <mapping class="com.xxxx.top.entity.Package"></mapping>
    <mapping class="com.xxxx.top.entity.Top"></mapping>
    <mapping class="com.xxxx.top.entity.PortAssignment"></mapping>
  </session-factory>
</hibernate-configuration>

desc package_portassignment 给出一个输出。这就证实了这个表的存在。

控制台日志

. . .
22:03:02.239 [main] DEBUG org.hibernate.cfg.Configuration - Session-factory config [null] named class [com.xxxx.top.entity.Release] for mapping
22:03:03.031 [main] DEBUG org.hibernate.cfg.Configuration - Session-factory config [null] named class [com.xxxx.top.entity.Package] for mapping
22:03:03.589 [main] DEBUG org.hibernate.cfg.Configuration - Session-factory config [null] named class [com.xxxx.top.entity.Top] for mapping
22:03:04.076 [main] DEBUG org.hibernate.cfg.Configuration - Session-factory config [null] named class [com.xxxx.top.entity.PortAssignment] for mapping
22:03:04.080 [main] INFO  org.hibernate.cfg.Configuration - HHH000041: Configured SessionFactory: null
. . .
22:03:13.287 [main] DEBUG org.hibernate.cfg.Configuration - Processing hbm.xml files
22:03:13.287 [main] DEBUG org.hibernate.cfg.Configuration - Process annotated classes
22:03:13.305 [main] DEBUG org.hibernate.cfg.AnnotationBinder - Binding entity from annotated class: com.xxxx.top.entity.Release
22:03:13.415 [main] DEBUG org.hibernate.cfg.Ejb3Column - Binding column: Ejb3DiscriminatorColumn{logicalColumnName'DTYPE', discriminatorTypeName='string'}
22:03:13.422 [main] DEBUG org.hibernate.cfg.AnnotationBinder - No value specified for 'javax.persistence.sharedCache.mode'; using UNSPECIFIED
22:03:13.450 [main] DEBUG o.h.cfg.annotations.EntityBinder - Import with entity name Release
22:03:13.470 [main] DEBUG o.h.cfg.annotations.EntityBinder - Bind entity com.xxxx.top.entity.Release on table release_release
22:03:13.567 [main] DEBUG org.hibernate.cfg.Ejb3Column - Binding column: Ejb3Column{table=org.hibernate.mapping.Table(release_release), mappingColumn=id, 
. . .
22:03:13.646 [main] DEBUG org.hibernate.cfg.Ejb3Column - Binding column: Ejb3DiscriminatorColumn{logicalColumnName'DTYPE', discriminatorTypeName='string'}
22:03:13.646 [main] DEBUG org.hibernate.cfg.AnnotationBinder - No value specified for 'javax.persistence.sharedCache.mode'; using UNSPECIFIED
22:03:13.646 [main] DEBUG o.h.cfg.annotations.EntityBinder - Import with entity name Package
22:03:13.647 [main] DEBUG o.h.cfg.annotations.EntityBinder - Bind entity com.xxxx.top.entity.Package on table package_package
. . .
22:03:13.699 [main] DEBUG org.hibernate.cfg.AnnotationBinder - No value specified for 'javax.persistence.sharedCache.mode'; using UNSPECIFIED
22:03:13.699 [main] DEBUG o.h.cfg.annotations.EntityBinder - Import with entity name Top
22:03:13.700 [main] DEBUG o.h.cfg.annotations.EntityBinder - Bind entity com.xxxx.top.entity.Top on table top_top
22:03:13.710 [main] DEBUG org.hibernate.cfg.Ejb3Column - Binding column: Ejb3Column{table=org.hibernate.mapping.Table(top_top), mappingColumn=id, insertable=true, updatable=true, unique=true}
. . .
22:03:13.719 [main] DEBUG org.hibernate.cfg.AnnotationBinder - No value specified for 'javax.persistence.sharedCache.mode'; using UNSPECIFIED
22:03:13.719 [main] DEBUG o.h.cfg.annotations.EntityBinder - Import with entity name PortAssignment
22:03:13.719 [main] DEBUG o.h.cfg.annotations.EntityBinder - Bind entity com.xxxx.top.entity.PortAssignment on table package_portassignment
FATAL exception is thrown here

PortAssignment.java.无法在这个问题中发布，因为stackoverflow的格式让我很难过。




Answer 1

我重写了新类，错误消失了。我承认，我很尴尬，但我认为属性之一的注释列（name=...）中有一个打字错误。

我想这在Hibernate的一个内部类（特别是org.Hibernate.annotations.common.reflection.XClass.getDeclaredProperties）中导致了NullPointerException）。

感谢Channa Jayamuni的想法。