Hi All.
Its my first Post here, and i dont speak english very well.
I have a Entity named Descarga wich have 4 attributes:
->idDescarga
->nome
->sigla
->intensidade
The entity Descarga is mapped by the descarga table. But the attribute intensidade is in another table, called descargaEvento wich is a association table.
So, when i save the entity Descarga i need to save the intensidade attribute into the descargaEvento table. Follows my entity Class and tables.

CREATE TABLE descarga (
idDescarga: int,
nome: Varchar(80),
sigla: Varchar(10),
primary_key(idDescarga)
)

CREATE TABLE descargaEvento(
evento_idEvento: int,
descarga_idDescarga: int,
intensidade: int,
foreign_key(evento_idEvento) references (evento.idEvento),
foreign_key(descarga_idDescarga) references (descarga.idDescarga),
primary_key(evento_idEvento, descarga_idDescarga)
)

And the Class Code bellow:

@Entity
@Table(name="descarga")
@SequenceGenerator(name="SEQ_DESCARGA" ,sequenceName = "\"descarga_idDescarga_seq\"", allocationSize = 1)
@SecondaryTable(name="\"descargaEvento\"", pkJoinColumns={
@PrimaryKeyJoinColumn(name="\"descarga_idDescarga\"", referencedColumnName="\"idDescarga\"")})
public class DescargaEvento implements Serializable{

private static final long serialVersionUID = 1L;
private int idDescarga;
private int intensidade;
private String nome;
private String sigla;

@Id
@Column(name = "\"idDescarga\"")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_DESCARGA")
public int getIdDescarga() {
return idDescarga;
}
public void setIdDescarga(int idDescarga) {
this.idDescarga = idDescarga;
}
public String getNome() {
return nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public String getSigla() {
return sigla;
}
public void setSigla(String sigla) {
this.sigla = sigla;
}
@Column(table="\"descargaEvento\"")
public int getIntensidade() {
return intensidade;
}
public void setIntensidade(int intensidade) {
this.intensidade = intensidade;
}

}

When i try to save this entity, i get the following error:

Caused by: org.hibernate.MappingException: Unable to find logical column name from physical name idEvento in table evento
at org.hibernate.cfg.Mappings.getLogicalColumnName(Mappings.java:514)
at org.hibernate.cfg.Ejb3JoinColumn.buildJoinColumn(Ejb3JoinColumn.java:211)
at org.hibernate.cfg.annotations.EntityBinder.createPrimaryColumnsToSecondaryTable(EntityBinder.java:471)
at org.hibernate.cfg.annotations.EntityBinder.finalSecondaryTableBinding(EntityBinder.java:440)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:770)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:498)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:277)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1286)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:915)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:805)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:745)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:134)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1143)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1110)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:431)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:254)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:144)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:251)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:163)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:362)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:900)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:815)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:427)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:273)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:163)


What is that exception, and how can i solve?
PS: Sorry about my poor english.
Thanks.[/code]

Why are you escaping all the quotes?
Try and remove \"