Can't map to target entity property

[sam White]

Hi,

With Jboss71, Hibernate 3, when I deploy a ejb module, jboss can't map my user-defined class to a target entity property.

Here is the error:

09:10:06,739 INFO [org.jboss.ws.common.management.DefaultEndpointRegistry] (MSC service thread 1-8) register: jboss.ws:context=category6-ws-web,endpoint=CategorySubcategoriesServiceImpl
09:10:06,740 INFO [org.jboss.ws.common.management.DefaultEndpointRegistry] (MSC service thread 1-8) register: jboss.ws:context=category6-ws-web,endpoint=CategoryImagesServiceImpl
09:10:06,759 INFO [org.jboss.jpa] (MSC service thread 1-1) JBAS011402: Starting Persistence Unit Service 'category6-ws-ear.ear/category6-ws-ejb.jar#HousewareCategoryPU'
09:10:06,839 INFO [org.hibernate.annotations.common.Version] (MSC service thread 1-1) HCANN000001: Hibernate Commons Annotations {4.0.0.CR2}
09:10:06,842 INFO [org.hibernate.Version] (MSC service thread 1-1) HHH00412:Hibernate Core {4.0.0.CR2}
09:10:06,843 INFO [org.hibernate.cfg.Environment] (MSC service thread 1-1) HHH00206:hibernate.properties not found
09:10:06,846 INFO [org.hibernate.cfg.Environment] (MSC service thread 1-1) HHH00021:Bytecode provider name : javassist
09:10:06,858 INFO [org.hibernate.ejb.Ejb3Configuration] (MSC service thread 1-1) HHH00204:Processing PersistenceUnitInfo [
name: HousewareCategoryPU
...]
09:10:06,897 INFO [org.apache.cxf.service.factory.ReflectionServiceFactoryBean] (MSC service thread 1-8) Creating Service {http://service.category.houseware.ix/}CategorySubcategoriesServiceImplService from class ix.houseware.category.service.CategorySubcategoriesService
09:10:06,977 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC00001: Failed to start service jboss.persistenceunit."category6-ws-ear.ear/category6-ws-ejb.jar#HousewareCategoryPU": org.jboss.msc.service.StartException in service jboss.persistenceunit."category6-ws-ear.ear/category6-ws-ejb.jar#HousewareCategoryPU": Failed to start service
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1780) [jboss-msc-1.0.1.GA.jar:1.0.1.GA]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) [:1.6.0_07]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) [:1.6.0_07]
at java.lang.Thread.run(Thread.java:619) [:1.6.0_07]
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: HousewareCategoryPU] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:908)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:884)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:145)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.start(PersistenceUnitServiceImpl.java:78)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1824) [jboss-msc-1.0.1.GA.jar:1.0.1.GA]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1759) [jboss-msc-1.0.1.GA.jar:1.0.1.GA]
... 3 more
Caused by: org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: ix.houseware.category.entity.CategoryImages.categorySubcategories in ix.houseware.category.entity.CategorySubcategories.categoryImagesCollection
at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:665)
at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:625)
at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:65)
at org.hibernate.cfg.Configuration.originalSecondPassCompile(Configuration.java:1573)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1346)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1711)
at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:76)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:899)
... 9 more

CategoryImages.java class:

@Entity
@Table(name = "category_images", catalog = "houseware", schema = "")
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "CategoryImages.findAll", query = "SELECT c FROM CategoryImages c"),
    @NamedQuery(name = "CategoryImages.findByImageId", query = "SELECT c FROM CategoryImages c WHERE c.imageId = :imageId"),
    @NamedQuery(name = "CategoryImages.findByImageTitle", query = "SELECT c FROM CategoryImages c WHERE c.imageTitle = :imageTitle"),
    @NamedQuery(name = "CategoryImages.findByImageType", query = "SELECT c FROM CategoryImages c WHERE c.imageType = :imageType")})
public class CategoryImages implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @Basic(optional = false)
    @NotNull
    @Column(name = "image_id", nullable = false)
    private Integer imageId;
    @Size(max = 64)
    @Column(name = "image_title", length = 64)
    private String imageTitle;
    @Size(max = 5)
    @Column(name = "image_type", length = 5)
    private String imageType;
    @Lob
    @Column(name = "image_data")
    private byte[] imageData;
    @Id
    @JoinColumn(name = "category_id", referencedColumnName = "category_id", nullable = false)
    @ManyToOne(optional = false)
    private CategorySubcategories categoryId;
 
 
    public CategoryImages() {
    }
 
 
    public CategoryImages(Integer imageId) {
        this.imageId = imageId;
    }
 
 
    public Integer getImageId() {
        return imageId;
    }
 
 
    public void setImageId(Integer imageId) {
        this.imageId = imageId;
    }
 
 
    public String getImageTitle() {
        return imageTitle;
    }
 
 
    public void setImageTitle(String imageTitle) {
        this.imageTitle = imageTitle;
    }
 
 
    public String getImageType() {
        return imageType;
    }
 
 
    public void setImageType(String imageType) {
        this.imageType = imageType;
    }
 
 
    public byte[] getImageData() {
        return imageData;
    }
 
 
    public void setImageData(byte[] imageData) {
        this.imageData = imageData;
    }
 
 
    public CategorySubcategories getCategoryId() {
        return categoryId;
    }
 
 
    public void setCategoryId(CategorySubcategories categoryId) {
        this.categoryId = categoryId;
    }

CategorySubcategories.java class:

@Entity
@Table(name = "category_subcategories", catalog = "houseware", schema = "")
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "CategorySubcategories.findAll", query = "SELECT c FROM CategorySubcategories c"),
    @NamedQuery(name = "CategorySubcategories.findByCategoryId", query = "SELECT c FROM CategorySubcategories c WHERE c.categoryId = :categoryId"),
    @NamedQuery(name = "CategorySubcategories.findByCategoryName", query = "SELECT c FROM CategorySubcategories c WHERE c.categoryName = :categoryName"),
    @NamedQuery(name = "CategorySubcategories.findByLft", query = "SELECT c FROM CategorySubcategories c WHERE c.lft = :lft"),
    @NamedQuery(name = "CategorySubcategories.findByRgt", query = "SELECT c FROM CategorySubcategories c WHERE c.rgt = :rgt"),
    @NamedQuery(name = "CategorySubcategories.findImmediateParentByChild", query =
         "SELECT parent FROM CategorySubcategories node, CategorySubcategories parent " +
         "WHERE node.lft >  parent.lft AND node.lft < parent.rgt AND node.categoryName = :childNode ORDER BY parent.lft desc"),
    @NamedQuery(name = "CategorySubcategories.findByCategoryNamePaging", query = "SELECT c FROM CategorySubcategories c WHERE c.categoryName LIKE :categoryName ORDER BY c.lft")
})
public class CategorySubcategories implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @Basic(optional = false)
    @Column(name = "category_id")
    private Integer categoryId;
    @Column(name = "category_name")
    private String categoryName;
    @Column(name = "lft")
    private Integer lft;
    @Column(name = "rgt")
    private Integer rgt;
    @Lob
    @Column(name = "category_desc")
    private String categoryDesc;
    @OneToMany(cascade = CascadeType.ALL, mappedBy = "categorySubcategories")
    private Collection<CategoryImages> categoryImagesCollection;
 
 
    public CategorySubcategories() {
    }
 
 
    public CategorySubcategories(Integer categoryId) {
        this.categoryId = categoryId;
    }
 
 
    public Integer getCategoryId() {
        return categoryId;
    }
 
 
    public void setCategoryId(Integer categoryId) {
        this.categoryId = categoryId;
    }
 
 
    public String getCategoryName() {
        return categoryName;
    }
 
 
    public void setCategoryName(String categoryName) {
        this.categoryName = categoryName;
    }
 
 
    public Integer getLft() {
        return lft;
    }
 
 
    public void setLft(Integer lft) {
        this.lft = lft;
    }
 
 
    public Integer getRgt() {
        return rgt;
    }
 
 
    public void setRgt(Integer rgt) {
        this.rgt = rgt;
    }
 
 
    public String getCategoryDesc() {
        return categoryDesc;
    }
 
 
    public void setCategoryDesc(String categoryDesc) {
        this.categoryDesc = categoryDesc;
    }
 
 
    @XmlTransient
    public Collection<CategoryImages> getCategoryImagesCollection() {
        return categoryImagesCollection;
    }
 
 
    public void setCategoryImagesCollection(Collection<CategoryImages> categoryImagesCollection) {
        this.categoryImagesCollection = categoryImagesCollection;
    }

Any suggestion is very appreciated.
Thanks
Sam

[Hebert Coelho]

Change:
@OneToMany(cascade = CascadeType.ALL, mappedBy = "categorySubcategories")
private Collection<CategoryImages> categoryImagesCollection;

To:
@OneToMany(cascade = CascadeType.ALL, mappedBy = "categoryId")
private Collection<CategoryImages> categoryImagesCollection;

[sam White]

Hebert Coelho wrote:Change:
@OneToMany(cascade = CascadeType.ALL, mappedBy = "categorySubcategories")
private Collection<CategoryImages> categoryImagesCollection;

To:
@OneToMany(cascade = CascadeType.ALL, mappedBy = "categoryId")
private Collection<CategoryImages> categoryImagesCollection;

Hi, thank you for the suggestion.
After changed it to categoryId, it thrown a different exception, error shown as below:

20:06:07,048 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2)
20:06:07,048 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2)
20:06:07,048 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) CategoryImagesServiceImpl Hello count()...
20:06:07,065 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) ****calling AbstractFacade().....**********
20:06:07,144 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) Hibernate:
20:06:07,144 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) select
20:06:07,144 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) count((categoryim0_.image_id,
20:06:07,145 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) categoryim0_.category_id)) as col_0_0_
20:06:07,145 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) from
20:06:07,145 INFO [stdout] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) houseware.category_images categoryim0_ limit ?
20:06:07,163 WARN [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) SQL Error: 1241, SQLState: 21000
20:06:07,163 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) Operand should contain 1 column(s)
20:06:07,166 INFO [org.hibernate.engine.jdbc.internal.LogicalConnectionImpl] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) HHH00106:Forcing container resource cleanup on transaction completion
20:06:07,167 ERROR [org.jboss.ws.common.invocation.InvocationHandlerJAXWS] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) Method invocation failed with exception: null: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_07]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_07]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_07]
at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_07]
at org.jboss.ws.common.invocation.AbstractInvocationHandlerJSE.invoke(AbstractInvocationHandlerJSE.java:111)
at org.jboss.wsf.stack.cxf.JBossWSInvoker._invokeInternal(JBossWSInvoker.java:169)
at org.jboss.wsf.stack.cxf.JBossWSInvoker.invoke(JBossWSInvoker.java:117)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) [:1.6.0_07]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [:1.6.0_07]
at java.util.concurrent.FutureTask.run(FutureTask.java:138) [:1.6.0_07]
at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:106)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)
at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:118)
at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:208)
at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:91)
at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:167)
at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:87)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:184)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:135)
at org.jboss.wsf.spi.deployment.WSFServlet.service(WSFServlet.java:140) [jbossws-spi-2.0.0.Beta10.jar:2.0.0.Beta10]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:49) [jboss-as-jpa-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:144) [jboss-as-web-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:670) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at java.lang.Thread.run(Thread.java:619) [:1.6.0_07]
Caused by: java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.DataException: Operand should contain 1 column(s)
at ix.houseware.category.service.CategoryImagesServiceImpl.count(CategoryImagesServiceImpl.java:31) [classes:]
... 39 more
20:06:07,172 WARNING [org.apache.cxf.phase.PhaseInterceptorChain] (http-portal.ixsystems.com.au-192.168.1.20-8080-2) Application {http://service.category.houseware.ix/}CategoryImagesServiceImplService#{http://service.category.houseware.ix/}count has thrown exception, unwinding now: org.apache.cxf.interceptor.Fault: javax.persistence.PersistenceException: org.hibernate.exception.DataException: Operand should contain 1 column(s)
at org.jboss.wsf.stack.cxf.JBossWSInvoker.createFault(JBossWSInvoker.java:234)
at org.jboss.wsf.stack.cxf.JBossWSInvoker._invokeInternal(JBossWSInvoker.java:189)
at org.jboss.wsf.stack.cxf.JBossWSInvoker.invoke(JBossWSInvoker.java:117)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) [:1.6.0_07]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [:1.6.0_07]
at java.util.concurrent.FutureTask.run(FutureTask.java:138) [:1.6.0_07]
at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:106)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)
at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:118)
at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:208)
at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:91)
at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:167)
at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:87)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:184)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:135)
at org.jboss.wsf.spi.deployment.WSFServlet.service(WSFServlet.java:140) [jbossws-spi-2.0.0.Beta10.jar:2.0.0.Beta10]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:49) [jboss-as-jpa-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:144) [jboss-as-web-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:670) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) [jbossweb-7.0.2.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at java.lang.Thread.run(Thread.java:619) [:1.6.0_07]
Caused by: java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.DataException: Operand should contain 1 column(s)
at ix.houseware.category.service.CategoryImagesServiceImpl.count(CategoryImagesServiceImpl.java:31) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_07]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_07]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_07]
at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_07]
at org.jboss.ws.common.invocation.AbstractInvocationHandlerJSE.invoke(AbstractInvocationHandlerJSE.java:111)
at org.jboss.wsf.stack.cxf.JBossWSInvoker._invokeInternal(JBossWSInvoker.java:169)
... 33 more

Thanks
Sam