Form Validation Using JSR 303 Annotations

[JohnTheDroider]

I am trying to add Form Validation Using JSR 303 Annotations to my project. once I add the following line to my flow.xml file I get a error and nothing works.

<flow:flow-builder-services id="flowBuilderServices" view-factory-creator="mvcViewFactoryCreator" validator="validator"
development="true" />

this is the error

2012-07-24 13:05:24,357 [tomcat-http--6] DEBUG org.springframework.web.servlet.DispatcherServlet - Could not complete request
org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.AbstractMethodError: org.hibernate.ejb.HibernatePersistence.getProviderUtil()Ljavax/persistence/spi/ProviderUtil;
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:972)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at com.springsource.insight.collection.tcserver.request.HttpRequestOperationCollectionValve.invoke(HttpRequestOperationCollectionValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.AbstractMethodError: org.hibernate.ejb.HibernatePersistence.getProviderUtil()Ljavax/persistence/spi/ProviderUtil;
	at javax.persistence.Persistence$1.isLoaded(Persistence.java:78)
	at org.hibernate.validator.engine.resolver.JPATraversableResolver.isReachable(JPATraversableResolver.java:33)
	at org.hibernate.validator.engine.resolver.DefaultTraversableResolver.isReachable(DefaultTraversableResolver.java:112)
	at org.hibernate.validator.engine.resolver.SingleThreadCachedTraversableResolver.isReachable(SingleThreadCachedTraversableResolver.java:47)
	at org.hibernate.validator.engine.ValidatorImpl.isValidationRequired(ValidatorImpl.java:764)
	at org.hibernate.validator.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:331)
	at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForRedefinedDefaultGroup(ValidatorImpl.java:278)
	at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:260)
	at org.hibernate.validator.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:213)
	at org.hibernate.validator.engine.ValidatorImpl.validate(ValidatorImpl.java:119)
	at org.springframework.validation.beanvalidation.SpringValidatorAdapter.validate(SpringValidatorAdapter.java:89)
	at org.springframework.webflow.validation.ValidationHelper.invokeValidatorDefaultValidateMethod(ValidationHelper.java:247)
	at org.springframework.webflow.validation.ValidationHelper.validate(ValidationHelper.java:111)
	at org.springframework.webflow.mvc.view.AbstractMvcView.validate(AbstractMvcView.java:634)
	at org.springframework.webflow.mvc.view.AbstractMvcView.processUserEvent(AbstractMvcView.java:224)
	at org.springframework.webflow.engine.ViewState.handleEvent(ViewState.java:226)
	at org.springframework.webflow.engine.ViewState.resume(ViewState.java:196)
	at org.springframework.webflow.engine.Flow.resume(Flow.java:545)
	at org.springframework.webflow.engine.impl.FlowExecutionImpl.resume(FlowExecutionImpl.java:258)
	at org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:169)
	at org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:183)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
	... 22 more
Jul 24, 2012 1:05:24 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [spring] in context with path [/MyHelloWorldFlow] threw exception [Handler processing failed; nested exception is java.lang.AbstractMethodError: org.hibernate.ejb.HibernatePersistence.getProviderUtil()Ljavax/persistence/spi/ProviderUtil;] with root cause
java.lang.AbstractMethodError: org.hibernate.ejb.HibernatePersistence.getProviderUtil()Ljavax/persistence/spi/ProviderUtil;
	at javax.persistence.Persistence$1.isLoaded(Persistence.java:78)
	at org.hibernate.validator.engine.resolver.JPATraversableResolver.isReachable(JPATraversableResolver.java:33)
	at org.hibernate.validator.engine.resolver.DefaultTraversableResolver.isReachable(DefaultTraversableResolver.java:112)
	at org.hibernate.validator.engine.resolver.SingleThreadCachedTraversableResolver.isReachable(SingleThreadCachedTraversableResolver.java:47)
	at org.hibernate.validator.engine.ValidatorImpl.isValidationRequired(ValidatorImpl.java:764)
	at org.hibernate.validator.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:331)
	at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForRedefinedDefaultGroup(ValidatorImpl.java:278)
	at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:260)
	at org.hibernate.validator.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:213)
	at org.hibernate.validator.engine.ValidatorImpl.validate(ValidatorImpl.java:119)
	at org.springframework.validation.beanvalidation.SpringValidatorAdapter.validate(SpringValidatorAdapter.java:89)
	at org.springframework.webflow.validation.ValidationHelper.invokeValidatorDefaultValidateMethod(ValidationHelper.java:247)
	at org.springframework.webflow.validation.ValidationHelper.validate(ValidationHelper.java:111)
	at org.springframework.webflow.mvc.view.AbstractMvcView.validate(AbstractMvcView.java:634)
	at org.springframework.webflow.mvc.view.AbstractMvcView.processUserEvent(AbstractMvcView.java:224)
	at org.springframework.webflow.engine.ViewState.handleEvent(ViewState.java:226)
	at org.springframework.webflow.engine.ViewState.resume(ViewState.java:196)
	at org.springframework.webflow.engine.Flow.resume(Flow.java:545)
	at org.springframework.webflow.engine.impl.FlowExecutionImpl.resume(FlowExecutionImpl.java:258)
	at org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:169)
	at org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:183)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at com.springsource.insight.collection.tcserver.request.HttpRequestOperationCollectionValve.invoke(HttpRequestOperationCollectionValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:679)