Throws Advice Problem- At least one handler method must be f

[skbhasin]

Hi All,

I have defined the throws advice like this -

public class ExceptionAdvice implements ThrowsAdvice {

private static final String ERROR = "An unexpected error ";
private static long incidentSeed = 1;
private transient Log logger = LoggingInit.getLog(ExceptionAdvice.class.getName() );

/**
* Public constructor required as per coding standards, but not for general consumption.
*/
public ExceptionAdvice() {
}

void afterThrowing(Throwable throwable) {
processException(throwable);
}


void afterThrowing(BusinessException be){
populateErrorMessages(be);

if(logger.isInfoEnabled()) {
logger.info(be.toString());
}
}

}

Please provide solution to following problem -
When I configure this interceptor for my services bean, and start the app, I get following exception -

org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'CachePopulator' defined in class path resource [global_beans.xml]: Initialization of bean failed; nested exception is org.aopalliance.aop.AspectException: null
java.lang.IllegalArgumentException: At least one handler method must be found in class class com.mftl.gfas.common.ExceptionAdvice
at org.springframework.aop.framework.adapter.ThrowsAd viceInterceptor.<init>(ThrowsAdviceInterceptor.java:77)
at org.springframework.aop.framework.adapter.ThrowsAd viceAdapter.getInterceptor(ThrowsAdviceAdapter.jav a:41)
at org.springframework.aop.framework.adapter.DefaultA dvisorAdapterRegistry.getInterceptor(DefaultAdviso rAdapterRegistry.java:75)
at org.springframework.aop.framework.AdvisorChainFact oryUtils.calculateInterceptorsAndDynamicIntercepti onAdvice(AdvisorChainFactoryUtils.java:74)
at org.springframework.aop.framework.HashMapCachingAd visorChainFactory.getInterceptorsAndDynamicInterce ptionAdvice(HashMapCachingAdvisorChainFactory.java :46)
at org.springframework.aop.framework.Cglib2AopProxy$P roxyCallbackFilter.accept(Cglib2AopProxy.java:765)
at net.sf.cglib.proxy.Enhancer.emitMethods(Enhancer.j ava:950)
at net.sf.cglib.proxy.Enhancer.emit(Enhancer.java:747 )
at net.sf.cglib.proxy.Enhancer.generateClass(Enhancer .java:481)
at net.sf.cglib.transform.TransformingClassGenerator. generateClass(TransformingClassGenerator.java:33)
at net.sf.cglib.core.DefaultGeneratorStrategy.generat e(DefaultGeneratorStrategy.java:25)
at net.sf.cglib.core.AbstractClassGenerator.create(Ab stractClassGenerator.java:215)
at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer. java:368)
at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:2 80)
at org.springframework.aop.framework.Cglib2AopProxy.g etProxy(Cglib2AopProxy.java:163)
at org.springframework.aop.framework.Cglib2AopProxy.g etProxy(Cglib2AopProxy.java:124)
at org.springframework.aop.framework.ProxyFactoryBean .getSingletonInstance(ProxyFactoryBean.java:241)
at org.springframework.aop.framework.ProxyFactoryBean .setBeanFactory(ProxyFactoryBean.java:201)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBean(AbstractAuto wireCapableBeanFactory.java:301)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBean(AbstractAuto wireCapableBeanFactory.java:223)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:236)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:159)
at org.springframework.beans.factory.support.DefaultL istableBeanFactory.preInstantiateSingletons(Defaul tListableBeanFactory.java:255)
at org.springframework.context.support.AbstractApplic ationContext.refresh(AbstractApplicationContext.ja va:317)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationContext.java:80)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationContext.java:65)
at com.mftl.gfas.util.BeanFactory.<init>(BeanFactory.java:41)
at com.mftl.gfas.util.BeanFactory.instance(BeanFactor y.java:28)
at com.mftl.gfas.servlet.initialisation.Initialisatio n.init(Initialisation.java:31)

[robh]

Have you tried making the handler methods public?

Rob

[skbhasin]

Thanks Rob, for your timely help.

Could please tell me from your experience for the following issues -
1. In some scenarios we need to choose to go for Web Service or EJB.
When should we be chossing one over another ?

2. Could you be able to tell us about Hibernate - when we should
look for JDBC based solution over Hibernate as for some complex
queries and large results sets Hibernate doesn't perform well ?

Regards
Shiv