Null-pointer exception if classpath contains Spring Data Elasticsearch Repositories [DATAREST-109]

Petar Tahchiev opened DATAREST-109 and commented

Hi guys,

I'm trying out the spring data project, and I really love it :) ... However, I get this null-pointer exception, because my classpath contains a spring-data-elasticsearch repository:

2013-08-20 16:16:18,838 [qtp1098209814-127] ERROR org.springframework.data.rest.webmvc.RepositoryEntityController - 
java.lang.NullPointerException
	at org.springframework.data.rest.repository.support.RepositoryInformationSupport.findRepositoryInfoFor(RepositoryInformationSupport.java:61)
	at org.springframework.data.rest.webmvc.RepositoryInformationHandlerMethodArgumentResolver.resolveArgument(RepositoryInformationHandlerMethodArgumentResolver.java:44)
	at org.springframework.data.rest.webmvc.RepositoryRestRequestHandlerMethodArgumentResolver.resolveArgument(RepositoryRestRequestHandlerMethodArgumentResolver.java:46)
	at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:77)
	at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:162)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:123)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:735)

I debugged it, and I saw that here in this for loop:

for(Class<?> domainType : repositories) {
  RepositoryInformation repoInfo = findRepositoryInfoFor(domainType);
  ResourceMapping mapping = getResourceMapping(config, repoInfo);
  if(pathSegment.equals(mapping.getPath()) && mapping.isExported()) {
    return repoInfo;
  }
}

repoInfo gets resolved as null and mapping as well. Then inside the if statement the null-pointer occurs. BTW, I think the same error will occur if the classpath contains spring-data-solr repositories.

Cheers

Affects: 1.1.0.M1

Attachments:

• DATAREST-109.patch (1.01 kB)