In pretty basic RF scenario, I'm fetching one EntityProxy from server:
myRequestContext.search(url).with("path1", "path2").to(...).fire()
MyRequestContext.java:
@Service(ModelService.class)
public interface MyRequestContext extends RequestContext {
Request<ModelProxy> search(String url);
}
ModelService.search(String url) returns valid Model object *or* null if not
found.
Problem is, if search returns null value, .with(...) part in my client
request causes NPE on server:
09.04.2013. 10:34:48
com.google.web.bindery.requestfactory.server.RequestFactoryServlet doPost
SEVERE: Unexpected error
java.lang.NullPointerException
at
com.google.web.bindery.requestfactory.server.Resolver.addPathsToResolution(Resolver.java:488)
at
com.google.web.bindery.requestfactory.server.Resolver.resolveClientValue(Resolver.java:406)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.processInvocationMessages(SimpleRequestProcessor.java:491)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:233)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:135)
at
com.google.web.bindery.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java:133)
(...)
If I omit ".with(...)" part, request goes ok, giving me null or ModelProxy
instance (but without paths).
My current workaround is dumb but straightforward - two-phase search: first
without paths and if return value is not-null then I repeat same request
with paths. Where is the problem and is there a better workaround?
GWT is 2.5.1
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