Imagine your favorite statically compiled language's compiler treated certain classes of statically determinable semantic errors differently than normal. Instead of erroring out with a useful message, the compiler simply injects code in the offending location that will cause an error at runtime. The runtime error will not provide a useful stack trace, nor will it provide any information to the cause of the error. Now imagine that your compiler take several minutes to compile your program, so that when you encounter the error at runtime you have to guess what went wrong at compile time, modify your code, recompile, and after several minutes re-run your application to see if the error is still present.
Such a compiler would be ludicrous, yet this appears to be exactly what the GWT compiler does. It knows that I as a user marked a particular class as IsSerializable. It knows that I am using this class as part of an RPC interface. It knows that it will not or cannot actually compile code to serialize the object at runtime. And yet, the compiler moves on and compiles the code in such a way that a useless error message will display at runtime when the RPC is invoked. Even if I set the log level to ALL, I get no information from the compiler's output that I couldn't get by inspecting the produced gwt.rpc whitelist file manually. Why does the gwt 2.0 compiler not error out automatically with a useful message in this scenario? I can't think of any situation where the current behavior is desirable. Also, why is no useful diagnostic information ever given when the scenario occurs even with full logging enabled? I have searched the Internet for a long time for an answer to this and have not found an answer. I have also wasted a significant number of hours playing a guessing game when my classes aren't serializable. I feel like every time I create a new RPC, after potentially hours of painful debugging I find a new reason for the gwt compiler to fail silently. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
