This static variable isn't affect. You must put oldproject jar in WEB-INF/lib, isn't run in dev mode?
2011/8/3 Mike Dee <[email protected]> > Juan, I thought you may have found the problem. There was a static > variable, the old: > > static final long serialVersionUID = -1L; > > I removed it, but that didn't make a difference. > > Could it be that the data classes from the OldProject are really not > being picked up in NewUiProject? I tried doing a GWTCompile and > looking at the output. I don't see classes from OldProject in the WAR > for NewUiProject...even when I include the OldProject.jar! But, maybe > I don't understand enough about how GWT works? > > Mike > > > On Aug 3, 11:49 am, Juan Pablo Gardella <[email protected]> > wrote: > > java.lang.NoClassDefFoundError: > [Lcom/mycompany/myproject/data/FooDataClass; > > is not the same > > ClassNotFoundException< > http://stackoverflow.com/questions/1457863/what-is-the-difference-bet...>, > > so perhaps you have a dependency or is not serializable or instanciable > in > > runtime. > > > > Is serializable? have final fields? have a default constructor? > > > > 2011/8/3 Mike Dee <[email protected]> > > > > > > > > > > > > > > > > > I added a .gwt.xml file to the OldProject and inherited it from > > > NewUiProject. Only the data objects (pojos) from the OldProject are > > > listed in the source path of the .gwt.xml. > > > > > On Aug 3, 11:29 am, Juan Pablo Gardella <[email protected]> > > > wrote: > > > > RPC only work as transport layer between client and server side, so > you > > > must > > > > put old project as a jar and define *.gwt.xml inside and define the > > > module. > > > > In NewUiProject inherit it. You can't said that the POJO is only in > > > server > > > > side if RPC layer try serialize/deseralize > > > > > > Juan > > > > > > 2011/8/3 Mike Dee <[email protected]> > > > > > > > I'm updating an existing web app to use GWT and encountering a > problem > > > > > on server side. A goal is to reuse the server side data classes, > > > > > which are stored in a separate Eclipse project. > > > > > > > I have two projects: OldProject, which has old data classes (as > POJOs) > > > > > and NewUiProject, which is GWT. > > > > > > > If I put the OldProject POJOs in the NewUiProject, all is fine. Of > > > > > course the POJOs don't fall under the "shared" directory, so I > created > > > > > a .gwt.xml file and inherited that into the NewUiProject .gwt.xml. > > > > > > > If the OldProject POJOs are left in their project and NewUiProject > > > > > inherits the .gwt.xml from OldProject a runtime error occurs. > > > > > > > [ERROR] javax.servlet.ServletContext log: Exception while > dispatching > > > > > incoming RPC call > > > > > java.lang.NoClassDefFoundError: [Lcom/mycompany/myproject/data/ > > > > > FooDataClass; > > > > > at java.lang.Class.getDeclaredMethods0(Native Method) > > > > > at java.lang.Class.privateGetDeclaredMethods(Unknown Source) > > > > > at java.lang.Class.getMethod0(Unknown Source) > > > > > at java.lang.Class.getMethod(Unknown Source) > > > > > at > > > com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:299) > > > > > at > > > > > > com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java: > > > > > 206) > > > > > at > > > > > > com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java: > > > > > 248) > > > > > at > > > > > > com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java: > > > > > 62) > > > > > at > javax.servlet.http.HttpServlet.service(HttpServlet.java:637) > > > > > at > javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > > > > > > > It looks like FooDataClass is simply not found on the server side > and > > > > > I can't figure out why. I am using Eclipse and NewUiProject has a > > > > > project reference to OldProject and also includes OldProject in the > > > > > Java Build Path Projects. If there were a project with references > > > > > across projects I don't think the project would compile. I also > tried > > > > > packaging a JAR from OldProject and including it in NewUiProject, > but > > > > > that makes no difference. > > > > > > > I don't think this is a case of not inheriting classes so that GWT > > > > > knows to compile them in the client side. That would produce an > error > > > > > when starting up the client and an error message about not being > able > > > > > to find the source code for the data classes. I'm mot seeing that > > > > > error. The UI comes up and the error is thrown when interacting > with > > > > > the UI in such a way as to cause an RPC. > > > > > > > Any ideas? > > > > > > > Thanks, > > > > > Mike > > > > > > > -- > > > > > You received this message because you are subscribed to the Google > > > Groups > > > > > "Google Web Toolkit" group. > > > > > To post to this group, send email to > > > [email protected]. > > > > > To unsubscribe from this group, send email to > > > > > [email protected]. > > > > > For more options, visit this group at > > > > >http://groups.google.com/group/google-web-toolkit?hl=en. > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "Google Web Toolkit" group. > > > To post to this group, send email to > [email protected]. > > > To unsubscribe from this group, send email to > > > [email protected]. > > > For more options, visit this group at > > >http://groups.google.com/group/google-web-toolkit?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-web-toolkit?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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