GWT + Spring hosted mode not working

Question

I have a following problem, probably somebody can help me?

I had an Spring MVC application, quite basic one, with a few simple jsp pages.

Also I had an Spring Security integrated with it.

Now I need to add some GWT widget to one page. No problem so far, I've added <div> to the page, added GWT module, all all needed GWT logic.

When I compile GWT and then deploy application to tomcat - everything works perfectly, I open app, login into it, open my page and see GWT UI components.

Now I want to open my application in hosted mode. There problems begin.

When I start hosted mode, Jetty starts, Spring framework initialize, and then my jsp (translated as .htm) open without hosted mode param ?gwt.codesvr=127.0.0.1:9997. After opening my page I see nothing if I delete compiled gwt code.

When I manually add "?gwt.codesvr=127.0.0.1:9997" hosted mode start and GWT module begin to load. This is when I get an error:

12:57:15.589 [ERROR] [rehabrental] Failed to load module 'testmodule' from user agent 'Mozilla/5.0 (Windows; U; Windows NT 6.1; ru; rv:1.9.2.23) Gecko/20110920 Firefox/3.6.23' at 127.0.0.1:63260

java.lang.NoSuchFieldError: warningThreshold at com.google.gwt.dev.javac.JdtCompiler.getCompilerOptions(JdtCompiler.java:413) at com.google.gwt.dev.javac.JdtCompiler$CompilerImpl.<init>(JdtCompiler.java:228) at com.google.gwt.dev.javac.JdtCompiler.doCompile(JdtCompiler.java:700)
at com.google.gwt.dev.javac.CompilationStateBuilder$CompileMoreLater.compile(CompilationStateBuilder.java:235) at com.google.gwt.dev.javac.CompilationStateBuilder.doBuildFrom(CompilationStateBuilder.java:447) at com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom(CompilationStateBuilder.java:370) at com.google.gwt.dev.cfg.ModuleDef.getCompilationState(ModuleDef.java:360) at com.google.gwt.dev.DevModeBase$UiBrowserWidgetHostImpl.createModuleSpaceHost(DevModeBase.java:110) at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:197) at java.lang.Thread.run(Unknown Source)

Answer 1

Do you use eclipse ?. If so you need rearrange your exported modules as JDT classes causes problems with the GWT compiler. See comment #7 in this GWT issue about pushing GWT dependencies above others, so that they are picked up first by the compiler.