Unable to debug my gwt test case in eclipse

Starting Jetty on port 0
[WARN] ServletContainerInitializers: detected. Class hierarchy: empty
Rebinding com.google.gwt.user.client.impl.WindowImpl
Checking rule <replace-with class='com.google.gwt.user.client.impl.WindowImplIE'/>
[ERROR] Error while executing the JavaScript provider for property 'user.agent'
com.google.gwt.core.client.JavaScriptException: (null) __gwt_getProperty([string: 'user.agent']): null
at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:252)
at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:121)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:573)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:293)
at com.google.gwt.dev.shell.ModuleSpacePropertyOracle.computePropertyValue(ModuleSpacePropertyOracle.java:152)
at com.google.gwt.dev.shell.ModuleSpacePropertyOracle.getSelectionProperty(ModuleSpacePropertyOracle.java:89)
at com.google.gwt.dev.cfg.ConditionWhenPropertyIs.doEval(ConditionWhenPropertyIs.java:77)
at com.google.gwt.dev.cfg.Condition.isTrue(Condition.java:53)
at com.google.gwt.dev.cfg.ConditionAny.doEval(ConditionAny.java:52)
at com.google.gwt.dev.cfg.Condition.isTrue(Condition.java:53)
at com.google.gwt.dev.cfg.ConditionAll.doEval(ConditionAll.java:53)
at com.google.gwt.dev.cfg.Condition.isTrue(Condition.java:53)
at com.google.gwt.dev.cfg.Rule.isApplicable(Rule.java:52)
at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.getRebindRule(StandardRebindOracle.java:116)
at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.rebind(StandardRebindOracle.java:66)
at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:262)
at com.google.gwt.dev.shell.ShellModuleSpaceHost.rebind(ShellModuleSpaceHost.java:144)
at com.google.gwt.dev.shell.ModuleSpace.rebind(ModuleSpace.java:597)
at com.google.gwt.dev.shell.ModuleSpace.rebindAndCreate(ModuleSpace.java:483)
at com.google.gwt.dev.shell.GWTBridgeImpl.create(GWTBridgeImpl.java:49)
at com.google.gwt.core.shared.GWT.createImpl(GWT.java:83)
at com.google.gwt.core.client.GWT.create(GWT.java:86)
at com.google.gwt.user.client.Window.<clinit>(Window.java:514)
at com.google.gwt.user.client.Window$Location.getQueryString(Window.java:267)
at com.google.gwt.user.client.Window$Location.ensureListParameterMap(Window.java:334)
at com.google.gwt.user.client.Window$Location.getParameter(Window.java:212)
at com.google.gwt.logging.client.LogConfiguration$LogConfigurationImplRegular.setLevels(LogConfiguration.java:111)
at com.google.gwt.logging.client.LogConfiguration$LogConfigurationImplRegular.configureClientSideLogging(LogConfiguration.java:72)
at com.google.gwt.logging.client.LogConfiguration.onModuleLoad(LogConfiguration.java:162)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:423)
at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:200)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:530)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:368)
at java.lang.Thread.run(Thread.java:745)
[ERROR] Unable to get value of property 'user.agent'
com.google.gwt.core.ext.BadPropertyValueException: Missing property 'user.agent' was not specified
at com.google.gwt.dev.shell.ModuleSpacePropertyOracle.getConfigurationProperty(ModuleSpacePropertyOracle.java:74)
at com.google.gwt.dev.cfg.ConditionWhenPropertyIs.doEval(ConditionWhenPropertyIs.java:81)
at com.google.gwt.dev.cfg.Condition.isTrue(Condition.java:53)
at com.google.gwt.dev.cfg.ConditionAny.doEval(ConditionAny.java:52)
at com.google.gwt.dev.cfg.Condition.isTrue(Condition.java:53)
at com.google.gwt.dev.cfg.ConditionAll.doEval(ConditionAll.java:53)
at com.google.gwt.dev.cfg.Condition.isTrue(Condition.java:53)
at com.google.gwt.dev.cfg.Rule.isApplicable(Rule.java:52)
at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.getRebindRule(StandardRebindOracle.java:116)
at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.rebind(StandardRebindOracle.java:66)
at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:262)
at com.google.gwt.dev.shell.ShellModuleSpaceHost.rebind(ShellModuleSpaceHost.java:144)
at com.google.gwt.dev.shell.ModuleSpace.rebind(ModuleSpace.java:597)
at com.google.gwt.dev.shell.ModuleSpace.rebindAndCreate(ModuleSpace.java:483)
at com.google.gwt.dev.shell.GWTBridgeImpl.create(GWTBridgeImpl.java:49)
at com.google.gwt.core.shared.GWT.createImpl(GWT.java:83)
at com.google.gwt.core.client.GWT.create(GWT.java:86)
at com.google.gwt.user.client.Window.<clinit>(Window.java:514)
at com.google.gwt.user.client.Window$Location.getQueryString(Window.java:267)
at com.google.gwt.user.client.Window$Location.ensureListParameterMap(Window.java:334)
at com.google.gwt.user.client.Window$Location.getParameter(Window.java:212)
at com.google.gwt.logging.client.LogConfiguration$LogConfigurationImplRegular.setLevels(LogConfiguration.java:111)
at com.google.gwt.logging.client.LogConfiguration$LogConfigurationImplRegular.configureClientSideLogging(LogConfiguration.java:72)
at com.google.gwt.logging.client.LogConfiguration.onModuleLoad(LogConfiguration.java:162)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:423)
at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:200)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:530)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:368)
at java.lang.Thread.run(Thread.java:745)
[ERROR] Deferred binding failed for 'com.google.gwt.user.client.impl.WindowImpl'; expect subsequent failures
[ERROR] Unable to load module entry point class com.google.gwt.logging.client.LogConfiguration (see associated exception for details)
java.lang.RuntimeException: Deferred binding failed for 'com.google.gwt.user.client.impl.WindowImpl' (did you forget to inherit a required module?)
at com.google.gwt.dev.shell.GWTBridgeImpl.create(GWTBridgeImpl.java:53)
at com.google.gwt.core.shared.GWT.createImpl(GWT.java:83)
at com.google.gwt.core.client.GWT.create(GWT.java:86)
at com.google.gwt.user.client.Window.<clinit>(Window.java:514)
at com.google.gwt.user.client.Window$Location.getQueryString(Window.java:267)
at com.google.gwt.user.client.Window$Location.ensureListParameterMap(Window.java:334)
at com.google.gwt.user.client.Window$Location.getParameter(Window.java:212)
at com.google.gwt.logging.client.LogConfiguration$LogConfigurationImplRegular.setLevels(LogConfiguration.java:111)
at com.google.gwt.logging.client.LogConfiguration$LogConfigurationImplRegular.configureClientSideLogging(LogConfiguration.java:72)
at com.google.gwt.logging.client.LogConfiguration.onModuleLoad(LogConfiguration.java:162)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:423)
at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:200)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:530)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:368)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.google.gwt.core.ext.UnableToCompleteException: (see previous log entries)
at com.google.gwt.dev.cfg.ConditionWhenPropertyIs.doEval(ConditionWhenPropertyIs.java:122)
at com.google.gwt.dev.cfg.Condition.isTrue(Condition.java:53)
at com.google.gwt.dev.cfg.ConditionAny.doEval(ConditionAny.java:52)
at com.google.gwt.dev.cfg.Condition.isTrue(Condition.java:53)
at com.google.gwt.dev.cfg.ConditionAll.doEval(ConditionAll.java:53)
at com.google.gwt.dev.cfg.Condition.isTrue(Condition.java:53)
at com.google.gwt.dev.cfg.Rule.isApplicable(Rule.java:52)
at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.getRebindRule(StandardRebindOracle.java:116)
at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.rebind(StandardRebindOracle.java:66)
at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:262)
at com.google.gwt.dev.shell.ShellModuleSpaceHost.rebind(ShellModuleSpaceHost.java:144)
at com.google.gwt.dev.shell.ModuleSpace.rebind(ModuleSpace.java:597)
at com.google.gwt.dev.shell.ModuleSpace.rebindAndCreate(ModuleSpace.java:483)
at com.google.gwt.dev.shell.GWTBridgeImpl.create(GWTBridgeImpl.java:49)
... 18 more
[ERROR] Failed to load module 'com.ainosoft.deba.Gwt_2_8_1_learningJUnit.JUnit' from user agent 'HtmlUnit-Mozilla/5.0 (Windows NT 6.1; rv:38.0) Gecko/20100101 Firefox/38.0' at 127.0.0.1:53229
com.google.gwt.core.ext.UnableToCompleteException: (see previous log entries)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:461)
at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:200)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:530)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:368)
at java.lang.Thread.run(Thread.java:745)
Aug 16, 2017 1:13:38 PM com.gargoylesoftware.htmlunit.WebConsole info
INFO: /launch error: Failed to load module com.ainosoft.deba.Gwt_2_8_1_learningJUnit.JUnit: undefined

Hi guys,

Somehow I am unable to understand our lack of interest in supporting Java based debugging for GWT test cases. (devmode is deprecated )

I followed the workaround suggested in the release notes and got to a point where it does try to execute the test without compiling to JavaScript. But got an exception. The detailed exception message is attached as a text file. 

Aug 16, 2017 1:13:38 PM com.gargoylesoftware.htmlunit.WebConsole info
INFO: /launch error: Failed to load module com.ainosoft.deba.Gwt_2_8_1_learningJUnit.JUnit: undefined

I passed the -Dgwt.args="devMode" to the JUnit test configuration. 

Can someone help me out ?

thanks a lot,

Debasish

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