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POError when running a GWTTestCase using maven gwt plugin
 

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  1. POError when running a GWTTestCase using maven gwt plugin
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    <p>I've created a test which extends GWTTestCase but I'm getting this error:</p> <pre><code>mvn integration-test gwt:test ... Running com.myproject.test.ui.GwtTestMyFirstTestCase Translatable source found in... [WARN] No source path entries; expect subsequent failures [ERROR] Unable to find type 'java.lang.Object' [ERROR] Hint: Check that your module inherits 'com.google.gwt.core.Core' either directly or indirectly (most often by inheriting module 'com.google.gwt.user.User') Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 2.1 sec &lt;&lt;&lt; FAILURE! </code></pre> <p>GwtTestMyFirstTestCase.java is in /src/test/java, while the GWT module is located in src/main/java. I assume this shouldn't be a problem.</p> <p>I've done everything required according to <a href="http://mojo.codehaus.org/gwt-maven-plugin/user-guide/testing.html" rel="noreferrer">http://mojo.codehaus.org/gwt-maven-plugin/user-guide/testing.html</a> and of course that my gwt module already has com.google.gwt.core.Core indirectly imported.</p> <pre><code>&lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"&gt; &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt; &lt;groupId&gt;com.myproject&lt;/groupId&gt; &lt;artifactId&gt;main&lt;/artifactId&gt; &lt;packaging&gt;jar&lt;/packaging&gt; &lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt; &lt;name&gt;Main Module&lt;/name&gt; &lt;properties&gt; &lt;gwt.module&gt;com.myproject.MainModule&lt;/gwt.module&gt; &lt;/properties&gt; &lt;parent&gt; &lt;groupId&gt;com.myproject&lt;/groupId&gt; &lt;artifactId&gt;app&lt;/artifactId&gt; &lt;version&gt;0.1.0-SNAPSHOT&lt;/version&gt; &lt;/parent&gt; &lt;dependencies&gt; &lt;dependency&gt; &lt;groupId&gt;com.myproject&lt;/groupId&gt; &lt;artifactId&gt;app-commons&lt;/artifactId&gt; &lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;com.google.gwt&lt;/groupId&gt; &lt;artifactId&gt;gwt-dev&lt;/artifactId&gt; &lt;version&gt;${gwt.version}&lt;/version&gt; &lt;scope&gt;provided&lt;/scope&gt; &lt;/dependency&gt; &lt;/dependencies&gt; &lt;build&gt; &lt;plugins&gt; &lt;plugin&gt; &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt; &lt;artifactId&gt;maven-dependency-plugin&lt;/artifactId&gt; &lt;configuration&gt; &lt;outputFile&gt;../app/src/main/webapp/WEB-INF/main.tree&lt;/outputFile&gt; &lt;/configuration&gt; &lt;/plugin&gt; &lt;plugin&gt; &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt; &lt;artifactId&gt;gwt-maven-plugin&lt;/artifactId&gt; &lt;executions&gt; &lt;execution&gt; &lt;goals&gt; &lt;goal&gt;test&lt;/goal&gt; &lt;/goals&gt; &lt;/execution&gt; &lt;/executions&gt; &lt;/plugin&gt; &lt;plugin&gt; &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt; &lt;artifactId&gt;maven-jar-plugin&lt;/artifactId&gt; &lt;configuration&gt; &lt;classesDirectory&gt; ${project.build.directory}/${project.build.finalName}/${gwt.module} &lt;/classesDirectory&gt; &lt;/configuration&gt; &lt;/plugin&gt; &lt;/plugins&gt; &lt;/build&gt; &lt;/project&gt; </code></pre> <p>Here is the test case, located in /src/test/java/com/myproject/test/ui</p> <pre><code>public class GwtTestMyFirstTestCase extends GWTTestCase { @Override public String getModuleName() { return "com.myproject.MainModule"; } public void testSomething() { } } </code></pre> <p>Here is the gwt module I'm trying to test, located in src/main/java/com/myproject/MainModule.gwt.xml:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 1.7.1//EN" "http://google-web-toolkit.googlecode.com/svn/tags/1.7.1/distro-source/core/src/gwt-module.dtd"&gt; &lt;module&gt; &lt;inherits name='com.myproject.Commons' /&gt; &lt;source path="site" /&gt; &lt;source path="com.myproject.test.ui" /&gt; &lt;set-property name="gwt.suppressNonStaticFinalFieldWarnings" value="true" /&gt; &lt;entry-point class='com.myproject.site.SiteModuleEntry' /&gt; &lt;/module&gt; </code></pre> <p>Can anyone give me a hint or two about what I'm doing wrong?</p>
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    1. COWithout the POM contents etc. it's hard to guest what the problem...
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    2. CORun tests in separate process [See my answer](http://stackoverflow.com/a/16194910/651140)
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