我已经创建了一个扩展GWTTestCase的测试,但是我收到了这个错误:
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 <<< FAILURE!
GwtTestMyFirstTestCase.java位于/ src / test / java中,而GWT模块位于src / main / java中。我认为这应该不是问题。
我根据http://mojo.codehaus.org/gwt-maven-plugin/user-guide/testing.html完成了所有必需的操作,当然我的gwt模块已经间接导入了com.google.gwt.core.Core。
<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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myproject</groupId>
<artifactId>main</artifactId>
<packaging>jar</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>Main Module</name>
<properties>
<gwt.module>com.myproject.MainModule</gwt.module>
</properties>
<parent>
<groupId>com.myproject</groupId>
<artifactId>app</artifactId>
<version>0.1.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>com.myproject</groupId>
<artifactId>app-commons</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-dev</artifactId>
<version>${gwt.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<configuration>
<outputFile>../app/src/main/webapp/WEB-INF/main.tree</outputFile>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>test</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<classesDirectory>
${project.build.directory}/${project.build.finalName}/${gwt.module}
</classesDirectory>
</configuration>
</plugin>
</plugins>
</build>
</project>
这是测试用例,位于/ src / test / java / com / myproject / test / ui
public class GwtTestMyFirstTestCase extends GWTTestCase {
@Override
public String getModuleName() {
return "com.myproject.MainModule";
}
public void testSomething() {
}
}
这是我要测试的gwt模块,位于src / main / java / com / myproject / MainModule.gwt.xml中:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 1.7.1//EN" "http://google-web-toolkit.googlecode.com/svn/tags/1.7.1/distro-source/core/src/gwt-module.dtd">
<module>
<inherits name='com.myproject.Commons' />
<source path="site" />
<source path="com.myproject.test.ui" />
<set-property name="gwt.suppressNonStaticFinalFieldWarnings" value="true" />
<entry-point class='com.myproject.site.SiteModuleEntry' />
</module>
任何人都可以给我一两个关于我做错的提示吗?
答案 0 :(得分:9)
重现KevinWong从maven-gwt-plugin doc使用的解决方案,在尝试其他解决方案失去一个多小时后,这对我有用。
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.6</version>
<configuration>
<additionalClasspathElements>
<additionalClasspathElement>${project.build.sourceDirectory}</additionalClasspathElement>
<additionalClasspathElement>${project.build.testSourceDirectory}</additionalClasspathElement>
</additionalClasspathElements>
<useManifestOnlyJar>false</useManifestOnlyJar>
<forkMode>always</forkMode>
<systemProperties>
<property>
<name>gwt.args</name>
<value>-out \${webAppDirectory}</value>
</property>
</systemProperties>
</configuration>
</plugin>
答案 1 :(得分:6)
我认为正确的做法只是将测试排除在你的maven生命周期之外。写这些是什么意思?您需要做的是正确配置maven-surefire-plugin以使其正常工作。
你知道,该插件使用系统类加载器来查找类,但 GWTTestCase 需要 URLClassLoader 。这就是你获得[WARN] No source path entries; expect subsequent failures
的原因。以及ClassNotFoundException
。不过不用担心。很容易告诉maven使用URLClassLoader:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<useSystemClassLoader>false</useSystemClassLoader>
<additionalClasspathElements>
<additionalClasspathElement>${basedir}/src/main/java</additionalClasspathElement>
<additionalClasspathElement>${basedir}/src/test/java</additionalClasspathElement>
</additionalClasspathElements>
</configuration>
<executions>
<execution>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
</execution>
</executions>
</plugin>
请注意<userSystemClassLoader>false</useSystemClassLoader>
条目。
另外,请注意我添加了测试和主目录的源代码,以便允许GWT找到生成Javascript所需的类。您可能需要以不同方式配置它。
答案 2 :(得分:5)
问题是测试是由surefire而不是gwt-maven插件运行的。我必须明确地从surefire插件中排除我的gwt测试:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<excludes>
<exclude>**/*GwtTest*.java</exclude>
<exclude>**/*Gwt*Suite*.java</exclude>
</excludes>
</configuration>
</plugin>
我仍然无法运行我的GWTTestCase测试,但这是另一个问题,并且还有另一个问题。我认为这个问题已经解决。
答案 3 :(得分:3)
首先从maven-surefire-plugin
中排除获取测试用例:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.12.4</version>
<configuration>
<excludes>
<exclude>**/*GwtTest.java</exclude>
</excludes>
</configuration>
</plugin>
然后配置gwt-maven-plugin
:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>2.5.0</version>
<executions>
<execution>
<goals>
<goal>test</goal>
</goals>
</execution>
</executions>
<configuration>
<includes>**/*GwtTest.java</includes>
<mode>htmlunit</mode>
</configuration>
</plugin>
现在,您可以使用gwt:test
轻松运行gwt测试用例。
答案 4 :(得分:0)
我非常确信此错误与maven设置无关。我的第一个猜测是测试不在gwt编译路径上......我猜有问题的源代码是:
<source path="com.myproject.test.ui" />
尝试改为:
<source path="com/myproject/test/ui" />
或任何适当的路径。
答案 5 :(得分:0)
This sunfire config为我工作。
答案 6 :(得分:0)
解决方案
"[ERROR] Unable to find type 'java.lang.Object'
[ant:java] [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')"
GWT编译错误是在调用GWT编译器时使用“fork ='true'”。
这就是为什么这里发布的解决方案神奇地工作 - 他们有“forkMode = always”和类似的。
这是我如何调用GWT编译器:
ant.java(classname: 'com.google.gwt.dev.Compiler', failOnError: 'yes', maxmemory: '1000m', fork: 'true')
这里是Gradle中完整的GWT编译器调用:
war {
// Exclude unneccessery GWT Compiler artifacts
exclude "**/gwt-unitCache/**"
}
task widgetset << {
// Create widgetset directory (if needed)
def created = (new File(gwtBuildDir)).mkdirs()
// Compile
ant.java(classname: 'com.google.gwt.dev.Compiler', failOnError: 'yes', maxmemory: '1000m', fork: 'true')
{
classpath {
pathElement(path: configurations.compile.asPath)
pathElement(path: sourceSets.main.runtimeClasspath.asPath)
sourceSets.main.java.srcDirs.each {
pathelement(location: it.absolutePath)
}
}
arg(line: '-war ' + gwtBuildDir)
arg(line: '-logLevel INFO')
arg(line: '-style OBF')
arg(line: '-localWorkers 2')
arg(line: widgetsetClass)
// jvmarg(value: '-Djava.awt.headless=true')
// jvmarg(value: '-XX:MaxPermSize=256M')
// jvmarg(value: '-Xmx500M')
}
}
// Require widgetset compilation before WAR is built
war.dependsOn widgetset