Cobertura导致ClassNotFoundException

Question

当使用带有surefire和Cobertura的JUnit-Tests来构建我的项目时,通常,一切正常.但是当我最近添加了一个可以通过某些测试抛出(并且被排除)的异常时,maven总是告诉我:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.18.1:test (default-test) on project backend-server: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.18.1:test failed: There was an error in the forked process
[ERROR] java.lang.NoClassDefFoundError: de/unileipzig/irpsim/backend/simulation/TimerowTooShortException
[ERROR] at java.lang.Class.getDeclaredMethods0(Native Method)
[ERROR] at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
[ERROR] at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
[ERROR] at java.lang.Class.getMethod0(Class.java:3018)
[ERROR] at java.lang.Class.getMethod(Class.java:1784)
[ERROR] at org.apache.maven.surefire.util.ReflectionUtils.tryGetMethod(ReflectionUtils.java:57)
[ERROR] at org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isSuiteOnly(JUnit3TestChecker.java:64)
[ERROR] at org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isValidJUnit3Test(JUnit3TestChecker.java:59)
[ERROR] at org.apache.maven.surefire.common.junit3.JUnit3TestChecker.accept(JUnit3TestChecker.java:54)
[ERROR] at org.apache.maven.surefire.common.junit4.JUnit4TestChecker.accept(JUnit4TestChecker.java:52)
[ERROR] at org.apache.maven.surefire.util.DefaultScanResult.applyFilter(DefaultScanResult.java:97)
[ERROR] at org.apache.maven.surefire.junit4.JUnit4Provider.scanClassPath(JUnit4Provider.java:222)
[ERROR] at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:107)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
[ERROR] Caused by: java.lang.ClassNotFoundException: de.unileipzig.irpsim.backend.simulation.TimerowTooShortException
[ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
[ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
[ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[ERROR] ... 16 more
[ERROR] -> [Help 1]

不幸的是,使用-X或类似的东西运行没有帮助,并且在运行maven时也查看http://maven.apache.org/surefire/maven-surefire-plugin/examples/class-loading.html或Intermittent NoClassDefFoundError jenkins中的/ surefire构建没有为此问题提供任何有用的提示.

我的surefire-plugin定义如下:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.18.1</version>
    <configuration>
        <forkedProcessTimeoutInSeconds>900</forkedProcessTimeoutInSeconds>
        <argLine>-Djava.library.path=${nativelib.directory}</argLine>
        <excludes>
            <exclude>**/DatabaseTest.java</exclude>
        </excludes>
    </configuration>
</plugin>

当停用分叉时,一切都开始正常工作,但不包括native-libs,所以这不是一个选项.此外,当我排除所有使用它的测试时TimerowTooShortException,一切正常.

经过一些尝试,我发现cobertura,即使在测试运行时-Dcobertura.skip=true,也会导致问题.Cobertura在插件中的定义如下:

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>cobertura-maven-plugin</artifactId>
    <version>2.6</version>
    <configuration>
        <formats>
            <format>xml</format>
        </formats>
    </configuration>
    <dependencies>
        <dependency>
            <groupId>org.ow2.asm</groupId>
            <artifactId>asm</artifactId>
            <version>5.0.3</version>
        </dependency>
    </dependencies>
    <executions>
        <execution>
            <phase>package</phase>
            <goals>
                <goal>cobertura</goal>
            </goals>
        </execution>
    </executions>
</plugin>

不幸的是,当使用surefire和cobertura以及预期的异常时,我找不到有关此特定问题的任何信息.有人知道为什么在使用cobertura时会发生这种情况？这是否有解决方法？

Answer 1

我有同样的错误，但添加

`<testFailureIgnore>false</testFailureIgnore>`

解决问题。所以接下来的配置应该可以解决问题。

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.18.1</version>
            <configuration>
                <skipTests>${skipTests}</skipTests>
                <testFailureIgnore>false</testFailureIgnore>
                <includes>
                 <include>**/*.java</include>
                </includes>
            </configuration>
        </plugin>