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我有一個OSGI包，現在想爲它創建一個測試包。由於現有的捆綁包使用Tycho，我還想通過使用tycho-surefire-plugin來測試Eclipse/Tycho-way。Maven tycho-surefire-plugin失敗，返回代碼13
據我所知，測試Eclipse-way意味着，每個bundle都有一個對應的包含所有相關測試用例的包。
所以我創建了一個新的捆綁 「xyz.tests」 具有以下POM：
<artifactId>xyz.tests</artifactId>
<packaging>eclipse-test-plugin</packaging>
<build>
<plugins>
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-surefire-plugin</artifactId>
<version>0.21.0</version>
</plugin>
</plugins>
</build>
我也創建了第谷/ OSGI項目的其它標準文件 META-INF/MANIFEST.MF
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: %Bundle-Name
Bundle-SymbolicName: xyz
Bundle-Version: 0.0.1.qualifier
Bundle-RequiredExecutionEnvironment: JavaSE-1.7
Fragment-Host: zyx
Import-Package: org.junit;version="4.11.0"
Bundle-ActivationPolicy: lazy
build.properties
output.. = bin/
source.. = src/
bin.includes = META-INF/,\
OSGI-INF/,\
.
和OSGI-INF/L10N/bundle.properties
# META-INF/MANIFEST.MF
Bundle-Name=XYZ Tests
然後我寫了一個「測試案例」因爲我首先要檢查是否配置了我的Eclipse的測試插件正確
package xyz.tests.xyz;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class XYZTest {
@Test
public void testClasstest() {
assertEquals("Tests", true, true);
}
}
當我運行MVN包爲目標，一切編譯和打包沒有錯誤。然後我運行mvn integration-test作爲目標（這是tycho-surefire開始工作的部分）。在那裏，我得到一個錯誤消息提供任何有用的信息，對我來說：
[INFO] --- tycho-surefire-plugin:0.21.0:test (default-test) @ xyz.tests ---
[INFO] Expected eclipse log file: /pathXYZ/target/work/data/.metadata/.log
[INFO] Command line:
[/usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java, -Dosgi.noShutdown=false, -Dosgi.os=linux, -Dosgi.ws=gtk, -Dosgi.arch=x86_64, -Dosgi.clean=true, -jar, /home/erdi/.m2/repository/p2/osgi/bundle/org.eclipse.equinox.launcher/1.3.0.v20130327-1440/org.eclipse.equinox.launcher-1.3.0.v20130327-1440.jar, -data, /pathXYZ/target/work/data, -install, /pathXYZ/target/work, -configuration, /pathXYZ/target/work/configuration, -application, org.eclipse.tycho.surefire.osgibooter.headlesstest, -testproperties, /pathXYZ/target/surefire.properties]
xyz: Hello World!!
-------------------------------------------------------
T E S T S
-------------------------------------------------------
xyz: Goodbye World!!
An error has occurred. See the log file
/pathXYZ/target/work/configuration/1432736234573.log.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 26.050s
[INFO] Finished at: Wed May 27 16:17:16 CEST 2015
[INFO] Final Memory: 69M/362M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-surefire-plugin:0.21.0:test (default-test) on project xyz.tests: An unexpected error occured (return code 13). See log for details. -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
的「XYZ：你好/再見世界」的消息時，包我想測試開始被印刷信息/停止。這意味着，當軟件包啓動時，我的配置似乎沒有問題，但在發生錯誤後立即出現。不幸的是尋找到日誌文件還顯示沒有什麼用處：
!SESSION 2015-05-27 16:17:14.238 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.7.0_75
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments: -application org.eclipse.tycho.surefire.osgibooter.headlesstest -testproperties /pathXYZ/target/work/data -application org.eclipse.tycho.surefire.osgibooter.headlesstest -testproperties /pathXYZ/target/surefire.properties
!ENTRY org.eclipse.osgi 4 0 2015-05-27 16:17:15.891
!MESSAGE Application error
!STACK 1
org.apache.maven.surefire.util.SurefireReflectionException: java.lang.reflect.InvocationTargetException; nested exception is java.lang.reflect.InvocationTargetException: null
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:175)
at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcess(SurefireStarter.java:123)
at org.eclipse.tycho.surefire.osgibooter.OsgiSurefireBooter.run(OsgiSurefireBooter.java:87)
at org.eclipse.tycho.surefire.osgibooter.HeadlessTestApplication.run(HeadlessTestApplication.java:21)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
Caused by: java.lang.NullPointerException
at java.lang.Class.getAnnotation(Class.java:3217)
at org.apache.maven.surefire.common.junit4.JUnit4TestChecker.isValidJUnit4Test(JUnit4TestChecker.java:63)
at org.apache.maven.surefire.common.junit4.JUnit4TestChecker.accept(JUnit4TestChecker.java:52)
at org.apache.maven.surefire.util.DefaultDirectoryScanner.locateTestClasses(DefaultDirectoryScanner.java:80)
at org.apache.maven.surefire.junit4.JUnit4Provider.scanClassPath(JUnit4Provider.java:174)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:83)
... 28 more
所以我知道一個空指針異常的發生，但我不知道爲什麼/哪裏。
我認爲這將真正幫助看看這背後隱藏着整個錯誤路徑「...... 28多」，但我不知道怎麼看的呢？
我也不能完全確定如果我正確地配置了一切，因爲我沒有找到有用的教程，並且或多或少地查看了其他eclipse項目的測試代碼庫。