我编写了一个Maven插件抽象程序,名为maven-base-plugin。此插件遍历所有类和资源并执行某些任务。由于它是一个抽象插件,因此该插件的包装设置为maven-plugin
,而不是“jar”。
我有另一个插件tools-reporter
,它使用上面的插件API为我的项目创建报告。同样,报告的报告和目的地是接口,以便将来可以扩展。同样,这个项目的包装为“jar”。
现在,我有第三个插件,具体取决于生成某些报告以用于工件和资源的报告插件。这个插件的包装设置为“maven-plugin”。什么让我暂时失去了一段时间,各种检查都没有解决,是我无法成功构建第三个插件。
当我这样做时,我得到:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-plugin-plugin:2.3:descriptor (default-descriptor) on project tools-reporter-sample: Execution default-descriptor of goal org.apache.maven.plugins:maven-plugin-plugin:2.3:descriptor failed: 0 -> [Help 1]
细节说:
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-plugin-plugin:2.3:descriptor (default-descriptor) on project tools-reporter-sample: Execution default-descriptor of goal org.apache.maven.plugins:maven-plugin-plugin:2.3:descriptor failed: 0
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-descriptor of goal org.apache.maven.plugins:maven-plugin-plugin:2.3:descriptor failed: 0
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
... 25 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
at org.apache.maven.tools.plugin.extractor.java.JavaMojoDescriptorExtractor.getJavaClass(JavaMojoDescriptorExtractor.java:534)
at org.apache.maven.tools.plugin.extractor.java.JavaMojoDescriptorExtractor.execute(JavaMojoDescriptorExtractor.java:553)
at org.apache.maven.tools.plugin.scanner.DefaultMojoScanner.populatePluginDescriptor(DefaultMojoScanner.java:84)
at org.apache.maven.plugin.plugin.AbstractGeneratorMojo.execute(AbstractGeneratorMojo.java:135)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
... 26 more
非常感谢任何帮助或见解。
顺便说一下,我尝试过各种将包装设置为不同值的组合。唯一可行的是宣布第三个插件tools-reporter-sample
作为一个简单的“罐子”,这有点适得其反,因为它消除了这个练习的全部目的。
这是违规代码的要点:
以下是对每个内容的描述:
pom.xml
文件pom.xml
文件。pom.xml
文件。答案 0 :(得分:0)
事实证明,失败不是由插件分层设计造成的。但奇怪的是,让插件在其类路径中包含一个注释。我有一节课,@interface Sample {
。一旦我删除它,一切都解决了。
但我还没弄明白为什么。