Question

在构建ActiveJDBC（我是项目的作者）时，它首先构建一个Maven插件：https://github.com/javalite/activejdbc/tree/master/activejdbc-instrumentation 安装插件后，它将用于不同的项目模块（这是一个多模块项目）。有时构建成功，有时它会破坏此错误消息：

[INFO] JavaLite - Common .................................. SUCCESS [  4.241 s]
[INFO] JavaLite - Instrumentation Plugin and JavaAgent .... SUCCESS [  2.590 s]
[INFO] JavaLite - ActiveJDBC ORM Framework ................ FAILURE [  5.526 s]
[INFO] JavaLite - DB-Migrator Maven Plugin ................ SKIPPED
[INFO] JavaLite - DB-Migrator Integration Test ............ SKIPPED
[INFO] JavaLite - Git Info Maven plugin ................... SKIPPED
[INFO] JavaLite - ActiveJDBC Root ......................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 12.572 s
[INFO] Finished at: 2014-10-27T23:01:22-05:00
[INFO] Final Memory: 26M/271M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.javalite:activejdbc-instrumentation:1.4.10-SNAPSHOT:instrument (default) on project activejdbc: Execution default of goal org.javalite:activejdbc-instrumentation:1.4.10-SNAPSHOT:instrument failed: A required class was missing while executing org.javalite:activejdbc-instrumentation:1.4.10-SNAPSHOT:instrument: javassist/ClassPath
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>org.javalite:activejdbc-instrumentation:1.4.10-SNAPSHOT
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/home/igor/projects/javalite/activejdbc/activejdbc-instrumentation/target/activejdbc-instrumentation-1.4.10-SNAPSHOT.jar
[ERROR] urls[1] = file:/home/igor/.m2/repository/org/codehaus/plexus/plexus-utils/1.1/plexus-utils-1.1.jar
[ERROR] urls[2] = file:/home/igor/projects/javalite/activejdbc/activejdbc/target/classes/
[ERROR] urls[3] = file:/home/igor/.m2/repository/org/slf4j/slf4j-api/1.7.5/slf4j-api-1.7.5.jar
[ERROR] urls[4] = file:/home/igor/projects/javalite/activejdbc/javalite-common/target/javalite-common-1.4.10-SNAPSHOT.jar
[ERROR] urls[5] = file:/home/igor/projects/javalite/activejdbc/activejdbc/target/test-classes/
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
[ERROR] 
[ERROR] -----------------------------------------------------: javassist.ClassPath
[ERROR] -> [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.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :activejdbc

据我所知，问题是： A required class was missing while executing org.javalite:activejdbc-instrumentation:1.4.10-SNAPSHOT:instrument: javassist/ClassPath

但是这个类直接打包到插件的jar文件中，请看这里： https://oss.sonatype.org/content/repositories/snapshots/org/javalite/activejdbc/1.4.10-SNAPSHOT/

因此，构建有时可以工作，但有时会在相同的终端窗口上中断而不会对代码或配置进行任何更改。基本上，在我获得成功之前，我需要建立几次。请帮助识别并解决问题，

我尝试了Maven 3.0.4和3.2.3。

感谢

Answer 1

你对pom中的javassist有依赖吗？

<dependency> 
  <groupId>javassist</groupId>
  <artifactId>javassist</artifactId>
  <version>3.18.2.GA</version>
</dependency>

Maven的间歇性问题，缺少必需的类

1 个答案: