例如使用maven编译使用了mina的包的工程，出现如下提示:
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Hello 1.0
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.187s
[INFO] Finished at: Tue Nov 27 06:27:12 CST 2012
[INFO] Final Memory: 3M/81M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project Hello: Could not resolve dependencies for project tur:Hello:jar:1.0: The following artifacts could not be resolved: org.apache.mina:mina-core:bundle:2.0.7, org.apache.mina:mina-integration-beans:bundle:2.0.7, org.apache.mina:mina-integration-jmx:bundle:2.0.7, org.apache.mina:mina-integration-ognl:bundle:2.0.7, org.apache.mina:mina-statemachine:bundle:2.0.7: Failure to find org.apache.mina:mina-core:bundle:2.0.7 in http://repo1.maven.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -> [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/DependencyResolutionException
这个问题可能是依赖的项目打包成bundle造成，比如mina就是这样的，打包成bundle,例子：
- <dependency>
- <groupId>org.apache.mina</groupId>
- <artifactId>mina-core</artifactId>
- <version>2.0.4</version>
- <type>bundle</type>
- <scope>compile</scope>
- </dependency>
加入上面依赖出现错误如下：
11-9-26 上午10时21分30秒: Maven Builder: AUTO_BUILD requireFullBuild
11-9-26 上午10时21分30秒: Build errors for test-http-mina; org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal on project test-http-mina: Could not resolve dependencies for project com.tecno:test-http-mina:jar:0.0.1-SNAPSHOT: Failure to find org.apache.mina:mina-core:bundle:2.0.4 in http://uk.maven.org/maven2/ was cached in the local repository, resolution will not be reattempted until the update interval of uk.maven.org has elapsed or updates are forced
11-9-26 上午10时22分11秒: Refreshing [/test-http-mina/pom.xml]
11-9-26 上午10时22分11秒: Missing artifact org.apache.mina:mina-core:bundle:2.0.4:compile
11-9-26 上午10时22分11秒: Maven Builder: AUTO_BUILD
原因
mina打包为了bundle格式，为此，需要添加插件
在maven的pom.xml中plugins段中加入plugin即可
- <plugin>
- <groupId>org.apache.felix</groupId>
- <artifactId>maven-bundle-plugin</artifactId>
- <extensions>true</extensions>
- </plugin>
其中
- <extensions>true</extensions>
是必须的。
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