CoreException: Could not calculate build plan: Plugin org.apache.maven.plugins:maven-compiler-plugin:3.1 or one of its dependencies could not be resolved: Failure to find org.apache.maven.plugins:maven-compiler-plugin:jar:3.1 in http://repository.jboss.org/nexus/content/groups/public was cached in the local repository, resolution will not be reattempted until the update interval of jboss-public-repository-group has elapsed or updates are forced
原因是：本地設置的鏡像倉庫中沒有對應的jar導致的
<mirrors> <mirror> <id>jboss-public-repository-group</id> <mirrorOf>central</mirrorOf> <name>JBoss Public Repository Group</name> <url>http://repository.jboss.org/nexus/content/groups/public</url> </mirror> </mirrors>
Maven 中央倉庫地址：
1. http://www.sonatype.org/nexus/
2. http://mvnrepository.com/ （本人推薦倉庫）
3. http://repo1.maven.org/maven2
解決方法：
1.找到maven庫目錄，進入：~\.m2\repository\org\apache\maven\plugins\maven-compiler-plugin\3.1
2.若2.7.1目錄下只有，"maven-compiler-plugin-3.1.pom.lastUpdated" 則需要到http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-compiler-plugin/3.1/，把里面的文件下載下來放到2.7.1，如果該倉庫中沒有，那么可以去http://search.maven.org/這個地方下載下來，然后放置到對應的本地倉庫中
3.刪除2.7.1下的maven-compiler-plugin-3.1.pom.lastUpdated文件。
4.項目右鍵-->maven-->Update Dependencies
如果以上方法還是無法解決該問題：
1.打開settings.xml，嘗試換個mirror鏡像或者干脆采用默認的倉庫,即注釋掉
