Maven打War包可能出现的问题

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.10.1:compile (default-compile) on project community: Compilation failure
[ERROR] /opt/community/src/main/java/com/nowcoder/community/service/DiscussPostService.java:[3,42] cannot access com.github.benmanes.caffeine.cache.CacheLoader
[ERROR]   bad class file: /root/.m2/repository/com/github/ben-manes/caffeine/caffeine/3.1.1/caffeine-3.1.1.jar(com/github/benmanes/caffeine/cache/CacheLoader.class)

原因： com.github.benmanes.caffeine版本过高，，一般出现这种类似问题的都需要降版本

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project community: Fatal error compiling: invalid target release: 11 -> [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/MojoExecutionException

 可能原因：

1.pom.xml中的java版本过高，跟服务器不匹配

2.原因2：maven打包错误： Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources_夜中听雪的博客-CSDN博客

mvn命令打包出现Execution exception: Java heap space问题

在maven/bin/mvn文件中设置