No compiler is provided in this environment.Perhaps you are running on a JRE rather than a JDK？

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project consumerBanking: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR]
[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/MojoFailureException

解决方案最快一种，如下：

1. 找到你的JDK的这个路径，类似这个 C:Program FilesJavajdk1.8.0_291binjavac.exe

2. 在pom.xml中添加如下：

   
       
           
               maven-compiler-plugin
               3.1
               
                   true
                   C:Program FilesJavajdk1.8.0_291binjavac.exe 
               
           
       
   
   

3. 再运行一下mvn clean package，就ok了。