Auto Reset language Level 5 with Java complier 1.5

Intellij idea new Maven project, always default language level 5 and Java Compiler 1.5.

Here are two ways to modify:

1. Manual modification:

• 　　Java Compiler 1.5

Error:Error:java:Compilation failed:internal java compiler Error

　　　　How to resolve: Target bytecode Version = 1.8, Java Compiler, File--Settings

• 　　Language Level 5

Error:Error:java: lambda expression is not supported in-source 1.5 (use-source 8 or later to enable lambda expression)

　　　　Workaround: File, Project Structure, Language level:8-lambdas,type annotations etc.

• Manual modification Defects: Language Level 5 and Java Compiler 1.5 are automatically reset each time the MAVEN project's Pom.xml is updated.

2. Use the plugin to automatically modify:

Add the plugin under the <build> tab under the Pom.xml of the MAVEN project, and modify the language level and Java compiler to the specified version (this example specifies 8).

  <Build>    <Plugins>      <plugin>        <groupId>Org.apache.maven.plugins</groupId>        <Artifactid>Maven-compiler-plugin</Artifactid>        <version>3.7.0</version>        <Configuration>          <!--Modify language level -          <Source>8</Source>          <!--Modify Java Compiler -          <Target>8</Target>        </Configuration>      </plugin>    </Plugins>  </Build></Project>

　

Auto Reset language Level 5 with Java complier 1.5