UnsupportedClassVersionError: org/apache/maven/plugin/compiler/TestCompilerMojo

Question

I am new to Maven. On Eclipse I am getting following error in pom.xml :-

"Multiple annotations found at this line:

• CoreException: Could not get the value for parameter compilerId for plugin execution default-testCompile: TypeNotPresentException: Type org.apache.maven.plugin.compiler.TestCompilerMojo not present: UnsupportedClassVersionError: org/apache/maven/plugin/compiler/TestCompilerMojo : Unsupported major.minor version 51.0

• Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin:3.7.0:testCompile (execution: default-testCompile, phase: test-compile)

• maven-enforcer-plugin (goal ""enforce"") is ignored by m2e.

I have upgraded from Java 1.6 to Java 1.8. So I also started using new maven 3.5.2. And updated maven-compiler-plugin from 2.3.2 to 3.7.0 in super-pom. Kindly help in debugging.

pom.xml where I am getting error: tag

  <parent>
    <groupId>com.abcdef.xyz</groupId>
    <artifactId>dev-main</artifactId>
    <version>8.1.1-SNAPSHOT</version>
  </parent>

Note: I am able to build successfully on git bash. The error is only shown in pom.xml in Eclipse.

Answer 1

The error seems to be due to older version of m2e eclipse plugin.You can upgrade the m2e plugin or move to neon(if already not moved) as you are on Java 8 and Neon is suitable for it.