无法执行目标 org.apache.maven.plugins:maven-compiler-plugin:2.3.2

Question

我知道这是因为我的 ~/.m2/ 存储库中的一个或多个 jar 文件已损坏，但我实际上无法确定哪些 jar 文件已损坏或哪些 jar，我需要删除并重新-下载。

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-                 plugin:2.3.2:compile (default-compile) on project CRUDWebAppMavenized: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile failed: An API incompatibility was encountered while executing org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile: java.lang.UnsupportedClassVersionError: com/sun/tools/javac/Main :     Unsupported major.minor version 52.0
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>org.apache.maven.plugins:maven-compiler-plugin:2.3.2
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/C:/Users/hp/.m2/repository/org/apache/maven/plugins/maven-   compiler-plugin/2.3.2/maven-compiler-plugin-2.3.2.jar
[ERROR] urls[1] = file:/C:/Users/hp/.m2/repository/org/codehaus/plexus/plexus-utils/2.0.5/plexus-utils-2.0.5.jar
[ERROR] urls[2] = file:/C:/Users/hp/.m2/repository/org/codehaus/plexus/plexus-compiler-api/1.8.1/plexus-compiler-api-1.8.1.jar
[ERROR] urls[3] = file:/C:/Users/hp/.m2/repository/org/codehaus/plexus/plexus-compiler-   manager/1.8.1/plexus-compiler-manager-1.8.1.jar
[ERROR] urls[4] = file:/C:/Users/hp/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/1.8.1/plexus-compiler-javac-1.8.1.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]