Failed to execute goal org.codehaus.mojo:exec-maven-plugin:3.1.0:exec (default-cli) on project Spring_ioc_anno: Command execution failed.

As an AI language model, I do not have access to the full context of your error message. However, in general, this error message suggests that the Maven plugin "exec-maven-plugin" failed to execute a command specified in the project's configuration. The reason for the failure could be due to various factors, such as incorrect command syntax, missing dependencies, or insufficient permissions. You may want to check the plugin's documentation and your project's configuration to identify the root cause of the issue.