/bin/sh: 1: mvn: not found about db-gpt HOT 7 CLOSED

def start_jvm(self):
    try:
        # 如果已经启动jvm的虚拟环境则跳过；否则进入else，启动java的虚拟环境
        if jpype.isJVMStarted():
            return True
        else:
            base_dir = os.path.abspath(os.curdir)
            local_lib_dir = os.path.join(base_dir+'/multiagents/tools/query_advisor/query_rewrite/', 'java_jar')
            _ = os.popen(
                'mvn dependency:build-classpath -Dmdep.outputFile=classpath.txt').read()
            classpath = open(
                os.path.join(
                    base_dir,
                    'classpath.txt'),
                'r').readline().split(':')
            classpath.extend([os.path.join(local_lib_dir, jar)
                              for jar in os.listdir(local_lib_dir)])
            jp.startJVM(jp.getDefaultJVMPath(), classpath=classpath)
            print("系统启动java的jvm虚拟环境成功")
            return True
    except Exception as e:
        print("系统启动java的jvm虚拟环境出现错误,错误原因:" + str(e))
        return False