. cnssc install reghdfe
PKIX path validation failed: java.security.cert.CertPathValidatorException: validity check failed
r(5100);
出现上面问题，cnssc已经安装好了的，但是无法调用它安装其他的，希望能有解答。
r(5100)显示error . . . . . . . . . . . . . . . . . . . . . . . . Return code 5100
        a Java runtime exception occurred
        This indicates a Java runtime exception occurred inside a
        Java program.  Typically exceptions should be caught by the
        Java program and handled in a graceful way.  This error
        indicates the exception was not handled by the program and
        therefore it is handle by the system.
但是怎么去设置系统才能解决了。