微信退款请求加载证书，报错java.io.IOException: toDerInput，如何排查？
java.io.IOException: toDerInputStream rejects tag type 99 at sun.security.util.DerValue.toDerInputStream(DerValue.java:874) ~[?:1.8.0_271] at sun.security.pkcs12.PKCS12KeyStore.engineLoad(PKCS12KeyStore.java:1942) ~[?:1.8.0_271] at java.security.KeyStore.load(KeyStore.java:1445) ~[?:1.8.0_271] ，报错导致实际并未发起支付
