終極解決方案：java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

報錯資訊

javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

原因：

　　JDK7/8後新增了安全機制，導致這個問題出現

解決方案：

方案一：

 把$JAVA_HOME/jre/lib/security/java.security 檔案裡的jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048，改成jdk.certpath.disabledAlgorithms=，去掉 "MD2, DSA, RSA keySize < 2048"

方案二：方案一沒有用再用方案二

把$JAVA_HOME/jre/lib/security/java.security 檔案裡

jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
jdk.tls.disabledAlgorithms=SSLv3, RC4, MD5withRSA, DH keySize < 768

 改為

jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024
jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768