致命的，handshake_failure javax.net.ssl.SSLHandshakeException

Question

我正在尝试使用HttpApiClient连接到WebService客户端。我正在指定

truststore = <path to Java cacerts>
truststore password = <default pass>
keystore = <custom JKS properties with all certs> 
keystore password = <default pass>

当我使用Java调试SSL时，我甚至不会直接看到“服务器Hello消息”致命的握手错误，如下所示：

http-bio-8080-exec-9, WRITE: TLSv1 Handshake, length = 122
http-bio-8080-exec-9, READ: TLSv1 Alert, length = 2
http-bio-8080-exec-9
, RECV TLSv1 ALERT:  
fatal, 
handshake_failure
http-bio-8080-exec-9, called closeSocket()
http-bio-8080-exec-9, handling exception: javax.net.ssl.SSLHandshakeException: 
Received fatal alert: handshake_failure
http-bio-8080-exec-9, called close()
http-bio-8080-exec-9, called closeInternal(true)

我无法进一步调试，因为没有关于错误的线索。错误消息没有描述任何内容。我已经仔细检查过所有证书。关于如何调试这个/缺少什么的任何想法？