Java项目在本机运行正常，部署到Linux服务器报Java.security.ProviderException的错误。
错误如下：
javax.NET.ssl.SSLException: Java.security.ProviderException: java.security.KeyException
at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1916)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1874)
at sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1857)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1378)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket (SSLConnectionSocketFactory.java:275)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket (SSLConnectionSocketFactory.java:254)
at org.apache.http.impl.conn.HttpClientConnectionOperator.connect (HttpClientConnectionOperator.java:123)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect (PoolingHttpClientConnectionManager.java:318)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:363)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
解决办法：
升级更新nss之后即可解决：
yum upgrade nss
或者试试：一般是JDK不同厂商导致的，需要换成换成sun的jdk版本。检查linux上的是否为openjdk。
或者试试：一般是JDK不同厂商导致的，需要换成换成sun的jdk版本。检查linux上的是否为openjdk。
Ubuntu下同时安装OpenJDK和Oracle JDK：http://www.linuxdiyf.com/linux/28909.html
ubuntu下删除openjdk，改用sun jdk：http://www.linuxdiyf.com/linux/15390.html