CODEWITHSUNDEEP
sslapache-httpclient-4.x
user1238353
user1238353

Reputation: 179

HttpClient 4.5.2 - SSL cert issue

I am using httpclient 4.5.2 to call proxy server.

HttpHost proxy = new HttpHost(proxyHost, proxyPort, https);
HttpHost target = new HttpHost(ip, 443, "https");
HttpPost httppost = new HttpPost(url);
CloseableHttpResponse response = httpclient.execute(target, httppost );

Below is the error i get:-

 javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
        at sun.security.ssl.InputRecord.handleUnknownRecord(InputRecord.java:671)
        at sun.security.ssl.InputRecord.read(InputRecord.java:504)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:927)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1323)
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)
        at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141)
        at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
        at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:388)
        at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
        at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
        at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
        at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
        at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:117)

May I know this error is related to cert problem? Because I already add the cert to truststore.

Upvotes: 1

Views: 1313

Answers (1)

Steffen Ullrich
Steffen Ullrich

Reputation: 123260

javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?

May I know this error is related to cert problem? Because I already add the cert to truststore.

This is not a problem of a certificate. The server you access does not do a proper TLS handshake.

I am using httpclient 4.5.2 to call proxy server.

HTTPS over a HTTP proxy server starts with a plain text HTTP CONNECT request which then established a tunnel. Only after this tunnel is established the TLS handshake is done with the original target server.

Upvotes: 1

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