Maxim Egorov created HTTPCLIENT-2134:
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Summary: HttpClient doesnt reuse TLS 1.2 Session
Key: HTTPCLIENT-2134
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2134
Project: HttpComponents HttpClient
Issue Type: Bug
Components: HttpClient (classic)
Affects Versions: 5.0.3, 4.5.13
Reporter: Maxim Egorov
Attachments: TestApacheHttpClientApp.java, handshake.log
To reproduce run on java 11+:
java -cp ... -Djavax.net.debug=ssl:handshake TestApacheHttpClientApp
As you can see from handshake.log file HttpClient always create new tls session.
The root of problem is support of Extended Master Key Extension in
[https://github.com/openjdk/jdk/blob/jdk-11+28/src/java.base/share/classes/sun/security/ssl/ClientHello.java#L497.]
The standard jdk HttpURLConnection doesn't be affected this issues because of
it sets chc.sslConfig.identificationProtocol equals to HTTPS by default
[https://github.com/openjdk/jdk/blob/jdk-11%2B28/src/java.base/share/classes/sun/net/www/protocol/https/HttpsClient.java#L560.]
I tried to repeat the same trick (The commented code), but due to the bugs of
JDK [https://bugs.openjdk.java.net/browse/JDK-8253368] and may be incorrect
implementation of method BHttpConnectionBase.close it doesn't work.
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