# SSL Connectivity: Java 7 (Pre-u131)

### Problem <a href="#problem" id="problem"></a>

When running with the SeaLights Java agent, depending on the proxy and security setting, an SSL connection can be encountered when using java 7 with a version lower that 131.

### Cause  <a href="#cause" id="cause"></a>

This is due to TLS 1.2 not being added by default till java 7 version 131 (See <https://www.oracle.com/technetwork/java/javase/7u131-relnotes-3338543.html>)

### Solution <a href="#solution" id="solution"></a>

The solution is to upgrade java to version 131 or later which will automatically support TL1.2, if you are using an older version of Java 7 then you can add the following JVM param: `-Dhttps.protocols=TLSv1.2`.

> **Add TLS v1.1 and v1.2 to the client list of default-enabled protocols**\
> TLSv1.2 and TLSv1.1 are now enabled by default on the TLS client end-points.\
> This is similar behavior to what already happens in JDK 8 releases.

In some cases there may be a cipher suite mismatch between the Java 7 environment and the TLS 1.2 supporting peer.\
Additional ciphers can be added using an extra JVM param e.g. "`-Dhttps.cipherSuites=TLS_RSA_WITH_AES_128_CBC_SHA256`"  (comma separated list if adding multiple ciphers)

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