Settings for SSL debugging in Java

Purpose

As the subject says, it is a memorandum of setting when SSL debugging with Java.

Setting method

Set the property value of javax.net.debug to  Ľall or ssl` in the Java startup options

When the startup option is not explicitly used in PaaS etc., the environment variable JAVA_OPTS is set to -Djavax.net.debug = all.

reference

https://docs.oracle.com/javase/jp/11/security/java-secure-socket-extension-jsse-reference-guide.html#GUID-31B7E142-B874-46E9-8DD0-4E18EC0EB2CF

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