[docs] update README compatibility, refresh examples

- 0.15.x supports JRuby 9.2 - 10.0, Java 8 - 25, BC 1.78 - 1.83
- Remove defunct Travis CI badge
- Update Maven Central URL (http -> https, new domain)
- Update example JRuby/BC versions to current
- (c) 2026

Author: kares

README.md

@@ -3,10 +3,10 @@
 [JRuby-OpenSSL](https://github.com/jruby/jruby-openssl) is an add-on gem for
 [JRuby](https://www.jruby.org/) that emulates the Ruby OpenSSL native library.
 
-Under the hood uses the [Bouncy Castle Crypto APIs](https://www.bouncycastle.org/java.html).
+Under the hood it uses the [Bouncy Castle Crypto APIs](https://www.bouncycastle.org/java.html).
 
-Each jruby-openssl gem release includes a certain version, usually the latest available, 
-of the library (namely BC Provider and PKIX/CMS/EAC/PKCS/OCSP/TSP/OPENSSL jars).
+Each jruby-openssl gem release includes the Bouncy Castle library (BC Provider and
+PKIX/CMS/EAC/PKCS/OCSP/TSP/OPENSSL jars), usually the latest available version.
 
 Please report bugs and incompatibilities (preferably with test-cases) to either
 the JRuby [mailing list][1] or the [bug tracker][2].
@@ -28,48 +28,46 @@ the JRuby [mailing list][1] or the [bug tracker][2].
 | ~>0.12.x      | 9.1.x-9.3.x  |  Java 8-15 |    1.65-1.68 |
 | ~>0.13.x      | 9.1.x-9.4.x  |  Java 8-17 |    1.68-1.69 |
 | ~>0.14.x      | 9.1.x-9.4.x  |  Java 8-21 |    1.71-1.74 |
-| ~>0.15.x      | 9.2.x-9.4.x  |  Java 8-21 |    1.76-1.79 |
+| ~>0.15.x      | 9.2.x-10.0.x |  Java 8-25 |    1.78-1.83 |
 
-NOTE: backwards JRuby compatibility was not handled for versions <= **0.9.6** 
+NOTE: backwards JRuby compatibility was not handled for versions <= **0.9.6**
 
 ## Security
 
-JRuby-OpenSSL is an essential part of [JRuby](https://www.jruby.org/), please report security vulnerabilities to 
+JRuby-OpenSSL is an essential part of [JRuby](https://www.jruby.org/), please report security vulnerabilities to
 `security@jruby.org` as detailed on JRuby's [security page](https://www.jruby.org/security) or using [GitHub][0].
- 
-Please note that most OpenSSL vulnerabilities do not effect JRuby since its not using 
-any of OpenSSL's C code, only Ruby parts (*.rb) are the same as in MRI's OpenSSL library. 
 
-## Testing
+Please note that most OpenSSL vulnerabilities do not affect JRuby since it's not using
+any of OpenSSL's C code, only Ruby parts (*.rb) are the same as in MRI's OpenSSL library.
 
-[![Build Status][0]](http://travis-ci.org/jruby/jruby-openssl)
+## Testing
 
     rake jar:all # creates pom.xml and generates jopenssl.jar under lib
     mvn test
 
-will run (junit as well as ruby) tests and a some ruby tests against the default
-jruby version. to pick a different JRuby version run
+This will run (JUnit as well as Ruby) tests against the default JRuby version.
+To pick a different JRuby version:
 
-    mvn test -Djruby.versions=9.2.8.0
+    mvn test -Djruby.versions=9.4.14.0
 
-for running integration-tests the gem will be first installed and then the same
-tests run for each possible bouncy-castle version (see [listing][3]), run with
+For running integration tests the gem will be installed first and the same
+tests run for each supported Bouncy Castle version (see [listing][3]):
 
-    mvn verify -P test-9.2.9.0,test-9.1.17.0
+    mvn verify -P test-9.4.14.0,test-9.2.21.0
 
-or pick a bouncy-castle version
+Or pick a specific Bouncy Castle version:
 
-    mvn verify -P test-9.2.9.0 -Dbc.versions=1.60
+    mvn verify -P test-9.4.14.0 -Dbc.versions=1.78
 
-NOTE: you can pick any jruby version which is on [central][4] or on [ci.jruby][5]
+NOTE: you can pick any JRuby version which is on [Maven Central][4] or on [ci.jruby][5]
 
 ## License
 
-(c) 2009-2024 JRuby distributed under EPL 1.0/GPL 2.0/LGPL 2.1
+(c) 2009-2026 JRuby distributed under EPL 1.0/GPL 2.0/LGPL 2.1
 
 [0]: https://github.com/jruby/jruby-openssl/security
 [1]: https://github.com/jruby/jruby/wiki/MailingLists
 [2]: https://github.com/jruby/jruby-openssl/issues/new
 [3]: https://github.com/jruby/jruby-openssl/tree/master/integration
-[4]: http://central.maven.org/maven2/org/jruby/
+[4]: https://repo1.maven.org/maven2/org/jruby/
 [5]: https://www.jruby.org/nightly