Add ojdbc17, ojdbc11 and ojdbc8 to JDBC driver search list

The driver search only looked for ojdbc7.jar and ojdbc6.jar on Java 7+.
Modern Oracle JDBC drivers use ojdbc17.jar (Java 17+), ojdbc11.jar
(Java 11+) and ojdbc8.jar (Java 8+). Build the search list based on
the running Java major version so that only compatible jars are tried,
in priority order preferring the newest driver. Older drivers are still
searched as fallbacks since they run on newer Java versions.

Ref: https://www.oracle.com/database/technologies/appdev/jdbc-downloads.html

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: yahonda

README.md

@@ -154,7 +154,7 @@ In addition install either ruby-oci8 (for MRI/YARV) or copy Oracle JDBC driver t
 If you are using MRI Ruby implementation then you need to install ruby-oci8 gem (version 2.1 or higher)
 as well as Oracle client, e.g. [Oracle Instant Client](http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html).
 
-If you are using JRuby then you need to download latest [Oracle JDBC driver](http://www.oracle.com/technetwork/database/enterprise-edition/jdbc-112010-090769.html) - either ojdbc7.jar for Java 8 and 7, ojdbc6.jar for Java 6, 7, 8 or ojdbc5.jar for Java 5. You can refer [the support matrix](http://www.oracle.com/technetwork/database/enterprise-edition/jdbc-faq-090281.html#01_03) for details.
+If you are using JRuby then you need to download latest [Oracle JDBC driver](https://www.oracle.com/database/technologies/appdev/jdbc-downloads.html) - ojdbc17.jar for Java 17+, ojdbc11.jar for Java 11+, or ojdbc8.jar for Java 8+.
 
 And copy this file to one of these locations. JDBC driver will be searched in this order:
 

lib/plsql/jdbc_connection.rb

@@ -2,21 +2,23 @@
   require "java"
   require "jruby"
 
-  # ojdbc6.jar or ojdbc5.jar file should be in JRUBY_HOME/lib or should be in ENV['PATH'] or load path
+  # Oracle JDBC driver jar should be in JRUBY_HOME/lib or should be in ENV['PATH'] or load path
 
   java_version = java.lang.System.getProperty("java.version")
-  ojdbc_jars = if java_version =~ /^1.5/
-    %w(ojdbc5.jar)
-  elsif java_version =~ /^1.6/
-    %w(ojdbc6.jar)
-  elsif java_version >= "1.7"
-    # Oracle 11g client ojdbc6.jar is also compatible with Java 1.7
-    # Oracle 12c client provides new ojdbc7.jar
-    %w(ojdbc7.jar ojdbc6.jar)
+  java_major = if java_version =~ /^1\.(\d+)/
+    $1.to_i
   else
-    []
+    java_version.to_i
   end
 
+  ojdbc_jars = []
+  ojdbc_jars << "ojdbc17.jar" if java_major >= 17
+  ojdbc_jars << "ojdbc11.jar" if java_major >= 11
+  ojdbc_jars << "ojdbc8.jar"  if java_major >= 8
+  ojdbc_jars << "ojdbc7.jar"  if java_major >= 7
+  ojdbc_jars << "ojdbc6.jar"  if java_major >= 6
+  ojdbc_jars << "ojdbc5.jar"  if java_major == 5
+
   if ENV_JAVA["java.class.path"] !~ Regexp.new(ojdbc_jars.join("|"))
     # On Unix environment variable should be PATH, on Windows it is sometimes Path
     env_path = (ENV["PATH"] || ENV["Path"] || "").split(File::PATH_SEPARATOR)