Fully drop 9.1 support

JRuby API signatures that do not pass ThreadContext are starting to
be removed in JRuby 10.1, and the context versions do not exist
until 9.2. JRuby 9.1 is also nearly a decade old and has been EOL
for at least half as long.

Author: headius

Mavenfile

@@ -82,14 +82,14 @@ plugin :clean do
                  'failOnError' =>  'false' )
 end
 
-jar 'org.jruby:jruby-core', '9.1.11.0', :scope => :provided
+jar 'org.jruby:jruby-core', '9.2.19.0', :scope => :provided
 # for invoker generated classes we need to add javax.annotation when on Java > 8
 jar 'javax.annotation:javax.annotation-api', '1.3.1', :scope => :compile
 jar 'junit:junit', '[4.13.1,)', :scope => :test
 
 # NOTE: to build on Java 11 - installing gems fails (due old jossl) with:
 #  load error: jopenssl/load -- java.lang.StringIndexOutOfBoundsException
-MVN_JRUBY_VERSION = ENV_JAVA['java.version'].to_i >= 9 ? '9.2.19.0' : '9.1.17.0'
+MVN_JRUBY_VERSION = '9.2.19.0'
 
 jruby_plugin! :gem do
   # when installing dependent gems we want to use the built in openssl not the one from this lib directory

pom.xml

@@ -97,7 +97,7 @@ DO NOT MODIFY - GENERATED CODE
     <dependency>
       <groupId>org.jruby</groupId>
       <artifactId>jruby-core</artifactId>
-      <version>9.1.11.0</version>
+      <version>9.2.19.0</version>
       <scope>provided</scope>
     </dependency>
     <dependency>