[fix] compat with JRuby < 9.2.10 after API change (#348)

`default_value_set` was added in JRuby 9.2.10.0,
use dynamic dispatch for backward compatibility.

Also lower compile-time dependency to jruby-core 9.2.0.0 to catch
similar binary incompatibilities at build time.

Author: kares

Mavenfile

@@ -82,7 +82,7 @@ plugin :clean do
                  'failOnError' =>  'false' )
 end
 
-jar 'org.jruby:jruby-core', '9.2.19.0', :scope => :provided
+jar 'org.jruby:jruby-core', '9.2.0.0', :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

pom.xml

@@ -97,7 +97,7 @@ DO NOT MODIFY - GENERATED CODE
     <dependency>
       <groupId>org.jruby</groupId>
       <artifactId>jruby-core</artifactId>
-      <version>9.2.19.0</version>
+      <version>9.2.0.0</version>
       <scope>provided</scope>
     </dependency>
     <dependency>

src/main/java/org/jruby/ext/openssl/X509Name.java

@@ -124,7 +124,9 @@ static void createX509Name(final Ruby runtime, final RubyModule X509, final Ruby
 
         final ThreadContext context = runtime.getCurrentContext();
         final RubyHash hash = RubyHash.newHash(runtime);
-        hash.default_value_set(context, UTF8_STRING);
+        // NOTE: using dynamic dispatch for compat with JRuby < 9.2.10
+        // (default_value_set(ThreadContext, IRubyObject) was added in 9.2.10.0)
+        hash.callMethod(context, "default=", UTF8_STRING);
         hash.op_aset(context, newString(runtime, new byte[] { 'C' }), PRINTABLE_STRING);
         final byte[] countryName = { 'c','o','u','n','t','r','y','N','a','m','e' };
         hash.op_aset(context, newString(runtime, countryName), PRINTABLE_STRING);