[feat] support to_java conversion for CRL

Author: kares

src/main/java/org/jruby/ext/openssl/X509CRL.java

@@ -709,6 +709,14 @@ public IRubyObject op_equal(ThreadContext context, IRubyObject obj) {
         return context.runtime.getFalse();
     }
 
+    @Override
+    public Object toJava(Class target) {
+        if (target.isAssignableFrom(java.security.cert.X509CRL.class)) {
+            return getCRL();
+        }
+        return super.toJava(target);
+    }
+
     private static RubyClass _CRLError(final Ruby runtime) {
         return _X509(runtime).getClass("CRLError");
     }

src/test/ruby/x509/test_x509crl.rb

@@ -164,6 +164,12 @@ def test_extension
     assert_equal(false, exts[2].critical?)
   end
 
+  def test_to_java
+    crl = OpenSSL::X509::CRL.new File.read(File.expand_path('../revoked.crl', __FILE__))
+    assert_kind_of java.security.cert.X509CRL, crl.to_java
+    assert_same crl.to_java, crl.to_java(java.security.cert.X509CRL)
+  end
+
   private
 
   def get_subject_key_id(cert)