support dup for X.509 Attribute/Extension

Author: kares

src/main/java/org/jruby/ext/openssl/X509Attribute.java

@@ -127,6 +127,18 @@ public IRubyObject initialize(final ThreadContext context, final IRubyObject[] a
         return this;
     }
 
+    @Override
+    public IRubyObject initialize_copy(final IRubyObject original) {
+        if (this == original) return this;
+        checkFrozen();
+
+        final X509Attribute that = (X509Attribute) original;
+        this.value = that.value == null ? null : that.value.dup();
+        this.oid = that.oid;
+        this.objectId = that.objectId;
+        return this;
+    }
+
     @JRubyMethod
     public IRubyObject to_der(final ThreadContext context) {
         final byte[] bytes;

src/main/java/org/jruby/ext/openssl/X509Extension.java

@@ -280,6 +280,18 @@ else if ( args.length > 1 ) {
         return this;
     }
 
+    @Override
+    public IRubyObject initialize_copy(final IRubyObject original) {
+        if (this == original) return this;
+        checkFrozen();
+
+        final X509Extension that = (X509Extension) original;
+        this.value = that.value;
+        this.objectID = that.objectID;
+        this.critical = that.critical;
+        return this;
+    }
+
     @JRubyMethod
     public IRubyObject oid(final ThreadContext context) {
         return context.runtime.newString( oidSym(context.runtime) );