add test case for issue

Signed-off-by: Nicklas Körtge <nicklas.koertge1@ibm.com>

mapper/src/main/java/com/ibm/mapper/model/algorithms/RSA.java

@@ -57,14 +57,12 @@ public final class RSA extends Algorithm implements KeyAgreement, Signature, Pub
     }
 
     public RSA(@NotNull DetectionLocation detectionLocation) {
-        super(NAME, PublicKeyEncryption.class, detectionLocation);
-        this.put(new Oid(OID, detectionLocation));
+        this(PublicKeyEncryption.class, detectionLocation);
     }
 
     public RSA(int keyLength, @Nonnull DetectionLocation detectionLocation) {
-        super(NAME, PublicKeyEncryption.class, detectionLocation);
+        this(detectionLocation);
         this.put(new KeyLength(keyLength, detectionLocation));
-        this.put(new Oid(OID, detectionLocation));
     }
 
     public RSA(

mapper/src/test/java/com/ibm/mapper/mapper/issues/Issue127Test.java

@@ -0,0 +1,39 @@
+/*
+ * SonarQube Cryptography Plugin
+ * Copyright (C) 2024 IBM
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.ibm.mapper.mapper.issues;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import com.ibm.mapper.model.INode;
+import com.ibm.mapper.model.algorithms.RSA;
+import com.ibm.mapper.utils.DetectionLocation;
+import java.util.List;
+import org.junit.Test;
+
+public class Issue127Test {
+
+    @Test
+    public void test() {
+        final RSA rsa =
+                new RSA(2048, new DetectionLocation("test.java", 1, 1, List.of(), () -> "Test"));
+        final INode rsaCopy = rsa.deepCopy();
+        assertThat(rsaCopy).isInstanceOf(RSA.class);
+    }
+}