diff --git a/net-security/src/main/java/org/xbib/net/security/PrivateKeyReader.java b/net-security/src/main/java/org/xbib/net/security/PrivateKeyReader.java
index dbacce6..442b376 100644
--- a/net-security/src/main/java/org/xbib/net/security/PrivateKeyReader.java
+++ b/net-security/src/main/java/org/xbib/net/security/PrivateKeyReader.java
@@ -108,26 +108,32 @@ public class PrivateKeyReader {
         };
         PrivateKey privateKey = null;
         PublicKey publicKey = null;
-        if (keySpec instanceof DSAPrivateKeySpec) {
-            KeyFactory keyFactory = KeyFactory.getInstance("DSA");
-            privateKey = keyFactory.generatePrivate(keySpec);
-            publicKey = keyFactory.generatePublic(getDSAPublicKeySpec(privateKey));
-        } else if (keySpec instanceof EncodedKeySpec) {
-            KeyFactory keyFactory = KeyFactory.getInstance("RSA");
-            privateKey = keyFactory.generatePrivate(keySpec);
-            publicKey = keyFactory.generatePublic(getRSAPublicKeySpec(keyFactory, privateKey));
-        } else if (keySpec instanceof RSAPrivateCrtKeySpec) {
-            KeyFactory keyFactory = KeyFactory.getInstance("RSA");
-            privateKey = keyFactory.generatePrivate(keySpec);
-            publicKey = keyFactory.generatePublic(getRSAPublicKeySpec(keyFactory, privateKey));
-        } else if (keySpec instanceof ECPrivateKeySpec) {
-            KeyFactory keyFactory = KeyFactory.getInstance("EC");
-            privateKey = keyFactory.generatePrivate(keySpec);
-            publicKey = keyFactory.generatePublic(getECPublicKeySpec(privateKey));
-        } else {
-            KeyFactory keyFactory = KeyFactory.getInstance("EdDSA");
-            privateKey = keyFactory.generatePrivate(keySpec);
-            publicKey = keyFactory.generatePublic(getEdECPublicKeySpec(privateKey, rawKey.raw));
+        switch (keySpec) {
+            case DSAPrivateKeySpec dsaPrivateKeySpec -> {
+                KeyFactory keyFactory = KeyFactory.getInstance("DSA");
+                privateKey = keyFactory.generatePrivate(keySpec);
+                publicKey = keyFactory.generatePublic(getDSAPublicKeySpec(privateKey));
+            }
+            case EncodedKeySpec encodedKeySpec -> {
+                KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+                privateKey = keyFactory.generatePrivate(keySpec);
+                publicKey = keyFactory.generatePublic(getRSAPublicKeySpec(keyFactory, privateKey));
+            }
+            case RSAPrivateCrtKeySpec rsaPrivateCrtKeySpec -> {
+                KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+                privateKey = keyFactory.generatePrivate(keySpec);
+                publicKey = keyFactory.generatePublic(getRSAPublicKeySpec(keyFactory, privateKey));
+            }
+            case ECPrivateKeySpec ecPrivateKeySpec -> {
+                KeyFactory keyFactory = KeyFactory.getInstance("EC");
+                privateKey = keyFactory.generatePrivate(keySpec);
+                publicKey = keyFactory.generatePublic(getECPublicKeySpec(privateKey));
+            }
+            case null, default -> {
+                KeyFactory keyFactory = KeyFactory.getInstance("EdDSA");
+                privateKey = keyFactory.generatePrivate(keySpec);
+                publicKey = keyFactory.generatePublic(getEdECPublicKeySpec(privateKey, rawKey.raw));
+            }
         }
         if (publicKey != null) {
             return new KeyPair(publicKey, privateKey);
@@ -238,7 +244,6 @@ public class PrivateKeyReader {
         return new DSAPublicKeySpec(y, p, q, g);
     }
 
-
     /**
      * Read EC private key in PKCS#1 format.
      *
diff --git a/net-security/src/test/java/org/xbib/net/security/test/PrivateKeyReaderTest.java b/net-security/src/test/java/org/xbib/net/security/test/PrivateKeyReaderTest.java
index 0d51eff..21ccf31 100644
--- a/net-security/src/test/java/org/xbib/net/security/test/PrivateKeyReaderTest.java
+++ b/net-security/src/test/java/org/xbib/net/security/test/PrivateKeyReaderTest.java
@@ -119,16 +119,6 @@ public class PrivateKeyReaderTest {
         assertEquals("RSA", privateKey.getAlgorithm());
     }
 
-    @Test
-    public void testKey() throws Exception {
-        InputStream inputStream = getClass().getResourceAsStream("/test.key");
-        if (inputStream != null) {
-            PrivateKeyReader privateKeyReader = new PrivateKeyReader();
-            PrivateKey privateKey = privateKeyReader.readPrivateKey(inputStream, null);
-            assertEquals("PKCS#8", privateKey.getFormat());
-        }
-    }
-
     private static void match(String algo,
                        PrivateKey privateKey,
                        PublicKey publicKey) throws Exception {
@@ -140,7 +130,7 @@ public class PrivateKeyReaderTest {
         signature.initVerify(publicKey);
         signature.update(message.getBytes(StandardCharsets.UTF_8));
         assertTrue(signature.verify(payload));
-        logger.log(Level.INFO, "verified " + algo);
+        logger.log(Level.INFO, "verified using " + algo);
 
     }