Don't load JNI when testing JNA

Temporary work-round for CRYPTO-175
Ideally need to change AbstractTest classes to be generic.

src/test/java/org/apache/commons/crypto/jna/AbstractCipherJnaStreamTest.java

@@ -82,4 +82,26 @@ public void testSkip() throws Exception {
 
         doSkipTest(CIPHER_OPENSSL_JNA, true);
     }
+
+    @Override
+    @Test
+    @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
+    public void testExceptions() throws Exception {
+        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        doExceptionTest(CIPHER_OPENSSL_JNA, baos, false);
+
+        doExceptionTest(CIPHER_OPENSSL_JNA, baos, true);
+    }
+
+    @Override
+    @Test
+    @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
+    public void testFieldGetters() throws Exception {
+        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        doFieldGetterTest(CIPHER_OPENSSL_JNA, baos, false);
+
+        doFieldGetterTest(CIPHER_OPENSSL_JNA, baos, true);
+    }
+
+
 }

src/test/java/org/apache/commons/crypto/jna/PositionedCryptoInputStreamJnaTest.java

@@ -31,6 +31,11 @@ public void init() {
         assumeTrue(OpenSslJna.isEnabled());
     }
 
+    @Test
+    @Override // Don't load JNI!
+    public void testJNI() throws Exception {
+    }
+
     @Test
     public void testCipher() throws Exception {
         testCipher(OpenSslJnaCipher.class.getName());