diff --git a/nifi/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/PostHTTP.java b/nifi/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/PostHTTP.java
index fd486b0efd..f8a33bc8e7 100644
--- a/nifi/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/PostHTTP.java
+++ b/nifi/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/PostHTTP.java
@@ -68,6 +68,7 @@ import org.apache.http.conn.HttpClientConnectionManager;
 import org.apache.http.conn.ManagedHttpClientConnection;
 import org.apache.http.conn.socket.ConnectionSocketFactory;
 import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
+import org.apache.http.conn.ssl.SSLContextBuilder;
 import org.apache.http.conn.ssl.SSLContexts;
 import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
 import org.apache.http.entity.ContentProducer;
@@ -352,21 +353,26 @@ public class PostHTTP extends AbstractProcessor {
     private SSLContext createSSLContext(final SSLContextService service) throws KeyStoreException, IOException, NoSuchAlgorithmException, 
         CertificateException, KeyManagementException, UnrecoverableKeyException 
     {
-        final KeyStore truststore  = KeyStore.getInstance(service.getTrustStoreType());
-        try (final InputStream in = new FileInputStream(new File(service.getTrustStoreFile()))) {
-            truststore.load(in, service.getTrustStorePassword().toCharArray());
+        SSLContextBuilder builder = SSLContexts.custom();
+        final String trustFilename = service.getTrustStoreFile();
+        if ( trustFilename != null ) {
+            final KeyStore truststore  = KeyStore.getInstance(service.getTrustStoreType());
+            try (final InputStream in = new FileInputStream(new File(service.getTrustStoreFile()))) {
+                truststore.load(in, service.getTrustStorePassword().toCharArray());
+            }
+            builder = builder.loadTrustMaterial(truststore, new TrustSelfSignedStrategy());
+        }
+
+        final String keyFilename = service.getKeyStoreFile();
+        if ( keyFilename != null ) {
+            final KeyStore keystore  = KeyStore.getInstance(service.getKeyStoreType());
+            try (final InputStream in = new FileInputStream(new File(service.getKeyStoreFile()))) {
+                keystore.load(in, service.getKeyStorePassword().toCharArray());
+            }
+            builder = builder.loadKeyMaterial(keystore, service.getKeyStorePassword().toCharArray());
         }
         
-        final KeyStore keystore  = KeyStore.getInstance(service.getKeyStoreType());
-        try (final InputStream in = new FileInputStream(new File(service.getKeyStoreFile()))) {
-            keystore.load(in, service.getKeyStorePassword().toCharArray());
-        }
-        
-        SSLContext sslContext = SSLContexts.custom()
-                .loadTrustMaterial(truststore, new TrustSelfSignedStrategy())
-                .loadKeyMaterial(keystore, service.getKeyStorePassword().toCharArray())
-                .build();
-        
+        SSLContext sslContext = builder.build();
         return sslContext;
     }