Fix try-with-resources for Java 8
diff --git a/core/camel-api/src/main/java/org/apache/camel/support/jsse/KeyStoreParameters.java b/core/camel-api/src/main/java/org/apache/camel/support/jsse/KeyStoreParameters.java
index 0047690..d45feba 100644
--- a/core/camel-api/src/main/java/org/apache/camel/support/jsse/KeyStoreParameters.java
+++ b/core/camel-api/src/main/java/org/apache/camel/support/jsse/KeyStoreParameters.java
@@ -189,11 +189,10 @@
         if (this.resource == null) {
             ks.load(null, ksPassword);
         } else {
-            InputStream is = this.resolveResource(this.parsePropertyValue(this.resource));
-            if (is == null) {
-                LOG.warn("No keystore could be found at {}.", this.resource);
-            } else {
-                try (is) {
+            try (InputStream is = this.resolveResource(this.parsePropertyValue(this.resource))) {
+                if (is == null) {
+                    LOG.warn("No keystore could be found at {}.", this.resource);
+                } else {
                     ks.load(is, ksPassword);
                 }
             }