Use effectively final local variable in lambda expression

spring-oxm/src/main/java/org/springframework/oxm/jaxb/Jaxb2Marshaller.java

@@ -579,9 +579,10 @@ public class Jaxb2Marshaller implements MimeMarshaller, MimeUnmarshaller, Generi
 		XMLReader xmlReader = org.xml.sax.helpers.XMLReaderFactory.createXMLReader();
 		xmlReader.setFeature("http://xml.org/sax/features/namespace-prefixes", true);
 		for (int i = 0; i < resources.length; i++) {
-			Assert.notNull(resources[i], "Resource is null");
-			Assert.isTrue(resources[i].exists(), () -> "Resource " + resources[i] + " does not exist");
-			InputSource inputSource = SaxResourceUtils.createInputSource(resources[i]);
+			Resource currentResource = resources[i];
+			Assert.notNull(currentResource, "Resource is null");
+			Assert.isTrue(currentResource.exists(), () -> "Resource " + currentResource + " does not exist");
+			InputSource inputSource = SaxResourceUtils.createInputSource(currentResource);
 			schemaSources[i] = new SAXSource(xmlReader, inputSource);
 		}
 		SchemaFactory schemaFactory = SchemaFactory.newInstance(schemaLanguage);