#158: Improve 'GPX.Reader' class.

Author: jenetics

jpx/src/main/java/io/jenetics/jpx/GPX.java

@@ -1190,7 +1190,14 @@ public GPX read(final Source source)
 					.xmlInputFactory()
 					.createXMLStreamReader(source);
 
-				try (var input = new XMLStreamReaderAdapter(reader)) {
+				final var closeable = new AutoCloseable() {
+					@Override
+					public void close() throws XMLStreamException {
+						reader.close();
+					}
+				};
+
+				try (closeable; var input = new XMLStreamReaderAdapter(reader)) {
 					if (input.hasNext()) {
 						input.next();