From 1936665ab1bc89ef7d8b6ee9c3d8ebe645c36e4c Mon Sep 17 00:00:00 2001
From: BonaBeavis <gordian.dziwis@gmail.com>
Date: Wed, 13 Feb 2019 17:46:04 +0100
Subject: [PATCH] Make parse function synchronized

---
 .../org/aksw/jena_sparql_api/sparql/ext/xml/RDFDatatypeXml.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/jena-sparql-api-sparql-ext/src/main/java/org/aksw/jena_sparql_api/sparql/ext/xml/RDFDatatypeXml.java b/jena-sparql-api-sparql-ext/src/main/java/org/aksw/jena_sparql_api/sparql/ext/xml/RDFDatatypeXml.java
index eb3ed2ca1..23b86eaae 100644
--- a/jena-sparql-api-sparql-ext/src/main/java/org/aksw/jena_sparql_api/sparql/ext/xml/RDFDatatypeXml.java
+++ b/jena-sparql-api-sparql-ext/src/main/java/org/aksw/jena_sparql_api/sparql/ext/xml/RDFDatatypeXml.java
@@ -96,7 +96,7 @@ public String unparse(Object value) {
      * @throws DatatypeFormatException if the lexical form is not legal
      */
     @Override
-    public Node parse(String lexicalForm) throws DatatypeFormatException {
+    public synchronized Node parse(String lexicalForm) throws DatatypeFormatException {
         Document result;
 		try {
 			result = documentBuilder.parse(new InputSource(new StringReader(lexicalForm)));