patch for 'This parser does not support specification "null" version "null"' error

diff --git a/src/jalview/io/RnamlFile.java b/src/jalview/io/RnamlFile.java
index 122e6e1..f108994 100644 (file)
--- a/src/jalview/io/RnamlFile.java
+++ b/src/jalview/io/RnamlFile.java
@@ -83,6 +83,13 @@ public class RnamlFile extends AlignFile
 
   public void parse() throws IOException
   {
+    if (System.getProperty("java.version").indexOf("1.6")>-1 || System.getProperty("java.version").indexOf("1.5")>-1)
+    {
+      // patch for 'This parser does not support specification "null" version "null"' error
+      // this hack ensures we get a properly updated SAXParserFactory on older JVMs
+      // thanks to Stefan Birkner over at https://coderwall.com/p/kqsrrw
+      System.setProperty("javax.xml.parsers.SAXParserFactory", "com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl");
+    }
     result = null;
     try
     {