Check colourScheme is not null - jalview prior 2.5 incompatibility

diff --git a/src/jalview/gui/Jalview2XML_V1.java b/src/jalview/gui/Jalview2XML_V1.java
index d8dfe62..bc44ab4 100755 (executable)
--- a/src/jalview/gui/Jalview2XML_V1.java
+++ b/src/jalview/gui/Jalview2XML_V1.java
@@ -293,7 +293,9 @@ public class Jalview2XML_V1
                                 groups[i].getColour());\r
                     }\r
 \r
-                    cs.setThreshold(groups[i].getPidThreshold(), true);\r
+                    if(cs!=null)\r
+                      cs.setThreshold(groups[i].getPidThreshold(), true);\r
+\r
                 }\r
 \r
                 Vector seqs = new Vector();\r