Index: /trunk/src/org/openstreetmap/josm/plugins/PluginListParser.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/plugins/PluginListParser.java	(revision 4023)
+++ /trunk/src/org/openstreetmap/josm/plugins/PluginListParser.java	(revision 4024)
@@ -96,4 +96,6 @@
                 }
                 String x[] = line.split(";");
+                if(x.length != 2)
+                  throw new IOException(tr("Illegal entry in plugin list."));
                 name = x[0];
                 url = x[1];