checkpoint

[sbp.git] / src / edu / berkeley / sbp / misc / ReflectiveWalker.java

diff --git a/src/edu/berkeley/sbp/misc/ReflectiveWalker.java b/src/edu/berkeley/sbp/misc/ReflectiveWalker.java
index c99a463..c838a5e 100644 (file)
--- a/src/edu/berkeley/sbp/misc/ReflectiveWalker.java
+++ b/src/edu/berkeley/sbp/misc/ReflectiveWalker.java
@@ -68,6 +68,7 @@ public class ReflectiveWalker extends StringWalker {
     }
     */
     public void walk(String tag) {
+        if (tag==null) return;
         Member m = member(normalize(tag), 0, false);
         if (m!=null) Reflection.fuzzyInvoke(target, m);
     }
@@ -75,7 +76,7 @@ public class ReflectiveWalker extends StringWalker {
         if (argo.length==0) return super.walk(tag, argo);
         if (argo==null) return tag;
         if (tag==null || "".equals(tag)) return argo;
-        Member m = member(normalize(tag), argo.length, argo.length>0);
+        Member m = tag==null ? null : member(normalize(tag), argo.length, argo.length>0);
         if (m==null) return super.walk(tag, argo);
         //System.out.println("preparing to invoke method " + (m==null ? "null" : (m.toString())) + " for sequence " + (owner()+"."+tag));
         if (m != null) return Reflection.fuzzyInvoke(target, m, argo);