Change a NPE to have a better error message (#5482)

apache · Jun 28, 2020 · a3faa2f · a3faa2f
1 parent bd5957a
commit a3faa2f
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/...core/src/main/java/org/apache/pinot/core/indexsegment/immutable/ImmutableSegmentImpl.java b/...core/src/main/java/org/apache/pinot/core/indexsegment/immutable/ImmutableSegmentImpl.java
@@ -60,7 +60,11 @@ public ImmutableSegmentImpl(SegmentDirectory segmentDirectory, SegmentMetadataIm
 
   @Override
   public Dictionary getDictionary(String column) {
-    return _indexContainerMap.get(column).getDictionary();
+    ColumnIndexContainer container = _indexContainerMap.get(column);
+    if (container == null) {
+      throw new NullPointerException("Invalid column: " + column);
+    }
+    return container.getDictionary();
   }
 
   @Override