[bugfix] Avoid NPE if MemTree Attribute does not have an owner Element

adamretter · adamretter · commit 0d96cc74146b · 2022-06-15T14:01:04.000+02:00
diff --git a/exist-core/src/main/java/org/exist/dom/memtree/AttrImpl.java b/exist-core/src/main/java/org/exist/dom/memtree/AttrImpl.java
@@ -153,7 +153,10 @@ public void selectAncestors(boolean includeSelf, NodeTest test, Sequence result)
         if (test.matches(this)) {
             result.add(this);
         }
-        ((NodeImpl)getOwnerElement()).selectAncestors(true, test, result);
+        final ElementImpl ownerElement = (ElementImpl) getOwnerElement();
+        if (ownerElement != null) {
+            ownerElement.selectAncestors(true, test, result);
+        }
     }
 
     @Override

Original file line number	Diff line number	Diff line change
`@@ -153,7 +153,10 @@ public void selectAncestors(boolean includeSelf, NodeTest test, Sequence result)`
`153`	`153`	`if (test.matches(this)) {`
`154`	`154`	`result.add(this);`
`155`	`155`	`}`
`156`		`- ((NodeImpl)getOwnerElement()).selectAncestors(true, test, result);`
	`156`	`+ final ElementImpl ownerElement = (ElementImpl) getOwnerElement();`
	`157`	`+ if (ownerElement != null) {`
	`158`	`+ ownerElement.selectAncestors(true, test, result);`
	`159`	`+ }`
`157`	`160`	`}`
`158`	`161`
`159`	`162`	`@Override`