Fix select query block npe issue.

alibaba · Dec 23, 2024 · f7266bc · f7266bc
1 parent 9faeba9
commit f7266bc
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/core/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelectQueryBlock.java b/core/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelectQueryBlock.java
@@ -1231,6 +1231,9 @@ public boolean replace(SQLExpr expr, SQLExpr target) {
 
     protected <T extends SQLObject> boolean replaceList(List<T> exprList, T expr, T target) {
         boolean isReplaced = false;
+        if (exprList == null) {
+            return isReplaced;
+        }
         for (int i = 0; i < exprList.size(); i++) {
             if (exprList.get(i) == expr) {
                 target.setParent(this);