(camel) branch camel-4.8.x updated: CAMEL-21572: fix java.lang.NullPointerException when using SetHeader and Stub (#16656)

[davsclaus]

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davsclaus pushed a commit to branch camel-4.8.x
in repository https://gitbox.apache.org/repos/asf/camel.git


The following commit(s) were added to refs/heads/camel-4.8.x by this push:
     new 07d79bfcf36 CAMEL-21572: fix java.lang.NullPointerException when using 
SetHeader and Stub (#16656)
07d79bfcf36 is described below

commit 07d79bfcf36846c420c2633448b3fbcf65df0801
Author: Bartosz Popiela <bartosz...@gmail.com>
AuthorDate: Fri Dec 27 10:28:46 2024 +0100

    CAMEL-21572: fix java.lang.NullPointerException when using SetHeader and 
Stub (#16656)
---
 .../main/java/org/apache/camel/support/builder/ExpressionBuilder.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git 
a/core/camel-support/src/main/java/org/apache/camel/support/builder/ExpressionBuilder.java
 
b/core/camel-support/src/main/java/org/apache/camel/support/builder/ExpressionBuilder.java
index d860a9239d1..0dc5a361c21 100644
--- 
a/core/camel-support/src/main/java/org/apache/camel/support/builder/ExpressionBuilder.java
+++ 
b/core/camel-support/src/main/java/org/apache/camel/support/builder/ExpressionBuilder.java
@@ -2123,7 +2123,7 @@ public class ExpressionBuilder {
                         expression.init(context);
                         if (expression instanceof ConstantExpressionAdapter 
constantExpressionAdapter) {
                             Object value = 
constantExpressionAdapter.getValue();
-                            preprocessedExpression.add(value.toString());
+                            preprocessedExpression.add(String.valueOf(value));
                         } else {
                             preprocessedExpression.add(expression);
                             constantsOnly = false;