From f1db0ef036480e74f14b1945068ad03a572d1f11 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Nicoll?= <stephane.nicoll@broadcom.com>
Date: Wed, 17 Dec 2025 14:30:49 +0100
Subject: [PATCH] Do not display error location when unknown

Closes gh-36041
---
 .../org/springframework/core/test/tools/TestCompiler.java | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/spring-core-test/src/main/java/org/springframework/core/test/tools/TestCompiler.java b/spring-core-test/src/main/java/org/springframework/core/test/tools/TestCompiler.java
index c373dd56230..6e9bcc9569b 100644
--- a/spring-core-test/src/main/java/org/springframework/core/test/tools/TestCompiler.java
+++ b/spring-core-test/src/main/java/org/springframework/core/test/tools/TestCompiler.java
@@ -365,9 +365,11 @@ public final class TestCompiler {
 			if (diagnostic.getSource() != null) {
 				message.append(' ');
 				message.append(diagnostic.getSource().getName());
-				message.append(' ');
-				message.append(diagnostic.getLineNumber()).append(':')
-						.append(diagnostic.getColumnNumber());
+				if (diagnostic.getLineNumber() != -1 && diagnostic.getColumnNumber() != -1) {
+					message.append(' ');
+					message.append(diagnostic.getLineNumber()).append(':')
+							.append(diagnostic.getColumnNumber());
+				}
 			}
 			return message.toString();
 		}