From 0ea5228782a899b6f1169be2d180beafc7703551 Mon Sep 17 00:00:00 2001
From: sretake <44957231+sretake@users.noreply.github.com>
Date: Thu, 15 Aug 2024 13:13:46 +0800
Subject: [PATCH] fix: NPE in no classpath (#5764)

Co-authored-by: c00593292 <chenhongxu5@huawei.com>
---
 src/main/java/spoon/support/visitor/SignaturePrinter.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/spoon/support/visitor/SignaturePrinter.java b/src/main/java/spoon/support/visitor/SignaturePrinter.java
index 22de1ed6704..a9aa6e02ee1 100644
--- a/src/main/java/spoon/support/visitor/SignaturePrinter.java
+++ b/src/main/java/spoon/support/visitor/SignaturePrinter.java
@@ -47,7 +47,7 @@ public <T> void visitCtExecutableReference(CtExecutableReference<T> reference) {
 
 	/** writes only the name and parameters' types */
 	public <T> void writeNameAndParameters(CtExecutableReference<T> reference) {
-		if (reference.isConstructor()) {
+		if (reference.isConstructor() && reference.getDeclaringType() != null) {
 			write(reference.getDeclaringType().getQualifiedName());
 		} else {
 			write(reference.getSimpleName());