[isis] branch master updated: ISIS-2297: commons: make YAML writer null-safe

[ahuber]

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ahuber pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/isis.git


The following commit(s) were added to refs/heads/master by this push:
     new e647de7d18 ISIS-2297: commons: make YAML writer null-safe
e647de7d18 is described below

commit e647de7d18b76173a3cac1b1fb8633bac80d437f
Author: Andi Huber <ahu...@apache.org>
AuthorDate: Sun Nov 6 07:51:17 2022 +0100

    ISIS-2297: commons: make YAML writer null-safe
---
 .../java/org/apache/causeway/commons/internal/resources/_Yaml.java     | 3 +++
 1 file changed, 3 insertions(+)

diff --git 
a/commons/src/main/java/org/apache/causeway/commons/internal/resources/_Yaml.java
 
b/commons/src/main/java/org/apache/causeway/commons/internal/resources/_Yaml.java
index 8cfa5b1c2f..a7a9bf52ff 100644
--- 
a/commons/src/main/java/org/apache/causeway/commons/internal/resources/_Yaml.java
+++ 
b/commons/src/main/java/org/apache/causeway/commons/internal/resources/_Yaml.java
@@ -145,6 +145,9 @@ public class _Yaml {
     private static String _toString(
             final @Nullable Object pojo,
             final @Nullable UnaryOperator<DumperOptions> customizer) {
+        if(pojo==null) {
+            return "";
+        }
         try(val writer = new StringWriter()){
             val defaultOptions = new DumperOptions();
             defaultOptions.setIndent(2);