From f4f8700d002e655b86c8343cde0f9a97982d3c58 Mon Sep 17 00:00:00 2001
From: Ashley Scopes <73482956+ascopes@users.noreply.github.com>
Date: Sun, 12 May 2024 16:34:00 +0100
Subject: [PATCH] Don't flag on protoc if the default fallback source directory
 is missing

---
 .../mojo/AbstractGenerateMojo.java                    | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/protobuf-maven-plugin/src/main/java/io/github/ascopes/protobufmavenplugin/mojo/AbstractGenerateMojo.java b/protobuf-maven-plugin/src/main/java/io/github/ascopes/protobufmavenplugin/mojo/AbstractGenerateMojo.java
index 883f1863..68550d80 100644
--- a/protobuf-maven-plugin/src/main/java/io/github/ascopes/protobufmavenplugin/mojo/AbstractGenerateMojo.java
+++ b/protobuf-maven-plugin/src/main/java/io/github/ascopes/protobufmavenplugin/mojo/AbstractGenerateMojo.java
@@ -674,6 +674,13 @@ private Collection<Path> sourceDirectories() {
         .stream()
         .flatMap(Collection::stream)
         .map(File::toPath)
+        .collect(Collectors.toList());
+
+    var finalDirectories = transformedSourceDirectories.isEmpty()
+        ? List.of(defaultSourceDirectory())
+        : transformedSourceDirectories;
+
+    return finalDirectories.stream()
         .filter(path -> {
           if (Files.notExists(path)) {
             log.warn("Ignoring source directory {} as it does not appear to exist", path);
@@ -682,10 +689,6 @@ private Collection<Path> sourceDirectories() {
           return true;
         })
         .collect(Collectors.toList());
-
-    return transformedSourceDirectories.isEmpty()
-        ? List.of(defaultSourceDirectory())
-        : transformedSourceDirectories;
   }
 
   private String protocVersion() {