Avoid calling getProject() when checking configuration metadata

Closes gh-40546

Author: wilkinsona

buildSrc/src/main/java/org/springframework/boot/build/context/properties/CheckAdditionalSpringConfigurationMetadata.java

@@ -48,9 +48,12 @@
  */
 public class CheckAdditionalSpringConfigurationMetadata extends SourceTask {
 
+	private final File projectDir;
+
 	private final RegularFileProperty reportLocation;
 
 	public CheckAdditionalSpringConfigurationMetadata() {
+		this.projectDir = getProject().getProjectDir();
 		this.reportLocation = getProject().getObjects().fileProperty();
 	}
 
@@ -82,7 +85,7 @@ private Report createReport() throws IOException, JsonParseException, JsonMappin
 		ObjectMapper objectMapper = new ObjectMapper();
 		Report report = new Report();
 		for (File file : getSource().getFiles()) {
-			Analysis analysis = report.analysis(getProject().getProjectDir().toPath().relativize(file.toPath()));
+			Analysis analysis = report.analysis(this.projectDir.toPath().relativize(file.toPath()));
 			Map<String, Object> json = objectMapper.readValue(file, Map.class);
 			check("groups", json, analysis);
 			check("properties", json, analysis);

buildSrc/src/main/java/org/springframework/boot/build/context/properties/CheckSpringConfigurationMetadata.java

@@ -49,11 +49,14 @@ public class CheckSpringConfigurationMetadata extends DefaultTask {
 
 	private List<String> exclusions = new ArrayList<>();
 
+	private final File projectDir;
+
 	private final RegularFileProperty reportLocation;
 
 	private final RegularFileProperty metadataLocation;
 
 	public CheckSpringConfigurationMetadata() {
+		this.projectDir = getProject().getProjectDir();
 		this.metadataLocation = getProject().getObjects().fileProperty();
 		this.reportLocation = getProject().getObjects().fileProperty();
 	}
@@ -93,7 +96,7 @@ void check() throws JsonParseException, IOException {
 	private Report createReport() throws IOException, JsonParseException, JsonMappingException {
 		ObjectMapper objectMapper = new ObjectMapper();
 		File file = this.metadataLocation.get().getAsFile();
-		Report report = new Report(getProject().getProjectDir().toPath().relativize(file.toPath()));
+		Report report = new Report(this.projectDir.toPath().relativize(file.toPath()));
 		Map<String, Object> json = objectMapper.readValue(file, Map.class);
 		List<Map<String, Object>> properties = (List<Map<String, Object>>) json.get("properties");
 		for (Map<String, Object> property : properties) {