Fix NoSuchFileExceptionv in collectReachabilityMetadata` Gradle task

common/graalvm-reachability-metadata/src/main/java/org/graalvm/reachability/DirectoryConfiguration.java

@@ -94,6 +94,9 @@ public static void copy(Collection<DirectoryConfiguration> configurations, Path
     }
 
     private static void copyFileTree(Path source, Path target) throws IOException {
+        if (Files.notExists(source)) {
+            return;
+        }
         Files.walkFileTree(source, new SimpleFileVisitor<Path>() {
 
             @Override
@@ -114,6 +117,9 @@ public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IO
 
     private static void writeConfigurationProperties(DirectoryConfiguration configuration, Path target)
             throws IOException {
+        if (Files.notExists(target)) {
+            Files.createDirectories(target);
+        }
         StringBuilder content = new StringBuilder();
         if (configuration.isOverride()) {
             content.append("override=true\n");

native-gradle-plugin/src/functionalTest/groovy/org/graalvm/buildtools/gradle/ReachabilityMetadataFunctionalTest.groovy

@@ -73,6 +73,8 @@ class ReachabilityMetadataFunctionalTest extends AbstractFunctionalTest {
     ]
   }
 }'''
+        and: "has copied reachability-metadata.properties file"
+        file("build/native-reachability-metadata/META-INF/native-image/io.netty/netty-codec-http/4.1.80.Final/reachability-metadata.properties").text.trim() == 'override=true'
     }
 
 }

samples/metadata-repo-integration/build.gradle

@@ -53,10 +53,12 @@ application {
 }
 
 String h2_version = getProperty("h2.version")
+String netty_version = getProperty("netty.version")
 
 
 dependencies {
     implementation("com.h2database:h2:$h2_version")
+    implementation("io.netty:netty-codec-http:$netty_version")
 }
 
 graalvmNative {

samples/metadata-repo-integration/gradle.properties

@@ -1,2 +1,3 @@
 native.gradle.plugin.version = 0.9.15-SNAPSHOT
 h2.version = 2.1.210
+netty.version = 4.1.80.Final