diff --git a/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusDev.java b/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusDev.java
index b700d2edb..af15e52b6 100644
--- a/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusDev.java
+++ b/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusDev.java
@@ -253,11 +253,6 @@ public class QuarkusDev extends QuarkusTask {
             wiringClassesDirectory.mkdirs();
             addToClassPaths(classPathManifest, context, wiringClassesDirectory);
 
-            //now we need to build a temporary jar to actually run
-            File tempFile = new File(getBuildDir(), extension.finalName() + "-dev.jar");
-            tempFile.delete();
-            tempFile.deleteOnExit();
-
             StringBuilder resources = new StringBuilder();
             String res = null;
             for (File file : extension.resourcesDir()) {
@@ -377,6 +372,10 @@ public class QuarkusDev extends QuarkusTask {
             context.setCacheDir(new File(getBuildDir(), "transformer-cache").getAbsoluteFile());
 
             // this is the jar file we will use to launch the dev mode main class
+            final File tempFile = new File(getBuildDir(), extension.finalName() + "-dev.jar");
+            tempFile.delete();
+            tempFile.deleteOnExit();
+
             context.setDevModeRunnerJarFile(tempFile);
             try (ZipOutputStream out = new ZipOutputStream(new FileOutputStream(tempFile))) {
                 out.putNextEntry(new ZipEntry("META-INF/"));
@@ -389,19 +388,23 @@ public class QuarkusDev extends QuarkusTask {
 
                 out.putNextEntry(new ZipEntry(DevModeMain.DEV_MODE_CONTEXT));
                 ByteArrayOutputStream bytes = new ByteArrayOutputStream();
-                ObjectOutputStream obj = new ObjectOutputStream(new DataOutputStream(bytes));
-                obj.writeObject(context);
-                obj.close();
+                try (ObjectOutputStream obj = new ObjectOutputStream(new DataOutputStream(bytes))) {
+                    obj.writeObject(context);
+                }
                 out.write(bytes.toByteArray());
 
                 out.putNextEntry(new ZipEntry(BootstrapConstants.SERIALIZED_APP_MODEL));
                 bytes = new ByteArrayOutputStream();
-                obj = new ObjectOutputStream(new DataOutputStream(bytes));
-                obj.writeObject(appModel);
-                obj.close();
+                try (ObjectOutputStream obj = new ObjectOutputStream(new DataOutputStream(bytes))) {
+                    obj.writeObject(appModel);
+                }
                 out.write(bytes.toByteArray());
             }
 
+            final Path serializedModel = QuarkusGradleUtils.serializeAppModel(appModel);
+            serializedModel.toFile().deleteOnExit();
+            args.add("-D" + BootstrapConstants.SERIALIZED_APP_MODEL + "=" + serializedModel.toAbsolutePath());
+
             extension.outputDirectory().mkdirs();
 
             args.add("-jar");
diff --git a/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusGradleUtils.java b/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusGradleUtils.java
new file mode 100644
index 000000000..fe44c1fe5
--- /dev/null
+++ b/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusGradleUtils.java
@@ -0,0 +1,19 @@
+package io.quarkus.gradle.tasks;
+
+import java.io.IOException;
+import java.io.ObjectOutputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import io.quarkus.bootstrap.model.AppModel;
+
+public class QuarkusGradleUtils {
+
+    public static Path serializeAppModel(final AppModel appModel) throws IOException {
+        final Path serializedModel = Files.createTempFile("quarkus-", "-gradle-test");
+        try (ObjectOutputStream out = new ObjectOutputStream(Files.newOutputStream(serializedModel))) {
+            out.writeObject(appModel);
+        }
+        return serializedModel;
+    }
+}
diff --git a/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusTestConfig.java b/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusTestConfig.java
index 48280ab08..681e57a6f 100644
--- a/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusTestConfig.java
+++ b/devtools/gradle/src/main/java/io/quarkus/gradle/tasks/QuarkusTestConfig.java
@@ -1,7 +1,5 @@
 package io.quarkus.gradle.tasks;
 
-import java.io.ObjectOutputStream;
-import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Map;
 
@@ -29,10 +27,7 @@ public class QuarkusTestConfig extends QuarkusTask {
                     .toAbsolutePath()
                     .toString();
 
-            final Path serializedModel = Files.createTempFile("quarkus-", "-gradle-test");
-            try (ObjectOutputStream out = new ObjectOutputStream(Files.newOutputStream(serializedModel))) {
-                out.writeObject(deploymentDeps);
-            }
+            final Path serializedModel = QuarkusGradleUtils.serializeAppModel(deploymentDeps);
 
             for (Test test : getProject().getTasks().withType(Test.class)) {
                 final Map<String, Object> props = test.getSystemProperties();
diff --git a/independent-projects/bootstrap/core/src/main/java/io/quarkus/bootstrap/BootstrapAppModelFactory.java b/independent-projects/bootstrap/core/src/main/java/io/quarkus/bootstrap/BootstrapAppModelFactory.java
index 9ba87fa4c..c2d53d318 100644
--- a/independent-projects/bootstrap/core/src/main/java/io/quarkus/bootstrap/BootstrapAppModelFactory.java
+++ b/independent-projects/bootstrap/core/src/main/java/io/quarkus/bootstrap/BootstrapAppModelFactory.java
@@ -221,7 +221,7 @@ public class BootstrapAppModelFactory {
                 final Path p = Paths.get(serializedModel);
                 if (Files.exists(p)) {
                     try (InputStream existing = Files.newInputStream(Paths.get(serializedModel))) {
-                        AppModel appModel = (AppModel) new ObjectInputStream(existing).readObject();
+                        final AppModel appModel = (AppModel) new ObjectInputStream(existing).readObject();
                         return new CurationResult(appModel);
                     } catch (IOException | ClassNotFoundException e) {
                         log.error("Failed to load serialized app mode", e);