Remove setting BP_NATIVE_IMAGE

Closes gh-32884

spring-boot-project/spring-boot-starters/spring-boot-starter-parent/build.gradle

@@ -265,13 +265,6 @@ publishing.publications.withType(MavenPublication) {
 								plugin {
 									delegate.groupId('org.springframework.boot')
 									delegate.artifactId('spring-boot-maven-plugin')
-									configuration {
-										image {
-											env {
-												delegate.BP_NATIVE_IMAGE("true")
-											}
-										}
-									}
 									executions {
 										execution {
 											delegate.id('process-aot')

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/docs/antora/modules/gradle-plugin/pages/packaging-oci-image.adoc

@@ -152,7 +152,7 @@ Acceptable values are `ALWAYS`, `NEVER`, and `IF_NOT_PRESENT`.
 | `environment`
 |
 | Environment variables that should be passed to the builder.
-| Empty or `['BP_NATIVE_IMAGE': 'true']` when {url-native-build-tools-docs-gradle-plugin}[GraalVM Native Image plugin] is applied.
+| Empty.
 
 | `buildpacks`
 |

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/docs/antora/modules/gradle-plugin/pages/reacting.adoc

@@ -89,6 +89,6 @@ When the {url-native-build-tools-docs-gradle-plugin}[GraalVM Native Image plugin
 . Configures the GraalVM extension to disable Toolchain detection.
 . Configures each GraalVM native binary to require GraalVM 22.3 or later.
 . Configures the `bootJar` task to include the reachability metadata produced by the `collectReachabilityMetadata` task in its jar.
-. Configures the `bootBuildImage` task to set `BP_NATIVE_IMAGE` to `true` in its environment.
+. Configures the `bootJar` task to add the `Spring-Boot-Native-Processed: true` manifest entry.
 
 

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/NativeImagePluginAction.java

@@ -32,7 +32,6 @@ import org.gradle.api.plugins.JavaPlugin;
 import org.gradle.api.plugins.JavaPluginExtension;
 import org.gradle.api.tasks.SourceSetContainer;
 
-import org.springframework.boot.gradle.tasks.bundling.BootBuildImage;
 import org.springframework.boot.gradle.tasks.bundling.BootJar;
 
 /**
@@ -59,7 +58,6 @@ class NativeImagePluginAction implements PluginApplicationAction {
 			configureMainNativeBinaryClasspath(project, sourceSets, graalVmExtension);
 			configureTestNativeBinaryClasspath(sourceSets, graalVmExtension);
 			copyReachabilityMetadataToBootJar(project);
-			configureBootBuildImageToProduceANativeImage(project);
 			configureJarManifestNativeAttribute(project);
 		});
 	}
@@ -102,12 +100,6 @@ class NativeImagePluginAction implements PluginApplicationAction {
 			.configure((bootJar) -> bootJar.from(project.getTasks().named("collectReachabilityMetadata")));
 	}
 
-	private void configureBootBuildImageToProduceANativeImage(Project project) {
-		project.getTasks()
-			.named(SpringBootPlugin.BOOT_BUILD_IMAGE_TASK_NAME, BootBuildImage.class)
-			.configure((bootBuildImage) -> bootBuildImage.getEnvironment().put("BP_NATIVE_IMAGE", "true"));
-	}
-
 	private void configureJarManifestNativeAttribute(Project project) {
 		project.getTasks()
 			.named(SpringBootPlugin.BOOT_JAR_TASK_NAME, BootJar.class)

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/java/org/springframework/boot/gradle/plugin/NativeImagePluginActionIntegrationTests.java

@@ -88,13 +88,6 @@ class NativeImagePluginActionIntegrationTests {
 				"META-INF/native-image/org.jline/jline/3.21.0/resource-config.json");
 	}
 
-	@TestTemplate
-	void bootBuildImageIsConfiguredToBuildANativeImage() {
-		writeDummySpringApplicationAotProcessorMainClass();
-		BuildResult result = this.gradleBuild.build("bootBuildImageConfiguration");
-		assertThat(result.getOutput()).contains("BP_NATIVE_IMAGE = true");
-	}
-
 	@TestTemplate
 	void developmentOnlyDependenciesDoNotAppearInNativeImageClasspath() {
 		writeDummySpringApplicationAotProcessorMainClass();

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/plugin/NativeImagePluginActionIntegrationTests-bootBuildImageIsConfiguredToBuildANativeImage.gradle

@@ -1,12 +0,0 @@
-plugins {
-	id 'org.springframework.boot' version '{version}'
-	id 'java'
-}
-
-apply plugin: 'org.graalvm.buildtools.native'
-
-task('bootBuildImageConfiguration') {
-	doFirst {
-		println "BP_NATIVE_IMAGE = ${tasks.getByName('bootBuildImage').environment.get()['BP_NATIVE_IMAGE']}"
-	}
-}

spring-boot-system-tests/spring-boot-image-tests/src/systemTest/resources/org/springframework/boot/image/paketo/PaketoBuilderTests-nativeApp.gradle

@@ -28,13 +28,10 @@ bootJar {
 	manifest {
 		attributes(
 				'Implementation-Version': '1.0.0',
-				'Implementation-Title': "Paketo Test"
+				'Implementation-Title': 'Paketo Test',
+				// This shouldn't be necessary.
+				// See https://github.com/spring-projects/spring-boot/issues/42338
+				'Spring-Boot-Native-Processed': 'true'
 		)
 	}
 }
-
-bootBuildImage {
-	environment = ['BP_NATIVE_IMAGE': 'true',
-					//see https://github.com/paketo-buildpacks/native-image/issues/321
-				   'BP_NATIVE_IMAGE_BUILD_ARGUMENTS': '-H:-AddAllFileSystemProviders']
-}