Upgrade to nullability plugin 0.0.9

This commit also replaces Arch Unit packageInfoShouldBeNullMarked() rule
by either configuring requireExplicitNullMarking = false when the whole
module does not have JSpecify annotations, or explicit @NullUnmarked
when some have and some don't.

See gh-36054

build.gradle

@@ -6,7 +6,7 @@ plugins {
 	id 'com.github.bjornvester.xjc' version '1.8.2' apply false
 	id 'com.gradleup.shadow' version "9.2.2" apply false
 	id 'me.champeau.jmh' version '0.7.2' apply false
-	id 'io.spring.nullability' version '0.0.8' apply false
+	id 'io.spring.nullability' version '0.0.9' apply false
 }
 
 ext {

buildSrc/src/main/java/org/springframework/build/architecture/ArchitectureCheck.java

@@ -49,7 +49,6 @@ import static org.springframework.build.architecture.ArchitectureRules.classesSh
 import static org.springframework.build.architecture.ArchitectureRules.javaClassesShouldNotImportKotlinAnnotations;
 import static org.springframework.build.architecture.ArchitectureRules.noClassesShouldCallStringToLowerCaseWithoutLocale;
 import static org.springframework.build.architecture.ArchitectureRules.noClassesShouldCallStringToUpperCaseWithoutLocale;
-import static org.springframework.build.architecture.ArchitectureRules.packageInfoShouldBeNullMarked;
 
 /**
  * {@link Task} that checks for architecture problems.
@@ -64,8 +63,7 @@ public abstract class ArchitectureCheck extends DefaultTask {
 	public ArchitectureCheck() {
 		getOutputDirectory().convention(getProject().getLayout().getBuildDirectory().dir(getName()));
 		getProhibitObjectsRequireNonNull().convention(true);
-		getRules().addAll(packageInfoShouldBeNullMarked(),
-				classesShouldNotImportForbiddenTypes(),
+		getRules().addAll(classesShouldNotImportForbiddenTypes(),
 				javaClassesShouldNotImportKotlinAnnotations(),
 				allPackagesShouldBeFreeOfTangles(),
 				noClassesShouldCallStringToLowerCaseWithoutLocale(),

buildSrc/src/main/java/org/springframework/build/architecture/ArchitectureRules.java

@@ -46,13 +46,6 @@ abstract class ArchitectureRules {
 				.because("String.toUpperCase(Locale.ROOT) should be used instead");
 	}
 
-	static ArchRule packageInfoShouldBeNullMarked() {
-		return ArchRuleDefinition.classes()
-				.that().haveSimpleName("package-info")
-				.should().beAnnotatedWith("org.jspecify.annotations.NullMarked")
-				.allowEmptyShould(true);
-	}
-
 	static ArchRule classesShouldNotImportForbiddenTypes() {
 		return ArchRuleDefinition.noClasses()
 				.should().dependOnClassesThat()

gradle/spring-module.gradle

@@ -105,10 +105,6 @@ tasks.register('javadocJar', Jar) {
 	from javadoc
 }
 
-nullability {
-    nullAwayVersion = "0.12.15"
-}
-
 publishing {
 	publications {
 		mavenJava(MavenPublication) {

spring-context-indexer/spring-context-indexer.gradle

@@ -7,3 +7,7 @@ dependencies {
 	testImplementation("jakarta.persistence:jakarta.persistence-api")
 	testImplementation("jakarta.transaction:jakarta.transaction-api")
 }
+
+nullability {
+	requireExplicitNullMarking = false
+}

spring-context/src/main/java/org/springframework/instrument/classloading/glassfish/package-info.java

@@ -1,4 +1,7 @@
 /**
  * Support for class instrumentation on GlassFish.
  */
+@NullUnmarked
 package org.springframework.instrument.classloading.glassfish;
+
+import org.jspecify.annotations.NullUnmarked;

spring-context/src/main/java/org/springframework/instrument/classloading/jboss/package-info.java

@@ -1,4 +1,7 @@
 /**
  * Support for class instrumentation on JBoss AS 6 and 7.
  */
+@NullUnmarked
 package org.springframework.instrument.classloading.jboss;
+
+import org.jspecify.annotations.NullUnmarked;

spring-context/src/main/java/org/springframework/instrument/classloading/package-info.java

@@ -2,4 +2,7 @@
  * Support package for load time weaving based on class loaders,
  * as required by JPA providers (but not JPA-specific).
  */
+@NullUnmarked
 package org.springframework.instrument.classloading;
+
+import org.jspecify.annotations.NullUnmarked;

spring-context/src/main/java/org/springframework/instrument/classloading/tomcat/package-info.java

@@ -1,4 +1,7 @@
 /**
  * Support for class instrumentation on Tomcat.
  */
+@NullUnmarked
 package org.springframework.instrument.classloading.tomcat;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/aot/nativex/feature/package-info.java

@@ -1,4 +1,7 @@
 /**
  * GraalVM native image features, not part of Spring Framework public API.
  */
+@NullUnmarked
 package org.springframework.aot.nativex.feature;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/aot/nativex/substitution/package-info.java

@@ -1,4 +1,7 @@
 /**
  * GraalVM native image substitutions, not part of Spring Framework public API.
  */
+@NullUnmarked
 package org.springframework.aot.nativex.substitution;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/asm/package-info.java

@@ -10,4 +10,7 @@
  * <p>As this repackaging happens at the class file level, sources
  * and javadocs are not available here.
  */
+@NullUnmarked
 package org.springframework.asm;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/cglib/beans/package-info.java

@@ -3,4 +3,7 @@
  * <a href="https://github.com/cglib/cglib">CGLIB</a> beans package
  * (for internal use only).
  */
+@NullUnmarked
 package org.springframework.cglib.beans;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/cglib/core/internal/package-info.java

@@ -3,4 +3,7 @@
  * <a href="https://github.com/cglib/cglib">CGLIB</a> core internal package
  * (for internal use only).
  */
+@NullUnmarked
 package org.springframework.cglib.core.internal;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/cglib/core/package-info.java

@@ -3,4 +3,7 @@
  * <a href="https://github.com/cglib/cglib">CGLIB</a> core package
  * (for internal use only).
  */
+@NullUnmarked
 package org.springframework.cglib.core;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/cglib/package-info.java

@@ -7,4 +7,7 @@
  * dependencies on CGLIB at the application level or from third-party
  * libraries and frameworks.
  */
+@NullUnmarked
 package org.springframework.cglib;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/cglib/proxy/package-info.java

@@ -3,4 +3,7 @@
  * <a href="https://github.com/cglib/cglib">CGLIB</a> proxy package
  * (for internal use only).
  */
+@NullUnmarked
 package org.springframework.cglib.proxy;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/cglib/reflect/package-info.java

@@ -3,4 +3,7 @@
  * <a href="https://github.com/cglib/cglib">CGLIB</a> reflect package
  * (for internal use only).
  */
+@NullUnmarked
 package org.springframework.cglib.reflect;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/cglib/transform/impl/package-info.java

@@ -3,4 +3,7 @@
  * <a href="https://github.com/cglib/cglib">CGLIB</a> transform impl package
  * (for internal use only).
  */
+@NullUnmarked
 package org.springframework.cglib.transform.impl;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/cglib/transform/package-info.java

@@ -3,4 +3,7 @@
  * <a href="https://github.com/cglib/cglib">CGLIB</a> transform package
  * (for internal use only).
  */
+@NullUnmarked
 package org.springframework.cglib.transform;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/cglib/util/package-info.java

@@ -3,4 +3,7 @@
  * <a href="https://github.com/cglib/cglib">CGLIB</a> util package
  * (for internal use only).
  */
+@NullUnmarked
 package org.springframework.cglib.util;
+
+import org.jspecify.annotations.NullUnmarked;

spring-core/src/main/java/org/springframework/objenesis/package-info.java

@@ -12,4 +12,7 @@
  * <a href="http://objenesis.org/tutorial.html">Objenesis docs</a>
  * for details when working with these classes.
  */
+@NullUnmarked
 package org.springframework.objenesis;
+
+import org.jspecify.annotations.NullUnmarked;

spring-instrument/spring-instrument.gradle

@@ -9,3 +9,7 @@ jar {
 	manifest.attributes["Can-Retransform-Classes"] = "true"
 	manifest.attributes["Can-Set-Native-Method-Prefix"] = "false"
 }
+
+nullability {
+	requireExplicitNullMarking = false
+}