Create spring-boot-jsonb module

spring-boot-project/spring-boot-jsonb/src/main/java/org/springframework/boot/jsonb/autoconfigure/JsonbAutoConfiguration.java

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+/*
+ * Copyright 2012-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.jsonb.autoconfigure;
+
+import jakarta.json.bind.Jsonb;
+import jakarta.json.bind.JsonbBuilder;
+
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnResource;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * {@link EnableAutoConfiguration Auto-configuration} for JSON-B.
+ *
+ * @author Eddú Meléndez
+ * @since 2.0.0
+ */
+@AutoConfiguration
+@ConditionalOnClass(Jsonb.class)
+@ConditionalOnResource(resources = { "classpath:META-INF/services/jakarta.json.bind.spi.JsonbProvider",
+		"classpath:META-INF/services/jakarta.json.spi.JsonProvider" })
+public class JsonbAutoConfiguration {
+
+	@Bean
+	@ConditionalOnMissingBean
+	public Jsonb jsonb() {
+		return JsonbBuilder.create();
+	}
+
+}

spring-boot-project/spring-boot-jsonb/src/main/java/org/springframework/boot/jsonb/autoconfigure/package-info.java

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+/*
+ * Copyright 2012-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Auto-configuration for JSON-B.
+ */
+package org.springframework.boot.jsonb.autoconfigure;

spring-boot-project/spring-boot-jsonb/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

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+org.springframework.boot.jsonb.autoconfigure.JsonbAutoConfiguration

spring-boot-project/spring-boot-jsonb/src/test/java/org/springframework/boot/jsonb/autoconfigure/JsonbAutoConfigurationTests.java

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+/*
+ * Copyright 2012-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.jsonb.autoconfigure;
+
+import jakarta.json.bind.Jsonb;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.test.context.runner.ApplicationContextRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link JsonbAutoConfiguration}.
+ *
+ * @author Eddú Meléndez
+ */
+class JsonbAutoConfigurationTests {
+
+	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
+		.withConfiguration(AutoConfigurations.of(JsonbAutoConfiguration.class));
+
+	@Test
+	void jsonbRegistration() {
+		this.contextRunner.run((context) -> {
+			assertThat(context).hasSingleBean(Jsonb.class);
+			Jsonb jsonb = context.getBean(Jsonb.class);
+			assertThat(jsonb.toJson(new DataObject())).isEqualTo("{\"data\":\"hello\"}");
+		});
+	}
+
+	public class DataObject {
+
+		private String data = "hello";
+
+		public String getData() {
+			return this.data;
+		}
+
+		public void setData(String data) {
+			this.data = data;
+		}
+
+	}
+
+}

spring-boot-project/spring-boot-jsonb/src/test/java/org/springframework/boot/jsonb/autoconfigure/JsonbAutoConfigurationWithNoProviderTests.java

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+/*
+ * Copyright 2012-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.jsonb.autoconfigure;
+
+import jakarta.json.bind.Jsonb;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.test.context.runner.ApplicationContextRunner;
+import org.springframework.boot.testsupport.classpath.ClassPathExclusions;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link JsonbAutoConfiguration} when there is no provider available.
+ *
+ * @author Andy Wilkinson
+ */
+@ClassPathExclusions("yasson-*.jar")
+class JsonbAutoConfigurationWithNoProviderTests {
+
+	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
+		.withConfiguration(AutoConfigurations.of(JsonbAutoConfiguration.class));
+
+	@Test
+	void jsonbBacksOffWhenThereIsNoProvider() {
+		this.contextRunner.run((context) -> assertThat(context).doesNotHaveBean(Jsonb.class));
+	}
+
+}