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BAEL-5123: Annotation Processor for Hibernate Validator (#11673)
* feat(wip): add Hibernate Validator AP example * chore: change AP version to 6.2.0.Final See https://hibernate.atlassian.net/browse/HV-1868 * revert(style): remove unnecessary formatter See eugenp/tutorials#11673 (comment) * fix: remove unauthorised annotation The AP was triggering a compile time error because the annotation @notblank is disallowed for the Profile data type. That's why the CI was failing. This customer class is unrelated to the article being written. * fix(style): revert indentation issue See https://github.com/eugenp/tutorials/pull/11673/files#r788146422
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‎javaxval/pom.xml‎

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<dependencies>
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<dependency>
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<groupId>org.hibernate</groupId>
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<groupId>org.hibernate.validator</groupId>
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<artifactId>hibernate-validator</artifactId>
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<version>${hibernate-validator.version}</version>
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</dependency>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>${maven.compiler.version}</version>
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<configuration>
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<source>${maven.compiler.source}</source>
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<target>${maven.compiler.target}</target>
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<fork>true</fork>
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<compilerArgs>
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<arg>-Averbose=true</arg>
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<arg>-AmethodConstraintsSupported=true</arg>
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<arg>-AdiagnosticKind=ERROR</arg>
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</compilerArgs>
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<annotationProcessorPaths>
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<path>
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<groupId>org.hibernate.validator</groupId>
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<artifactId>hibernate-validator-annotation-processor</artifactId>
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<version>${hibernate-validator.ap.version}</version>
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</path>
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</annotationProcessorPaths>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<properties>
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<hibernate-validator.version>6.0.13.Final</hibernate-validator.version>
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<hibernate-validator.ap.version>6.2.0.Final</hibernate-validator.ap.version>
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<maven.compiler.version>3.6.1</maven.compiler.version>
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<maven.compiler.source>1.8</maven.compiler.source>
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<maven.compiler.target>1.8</maven.compiler.target>
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<javax.el.version>3.0.0</javax.el.version>
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<org.springframework.version>5.0.2.RELEASE</org.springframework.version>
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</properties>
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</project>
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</project>

‎javaxval/src/main/java/com/baeldung/javaxval/container/validation/Customer.java‎

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@PositiveOrZero
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private OptionalInt numberOfOrders;
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@NotBlank
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private Profile profile;
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public String getName() {

‎javaxval/src/main/java/com/baeldung/javaxval/hibernate/validator/ap/Message.java‎

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package com.baeldung.javaxval.hibernate.validator.ap;
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import javax.validation.constraints.NotBlank;
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import javax.validation.constraints.NotNull;
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import javax.validation.constraints.Past;
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import java.util.List;
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import java.util.Optional;
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public class Message {
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@NotNull(message = "Content cannot be null")
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private String content;
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private boolean isDelivered;
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private List<@NotBlank String> recipients;
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// uncomment in order to trigger AP annotation detection
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// The annotation @Past is disallowed for this data type.
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// @Past
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private String createdAt;
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public String getContent() {
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return content;
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}
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public Message(String content, boolean isDelivered, List<@NotBlank String> recipients, String createdAt) {
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this.content = content;
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this.isDelivered = isDelivered;
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this.recipients = recipients;
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this.createdAt = createdAt;
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}
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// uncomment in order to trigger AP annotation detection
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// The annotation @Min is disallowed for the return type of this method.
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// @Min(3)
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public boolean broadcast() {
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// setup a logic
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// to send to recipients
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return true;
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}
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// uncomment in order to trigger AP annotation detection
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// Void methods may not be annotated with constraint annotations.
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// @NotNull
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public void archive() {
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// archive the message
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}
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// uncomment in order to trigger AP annotation detection
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// Constraint annotations must not be specified at methods, which are no valid JavaBeans getter methods.
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// NOTE: add <arg>-AmethodConstraintsSupported=false</arg> to compiler args before
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// @AssertTrue
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public boolean delete() {
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// delete the message
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return false;
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}
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public void setContent(String content) {
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this.content = content;
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}
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public boolean isDelivered() {
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return isDelivered;
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}
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public void setDelivered(boolean delivered) {
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isDelivered = delivered;
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}
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public List<String> getRecipients() {
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return recipients;
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}
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public void setRecipients(List<String> recipients) {
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this.recipients = recipients;
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}
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public void setCreatedAt(String createdAt) {
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this.createdAt = createdAt;
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}
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public String getName() {
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return content;
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}
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public void setName(String content) {
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this.content = content;
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}
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public Optional<@Past String> getCreatedAt() {
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return Optional.ofNullable(createdAt);
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}
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}

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