Provide kiwi validation constraints via service loader mechanism (#1113)

* Rename ValidationMessages.properties to
  ContributorValidationMessages.properties
* Add jakarta.validation.ConstraintValidator in META-INF/services
  which defines the services that will be loaded via service loader
* Remove the value in the validatedBy attribute of Constraint
  annotations on all kiwi custom constraints to avoid duplicate
  definitions of them.

Closes #1112

src/main/java/org/kiwiproject/validation/DirectoryPath.java

@@ -50,7 +50,7 @@
  * location such as a configuration service, so users should understand the usage risks and mitigate when possible.
  */
 @Documented
-@Constraint(validatedBy = {DirectoryPathValidator.class})
+@Constraint(validatedBy = {})
 @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
 @Retention(RUNTIME)
 public @interface DirectoryPath {

src/main/java/org/kiwiproject/validation/FieldRange.java

@@ -49,7 +49,7 @@
  * single day (again because there is no date component to indicate otherwise), 12:15 AM always comes before 23:56 PM.
  */
 @Documented
-@Constraint(validatedBy = {FieldRangeValidator.class})
+@Constraint(validatedBy = {})
 @Target({TYPE})
 @Retention(RUNTIME)
 @Repeatable(FieldRanges.class)

src/main/java/org/kiwiproject/validation/FilePath.java

@@ -40,7 +40,7 @@
  * location such as a configuration service, so users should understand the usage risks and mitigate when possible.
  */
 @Documented
-@Constraint(validatedBy = {FilePathValidator.class})
+@Constraint(validatedBy = {})
 @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
 @Retention(RUNTIME)
 public @interface FilePath {

src/main/java/org/kiwiproject/validation/InEnum.java

@@ -42,7 +42,7 @@
  * </pre>
  */
 @Documented
-@Constraint(validatedBy = {InEnumValidator.class})
+@Constraint(validatedBy = {})
 @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
 @Retention(RUNTIME)
 public @interface InEnum {

src/main/java/org/kiwiproject/validation/IntValue.java

@@ -19,7 +19,7 @@
  * The annotated element must have a value that can be converted to a Java int or {@link Integer}.
  */
 @Documented
-@Constraint(validatedBy = IntValueValidator.class)
+@Constraint(validatedBy = {})
 @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface IntValue {

src/main/java/org/kiwiproject/validation/Ipv4Address.java

@@ -21,7 +21,7 @@
  * See <a href="https://en.wikipedia.org/wiki/IPv4">IPv4</a> on Wikipedia.
  */
 @Documented
-@Constraint(validatedBy = {Ipv4AddressValidator.class})
+@Constraint(validatedBy = {})
 @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
 @Retention(RUNTIME)
 public @interface Ipv4Address {

src/main/java/org/kiwiproject/validation/Ipv4AndPort.java

@@ -26,7 +26,7 @@
  * range).
  */
 @Documented
-@Constraint(validatedBy = {Ipv4AndPortValidator.class})
+@Constraint(validatedBy = {})
 @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
 @Retention(RUNTIME)
 public @interface Ipv4AndPort {

src/main/java/org/kiwiproject/validation/LongValue.java

@@ -19,7 +19,7 @@
  * The annotated element must have a value that can be converted to a Java long or {@link java.lang.Long}.
  */
 @Documented
-@Constraint(validatedBy = LongValueValidator.class)
+@Constraint(validatedBy = {})
 @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface LongValue {

src/main/java/org/kiwiproject/validation/Range.java

@@ -55,7 +55,7 @@
  * therefore when the {@link RangeValidator} is instantiated.
  */
 @Documented
-@Constraint(validatedBy = {RangeValidator.class})
+@Constraint(validatedBy = {})
 @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
 @Retention(RUNTIME)
 public @interface Range {

src/main/java/org/kiwiproject/validation/Required.java

@@ -32,7 +32,7 @@
  * that method reflectively and use its return value to determine whether the object is empty or not.
  */
 @Documented
-@Constraint(validatedBy = {RequiredValidator.class})
+@Constraint(validatedBy = {})
 @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
 @Retention(RUNTIME)
 public @interface Required {

src/main/resources/META-INF/services/jakarta.validation.ConstraintValidator

@@ -0,0 +1,10 @@
+org.kiwiproject.validation.DirectoryPathValidator
+org.kiwiproject.validation.FieldRangeValidator
+org.kiwiproject.validation.FilePathValidator
+org.kiwiproject.validation.InEnumValidator
+org.kiwiproject.validation.IntValueValidator
+org.kiwiproject.validation.Ipv4AddressValidator
+org.kiwiproject.validation.Ipv4AndPortValidator
+org.kiwiproject.validation.LongValueValidator
+org.kiwiproject.validation.RequiredValidator
+org.kiwiproject.validation.RangeValidator