Migrating to ltgt gwt-maven-plugin causes compile problem with HibernateValidation

Hi all,

I'm in the progress of modularising a GWT app and migrating it to use the newer ltgt gwt-maven-plugin. I have a GWT module which compiles correctly using the old gwt-maven-plugin, but fails with the following errors using the new gwt-maven-plugin:

[INFO] --- gwt-maven-plugin:1.0.1:compile (default-compile) @ gwt-portal ---
[INFO] Compiling module com.inspectivity.portal.Portal
[INFO]    Tracing compile failure path for type 'com.inspectivity.portal.client.validation.CustomValidatorFactory'
[INFO]       [ERROR] Errors in 'file:/Users/thomas/dev-private/inspectivity-modules/gwt-portal/src/main/java/com/inspectivity/portal/client/validation/CustomValidatorFactory.java'
[INFO]          [ERROR] Line 31: The method getParameterNameProvider() of type CustomValidatorFactory must override or implement a supertype method
[INFO]          [ERROR] Line 36: The method close() of type CustomValidatorFactory must override or implement a supertype method
[INFO]    Tracing compile failure path for type 'org.hibernate.validator.engine.PathImpl'
[INFO]       [ERROR] Errors in 'jar:file:/Users/thomas/.m2/repository/com/google/gwt/gwt-user/2.8.2/gwt-user-2.8.2.jar!/org/hibernate/validator/super/org/hibernate/validator/engine/PathImpl.java'
[INFO]          [ERROR] Line 72: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 84: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 131: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 202: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 95: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 127: NodeImpl cannot be resolved to a type
[INFO]    Tracing compile failure path for type 'org.hibernate.validator.engine.ConstraintViolationImpl_CustomFieldSerializer'
[INFO]       [ERROR] Errors in 'jar:file:/Users/thomas/.m2/repository/com/google/gwt/gwt-user/2.8.2/gwt-user-2.8.2.jar!/org/hibernate/validator/engine/ConstraintViolationImpl_CustomFieldSerializer.java'
[INFO]          [ERROR] Line 100: The method instantiate(SerializationStreamReader) from the type ConstraintViolationImpl_CustomFieldSerializer refers to the missing type ConstraintViolationImpl
[INFO]          [ERROR] Line 37: ConstraintViolationImpl cannot be resolved to a type
[INFO]          [ERROR] Line 73: ConstraintViolationImpl cannot be resolved to a type
[INFO]          [ERROR] Line 32: The type ConstraintViolationImpl_CustomFieldSerializer must implement the inherited abstract method CustomFieldSerializer<ConstraintViolationImpl>.deserializeInstance(SerializationStreamReader, ConstraintViolationImpl)
[INFO]          [ERROR] Line 33: ConstraintViolationImpl cannot be resolved to a type
[INFO]          [ERROR] Line 32: The type ConstraintViolationImpl_CustomFieldSerializer must implement the inherited abstract method CustomFieldSerializer<ConstraintViolationImpl>.serializeInstance(SerializationStreamWriter, ConstraintViolationImpl)
[INFO]          [ERROR] Line 41: ConstraintViolationImpl cannot be resolved to a type
[INFO]          [ERROR] Line 105: ConstraintViolationImpl cannot be resolved to a type
[INFO]          [ERROR] Line 88: ConstraintViolationImpl cannot be resolved to a type
[INFO]          [ERROR] Line 53: ConstraintViolationImpl cannot be resolved to a type
[INFO]          [ERROR] Line 98: ConstraintViolationImpl cannot be resolved to a type
[INFO]    Tracing compile failure path for type 'org.hibernate.validator.engine.ValidationSupport'
[INFO]       [ERROR] Errors in 'jar:file:/Users/thomas/.m2/repository/com/google/gwt/gwt-user/2.8.2/gwt-user-2.8.2.jar!/org/hibernate/validator/engine/ValidationSupport.java'
[INFO]          [ERROR] Line 43: ConstraintViolationImpl cannot be resolved to a type
[INFO]       [ERROR] Errors in 'jar:file:/Users/thomas/.m2/repository/com/google/gwt/gwt-user/2.8.2/gwt-user-2.8.2.jar!/org/hibernate/validator/super/org/hibernate/validator/engine/PathImpl.java'
[INFO]          [ERROR] Line 72: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 84: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 131: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 202: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 95: NodeImpl cannot be resolved to a type
[INFO]          [ERROR] Line 127: NodeImpl cannot be resolved to a type
[INFO]    [ERROR] Aborting compile due to errors in some input files

I'm using GWT 2.8.2 and here's a fragment of my POM for the module:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

    <parent>
        <groupId>com.inspectivity</groupId>
        <artifactId>inspectivity</artifactId>
        <version>...</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>

    <artifactId>gwt-portal</artifactId>
    <packaging>gwt-app</packaging>

    <name>gwt-portal</name>

    <properties>
        <app.version>${project.parent.version}</app.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <webappDirectory>${project.build.directory}/web-exploded</webappDirectory>
    </properties>

    <dependencies>
        ....
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt-servlet</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt-dev</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt-user</artifactId>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>5.2.5.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>5.2.5.Final</version>
            <classifier>sources</classifier>
        </dependency>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>1.1.0.Final</version>
        </dependency>
        ...
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>net.ltgt.gwt.maven</groupId>
                <artifactId>gwt-maven-plugin</artifactId>
                <configuration>
                    <moduleName>com.inspectivity.portal.Portal</moduleName>
                </configuration>
            </plugin>


            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

Thanks a lot for any hint!

Cheers,

Thomas

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