The import org.hibernate.validator.Length cannot be resolved?

Question

Here is my pom:

<dependencies>
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-core</artifactId>
            <version>2.3.16</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.9</version>
        </dependency>

        <dependency>
            <groupId>com.google.code</groupId>
            <artifactId>struts2-fullhibernatecore-plugin</artifactId>
            <version>2.2.2-GA</version>
        </dependency>

         <!-- validation -->
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>1.1.0.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>4.2.0.Final</version>
        </dependency>
        <!-- for annotations like @Entity,@Table -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-annotations</artifactId>
            <version>3.4.0.GA</version>
        </dependency>

        <!-- dependencies of hibernate-core -->
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.2.1</version>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

How to resolve this error :

The import org.hibernate.validator.Length cannot be resolved

Edit :

[ERROR]   symbol:   class Length
  location: class User

Thank you!

score 3 · Answer 1 · answered Feb 03 '14 at 14:53

3

Since you have the hibernate-validator dependency set, you will have to run

mvn clean install

in order to get it added to the classpath.

answered Feb 03 '14 at 14:53

Konstantin Yovkov

62,134
8
100
147

When I run it shows compilation errors that my imports are not resolved. See edit. – Volodymyr Levytskyi Feb 03 '14 at 14:57
Did you run `mvn clean install` ? – Konstantin Yovkov Feb 03 '14 at 14:57
Yes I did. And this caused the error. I ran that on pom.xml I provided in my question. – Volodymyr Levytskyi Feb 03 '14 at 14:59
In eclipse I search for this annotation with Ctrl+T and it doesn't find it. Maybe it's needed to add another jar – Volodymyr Levytskyi Feb 03 '14 at 15:02
You can open `Project Properties -> Deployment Assembly` and then add the Maven Libraries. Then try again to import it. – Konstantin Yovkov Feb 03 '14 at 15:08

score 2 · Accepted Answer · answered Feb 03 '14 at 15:11

2

You seem to be missing the constraints package name in your code

import org.hibernate.validator.constraints.Length;

answered Feb 03 '14 at 15:11

Reimeus

158,255
15
216
276

Yes. For previous versions of hibernate-annotations.jar it was ok but after I changed the version to 3.4.0.GA the path has changed. – Volodymyr Levytskyi Feb 03 '14 at 15:16
Please, tell me also where `@Valid` annotation was shifted from `org.hibernate.validator` package. – Volodymyr Levytskyi Feb 03 '14 at 15:20
You mean `javax.validation.Valid`. It's part of the `validation-api` which you have already :) – Reimeus Feb 03 '14 at 15:23
Not I mean `org.hibernate.validator.Valid`. It is used to tell struts that this object has hibernate constraints. – Volodymyr Levytskyi Feb 03 '14 at 15:26
I tries `javax.validation.Valid` and it doesn't work. – Volodymyr Levytskyi Feb 03 '14 at 15:42
Comparing the 2 annotations they appear identical and very simple - it would seem like that that one (from JSR 303) is intended to replace the old hibernate version. Probably best to post a new question to include these new (& different) errors – Reimeus Feb 03 '14 at 15:45
I posted this question [here](http://stackoverflow.com/questions/21532136/how-to-trigger-validation-with-valid-annotation-in-struts2) – Volodymyr Levytskyi Feb 03 '14 at 16:28

The import org.hibernate.validator.Length cannot be resolved?

2 Answers2