ClassNotFoundException: javax.validation.Validation

[John kline]

I am trying to run a very simple app patterned after the Getting Started hello world app and I am running into a ClasNotFound exception when I run the server

Exception in thread "main" java.lang.NoClassDefFoundError: javax/validation/Validation

at com.yammer.dropwizard.validation.Validator.<init>(Validator.java:24)

at com.yammer.dropwizard.cli.ConfiguredCommand.parseConfiguration(ConfiguredCommand.java:76)

at com.yammer.dropwizard.cli.ConfiguredCommand.run(ConfiguredCommand.java:51)

at com.yammer.dropwizard.cli.Cli.run(Cli.java:53)

at com.yammer.dropwizard.Service.run(Service.java:61)

at com.xxx.xxx.atlas.core.ServiceMain.main(ServiceMain.java:18)

Caused by: java.lang.ClassNotFoundException: javax.validation.Validation

at java.net.URLClassLoader$1.run(URLClassLoader.java:366)

at java.net.URLClassLoader$1.run(URLClassLoader.java:355)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:354)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

I noticed the Validator object in drop wizard imports the Javax validator classes, but there is no dependency that is pulled in that includes those classes. My maven dependency is basically: 

        <dependency>

            <groupId>com.yammer.dropwizard</groupId>

            <artifactId>dropwizard-core</artifactId>

            <version>0.6.2</version>

        </dependency>

Any idea why this may be happening? I can pull in the javax Validator myself but that causes another error where a provider can't be found.

(when I add this dependency, there is no class not found exception, but I get a missing validation error instead.)

<dependency>

            <groupId>javax.validation</groupId>

            <artifactId>validation-api</artifactId>

            <version>1.1.0.Final</version>

        </dependency>

[John kline]

User error.

My POM parent had a parent with obsolete versions. Once I cleaned that up, the problem resolved itself.