Random error while loading beans from neo4j

[dmichels]

Hi,

sometimes I get an error while trying to load a bean from the database. Not always, but somtimes.

[error] play - Cannot invoke the action, eventually got an error: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
[error] application -

! @6gfdalfig - Internal server error, for (POST) [/authenticate] ->

play.api.Application$$anon$1: Execution exception[[RuntimeException: java.lang.reflect.InvocationTargetException]]
at play.api.Application$class.handleError(Application.scala:293) ~[play_2.10.jar:2.2.1]
at play.api.DefaultApplication.handleError(Application.scala:399) [play_2.10.jar:2.2.1]
at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$2$$anonfun$applyOrElse$3.apply(PlayDefaultUpstreamHandler.scala:261) [play_2.10.jar:2.2.1]
at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$2$$anonfun$applyOrElse$3.apply(PlayDefaultUpstreamHandler.scala:261) [play_2.10.jar:2.2.1]
at scala.Option.map(Option.scala:145) [scala-library.jar:na]
at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$2.applyOrElse(PlayDefaultUpstreamHandler.scala:261) [play_2.10.jar:2.2.1]
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at play.data.Form.bind(Form.java:391) ~[play-java_2.10.jar:2.2.1]
at play.data.Form.bindFromRequest(Form.java:215) ~[play-java_2.10.jar:2.2.1]
at controllers.Application.authenticate(Application.java:95) ~[na:na]
at Routes$$anonfun$routes$1$$anonfun$applyOrElse$5$$anonfun$apply$5.apply(routes_routing.scala:97) ~[na:na]
at Routes$$anonfun$routes$1$$anonfun$applyOrElse$5$$anonfun$apply$5.apply(routes_routing.scala:97) ~[na:na]
at play.core.Router$HandlerInvoker$$anon$7$$anon$2.invocation(Router.scala:183) ~[play_2.10.jar:2.2.1]
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_45]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_45]
at play.data.Form.bind(Form.java:388) ~[play-java_2.10.jar:2.2.1]
at play.data.Form.bindFromRequest(Form.java:215) ~[play-java_2.10.jar:2.2.1]
Caused by: java.lang.ClassCastException: neo4j.models.User cannot be cast to neo4j.models.User
at neo4j.services.UserService.authenticate(UserService.java:24) ~[na:na]
at controllers.Application$Login.validate(Application.java:60) ~[na:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_45]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_45]

It's strange that he can't cast from neo4j.models.User to neo4j.models.User.

public boolean authenticate(final String name, final String password) {
    User user = userRepository.findByPropertyValue(User.NAME, name);

    return (user != null && user.password.equals(password));
}

But like I said: It fails randomly.

[tuxBurner]

Hi @dmichels,

thanks for the report. I will try to reproduce this. One question, are you using neo4j in embedded or remote mote ?

[dmichels]

Hi,

I'm using neo4j in remote mode

[dmichels]

Hi,
I think I hunted down the problem, the error occurs every time when I modified something on the code and Play reloads. Seems like the plugin doesn't get reloaded probably and the Class versions of the Play instance and the plugin differ.

[tuxBurner]

Hi,
thanks i will take a look @ it tomorrow.

[unterstein]

Hi Sepp,

i have the same error. Its not randomly, it occurs each time after redeployment (onStop/onStart cycle) after changing a file locally. This bug happens each time sine the 1.3.0 version. This issue never occurs in the past versions like the 1.1.1. Can you please have a look? :) I guess something is not shutdown correctly. I have an additional stacktrace:

Caused by: org.springframework.dao.InvalidDataAccessApiUsageException: object is not an instance of declaring class; nested exception is java.lang.IllegalArgumentException: object is not an instance of declaring class
at org.springframework.data.neo4j.support.Neo4jExceptionTranslator.translateExceptionIfPossible(Neo4jExceptionTranslator.java:47) ~[spring-data-neo4j-3.0.0.M1.jar:na]
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:58) ~[spring-tx-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213) ~[spring-tx-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:163) ~[spring-tx-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) ~[spring-aop-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) ~[spring-aop-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at $Proxy45.findByName(Unknown Source) ~[na:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_11]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_11]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_11]
at java.lang.reflect.Method.invoke(Method.java:601) ~[na:1.7.0_11]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) ~[spring-aop-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198) ~[spring-aop-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at $Proxy46.findByName(Unknown Source) ~[na:na]
at Global$.initData(Global.scala:16) ~[na:na]

Cheers,
Jo

[tuxBurner]

Oh :(

Forgot this one over my vacations 📦

Will take a look at it tomorrow :P

[tuxBurner]

Okay problem found :)
Seems to be this problem: https://groups.google.com/forum/#!topic/play-framework/73_CijiIxWA
All entities are stuck in the reloadable class loader v1 :( I am still trying to find the fix for this but spring and classloader .... is a stoy

[tuxBurner]

Nailed it org.springframework.data.repository.core.support.RepositoryFactorySupport#getRepositoryInformation has a nice cache !!11!!! the metadata comes from the correct classloader but the cache holds the old one omfg

[tuxBurner]

https://jira.springsource.org/browse/DATACMNS-395 well i think here it broke :)

[tuxBurner]

Bugreport at spring data is open https://jira.springsource.org/browse/DATACMNS-395#comment-96947

[unterstein]

Hi,

is it possible to invalide the cache programmatically onStop of the playApp?

Cheers

[tuxBurner]

Okay version 1.3.1 fixes this one have fun guys