Hello Thomas/Siyuan/David/Sandeep/Shubham,
The issue was resolved by placing another jar instead of the javaee-api.jar in the apex-engines/lib folder. By pushing hibernate-jpa-api jar , I was able to get around this issue. However this is only a hack and I believe we might see this issue for all apps that have JSR 303 annotations in their code. It looks like Apex is using the classloader of the apex engine that loads only lib folder of the engine to verify the annotations ( annotations related to validation ) and not the application classpath. Thanks all for your time. Regards, Ananth On Thu, May 5, 2016 at 5:35 AM, Ananth Gundabattula <agundabatt...@gmail.com > wrote: > Hello Thomas, > > Thanks for the input. > > I tried both the UI and the command line dtcli client . Both of them are > giving the same exact stack trace error. > > Regards, > Ananth > > On Thu, May 5, 2016 at 5:23 AM, Thomas Weise <thomas.we...@gmail.com> > wrote: > >> Hi Ananth, >> >> One possibility is the bval resolver not considering the context class >> loader when processing the annotation. Do you see the same issue when >> launching the application through the UI? >> >> Thanks, >> Thomas >> >> >> On Mon, May 2, 2016 at 2:35 PM, Ananth Gundabattula < >> agundabatt...@gmail.com> wrote: >> >>> Hello Siyuan, >>> >>> Please find attached the output of the unzip -t command on the apa >>> package. >>> >>> The library jar is indeed present in there. >>> >>> What confuses me here is that the stack trace suggests that it is coming >>> when the engine is validating the App ( and not from my application code). >>> I am suspecting one of the following is causing this : >>> >>> >>> - the bval ( JSR 303 ) jar validation path is somehow conflicting >>> with the JPA validation framework and is causing this issue but am not >>> sure. >>> - CDH 5.7 might have changed restructured a few jars ?? ( I am not >>> sure of this either as I am not sure how Apex uses the underlying Hadoop >>> distribution jars ) >>> >>> Pasting the stack trace once more here for reference: >>> >>> An error occurred trying to launch the application. Server message: >>> java.lang.NoClassDefFoundError: javax/persistence/Persistence at >>> org.apache.bval.jsr303.resolver.JPATraversableResolver.isReachable(JPATraversableResolver.java:34) >>> at >>> org.apache.bval.jsr303.resolver.DefaultTraversableResolver.isReachable(DefaultTraversableResolver.java:60) >>> at >>> org.apache.bval.jsr303.resolver.CachingTraversableResolver.isReachable(CachingTraversableResolver.java:82) >>> at >>> org.apache.bval.jsr303.ConstraintValidation.isReachable(ConstraintValidation.java:241) >>> at >>> org.apache.bval.jsr303.ConstraintValidation.validate(ConstraintValidation.java:166) >>> at >>> org.apache.bval.jsr303.ConstraintValidation.validate(ConstraintValidation.java:141) >>> at >>> org.apache.bval.util.ValidationHelper.validateProperty(ValidationHelper.java:233) >>> at >>> org.apache.bval.util.ValidationHelper.validateBean(ValidationHelper.java:216) >>> at >>> org.apache.bval.jsr303.ClassValidator.validateBeanNet(ClassValidator.java:393) >>> at org.apache.bval.jsr303.ClassValidator.validate(ClassValidator.java:149) >>> at >>> com.datatorrent.stram.plan.logical.LogicalPlan.validate(LogicalPlan.java:1672) >>> at com.datatorrent.stram.StramClient.<init>(StramClient.java:161) at >>> com.datatorrent.stram.client.StramAppLauncher.launchApp(StramAppLauncher.java:509) >>> at com.datatorrent.stram.cli.DTCli$LaunchCommand.execute(DTCli.java:2050) >>> at com.datatorrent.stram.cli.DTCli.launchAppPackage(DTCli.java:3456) at >>> com.datatorrent.stram.cli.DTCli.access$7100(DTCli.java:106) at >>> com.datatorrent.stram.cli.DTCli$LaunchCommand.execute(DTCli.java:1895) at >>> com.datatorrent.stram.cli.DTCli$3.run(DTCli.java:1449) Fatal error >>> encountered >>> >>> >>> >>> >>> Regards, >>> Ananth >>> >>> On Tue, May 3, 2016 at 3:22 AM, hsy...@gmail.com <hsy...@gmail.com> >>> wrote: >>> >>>> Hey Ananth, >>>> >>>> Can you unzip your apa file to see if it is in the lib folder? If it is >>>> not there, it means the packaging is not correct. >>>> >>>> Regards, >>>> Siyuan >>>> >>>> On Mon, May 2, 2016 at 4:39 AM, Ananth Gundabattula < >>>> agundabatt...@gmail.com> wrote: >>>> >>>>> Hello All, >>>>> >>>>> I was able to get around the issue pasted above by manually copying >>>>> the javaee-api-7.0 jar inside the lib folder of Apex engine. It may be >>>>> noted that the code works perfectly fine in a unit test that launches all >>>>> of the operators in the DAG. ( Works end to end ) . However when I launch >>>>> it on CDH 5.7 I run into the exception pasted above. It may be noted that >>>>> the exception is being raised when I launch the app and the Apex engine is >>>>> trying to validate the newly deployed app. >>>>> >>>>> I am suspecting that this could be an issue with incompatibility with >>>>> CDH 5.7 ( The Hadoop stack on which I am trying to run Apex 3.3 on ) >>>>> >>>>> Could anyone help me if they were able to run Apex on top of CDH 5.7. >>>>> I got the same exception with both Apex 3.3 and 3.2. >>>>> >>>>> Regards, >>>>> Ananth >>>>> >>>>> On Sat, Apr 30, 2016 at 11:34 AM, Ananth Gundabattula < >>>>> agundabatt...@gmail.com> wrote: >>>>> >>>>>> Hello All, >>>>>> >>>>>> I am getting the following exception when I launch my Apex app. >>>>>> >>>>>> I tried including javaee-api- version 7.0 as well to get around this >>>>>> error but does not seem to take effect. >>>>>> >>>>>> Any ideas why javax.persistence.Persistence is not getting loaded by >>>>>> the APex engine classloader ? >>>>>> >>>>>> An error occurred trying to launch the application. Server message: >>>>>>> java.lang.NoClassDefFoundError: javax/persistence/Persistence at >>>>>>> org.apache.bval.jsr303.resolver.JPATraversableResolver.isReachable(JPATraversableResolver.java:34) >>>>>>> at >>>>>>> org.apache.bval.jsr303.resolver.DefaultTraversableResolver.isReachable(DefaultTraversableResolver.java:60) >>>>>>> at >>>>>>> org.apache.bval.jsr303.resolver.CachingTraversableResolver.isReachable(CachingTraversableResolver.java:82) >>>>>>> at >>>>>>> org.apache.bval.jsr303.ConstraintValidation.isReachable(ConstraintValidation.java:241) >>>>>>> at >>>>>>> org.apache.bval.jsr303.ConstraintValidation.validate(ConstraintValidation.java:166) >>>>>>> at >>>>>>> org.apache.bval.jsr303.ConstraintValidation.validate(ConstraintValidation.java:141) >>>>>>> at >>>>>>> org.apache.bval.util.ValidationHelper.validateProperty(ValidationHelper.java:233) >>>>>>> at >>>>>>> org.apache.bval.util.ValidationHelper.validateBean(ValidationHelper.java:216) >>>>>>> at >>>>>>> org.apache.bval.jsr303.ClassValidator.validateBeanNet(ClassValidator.java:393) >>>>>>> at >>>>>>> org.apache.bval.jsr303.ClassValidator.validate(ClassValidator.java:149) >>>>>>> at >>>>>>> com.datatorrent.stram.plan.logical.LogicalPlan.validate(LogicalPlan.java:1672) >>>>>>> at com.datatorrent.stram.StramClient.<init>(StramClient.java:161) at >>>>>>> com.datatorrent.stram.client.StramAppLauncher.launchApp(StramAppLauncher.java:509) >>>>>>> at >>>>>>> com.datatorrent.stram.cli.DTCli$LaunchCommand.execute(DTCli.java:2050) >>>>>>> at com.datatorrent.stram.cli.DTCli.launchAppPackage(DTCli.java:3456) at >>>>>>> com.datatorrent.stram.cli.DTCli.access$7100(DTCli.java:106) at >>>>>>> com.datatorrent.stram.cli.DTCli$LaunchCommand.execute(DTCli.java:1895) >>>>>>> at >>>>>>> com.datatorrent.stram.cli.DTCli$3.run(DTCli.java:1449) Fatal error >>>>>>> encountered >>>>>> >>>>>> >>>>>> Regards, >>>>>> Ananth >>>>>> >>>>> >>>>> >>>> >>> >> >
