Question Re: Load run time libraries on to SAP Tomcat 8 before the Java application starts in Technology Q&A

Load run time libraries on to SAP Tomcat 8 before the Java application starts

Former Member — Tue, 12 Feb 2019 07:57:41 GMT

I have a requirement where I have to load a few runtime libraries on to Cloud Tomcat / TomEE server before the application starts. How do I do that in the SAP Cloud platform Neo environment? I tried loading them from WEB-INF/lib folder but my Application is starting before the libraries get loaded and throwing me a NoClassDefFoundError. Could anyone please help me out here.

Re: Load run time libraries on to SAP Tomcat 8 before the Java application starts

Ivan-Mirisola — Tue, 12 Feb 2019 14:41:25 GMT

Is this happening when you try to run it locally or when you deploy it to SCP-Neo?

Re: Load run time libraries on to SAP Tomcat 8 before the Java application starts

Former Member — Tue, 12 Feb 2019 16:17:09 GMT

Hi Ivan,

This is happening when I deploy the application to SCP-Neo. In local also, this is not working. But this is working when I add the libraries to lib folder in SDK. Could you please let me know how to proceed over this.

Re: Load run time libraries on to SAP Tomcat 8 before the Java application starts

Ivan-Mirisola — Wed, 13 Feb 2019 11:58:57 GMT

1) Could you please share your pom.xml

2) Could you please share how you are generating the war file

3) If not using maven, please let us know how you've created the project and which IDE you are using.

My two cents on this: if you are not using a maven project or the correct eclipse project type, the libraries aren't being loaded into the correct places and when you build your war file the lib folder may be empty. There is also the possibility that you are using the wrong lib path in contrast to the one configured by eclipse while using a faceted project.

Re: Load run time libraries on to SAP Tomcat 8 before the Java application starts

Former Member — Tue, 26 Feb 2019 13:11:47 GMT

Hi Ivan,

It looks like SAP Tomcat Web Profile server is a Web profile and not a Full Profile server so it doesn't have JMS support which we are explicitly trying to achieve. So going through different blogs, we came to a conclusion that we won't be able to have Enterprise messaging in SAP Cloud Neo environment. Thanks for your help.

Regards,

Sai Tharun

Re: Load run time libraries on to SAP Tomcat 8 before the Java application starts

Ivan-Mirisola — Tue, 26 Feb 2019 19:28:39 GMT

Hi M M Sai,

Enterprise Messaging with JMS can be achieved either via:

JMS adapter SAP Cloud Integration service on SCP-Neo.
JMS RabbitMQ on SCP-CF

Best regards,
Ivan