Module won't start

Development
1

I set up a new module and server based on an sdk project/server creation. I’m running on an imac (Big Sur), using ref app 2.10. SDK: openmrs-sdk-maven-plugin:4.3.0:info

I created the server via sdk. When I attempt to load the module openmrs just indicates it hasn’t started, with no message. I uploaded the source to here

Below is the error message provided in the terminal window. Any help is much appreciated.

Dec 27, 2021 10:09:49 AM org.apache.catalina.core.ApplicationContext log INFO: Initializing Spring FrameworkServlet ‘openmrs_static_content’ Exception in thread “Thread-330” java.lang.LinkageError: loader constraint violation: loader (instance of org/openmrs/module/ModuleClassLoader) previously initiated loading for a different type with name “org/openmrs/module/Extension$MEDIA_TYPE” at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at org.openmrs.module.ModuleClassLoader.loadClass(ModuleClassLoader.java:646) at org.openmrs.module.ModuleClassLoader.loadClass(ModuleClassLoader.java:565) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.openmrs.module.formsmodule.extension.html.AdminList.getMediaType(AdminList.java:29) at org.openmrs.module.Extension.getExtensionId(Extension.java:123) at org.openmrs.module.Module.expandExtensionNames(Module.java:570) at org.openmrs.module.Module.getExtensions(Module.java:492) at org.openmrs.module.ModuleFactory.startModuleInternal(ModuleFactory.java:675) at org.openmrs.api.context.Daemon$1.run(Daemon.java:80)

2

Do you think you can upload the module to GitHub?

3

Many thanks for your quick reply…I’m trying another path which is working so far. If this doesn’t pan out then I’ll upload the module to git and check back in.

4

Did this eventually work

5

Thanks for checking. Currently, all is working well.

6

It greatly helps if you can share how you fixed it. :slightly_smiling_face:

7

Sure…I was able to generate the new server with SDK without a problem (ref app 2.10). Then, I created a new project and added the module to the server. Finally, I copied the java/gsp files to the new module. I have no idea why this was able to get things working??