Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

NPE in JBossClassLoaderHandler#findClasspathOrder

See original GitHub issue

In our scenario we get a NullPointerException in JBossClassLoaderHandler#findClasspathOrder

The moduleMap is null in our case, leading to an NPE in the next line, when accessing the entrySet.

https://github.com/classgraph/classgraph/blob/f874380e58ac3e9e4834df199129a58c79d15f33/src/main/java/nonapi/io/github/classgraph/classloaderhandler/JBossClassLoaderHandler.java#L213-L215

I was able to fix this with a simple null check. The scan returns the expected results.

Before: for (final Entry<Object, Object> ent : moduleMap.entrySet() ) {

After: Set<Entry<Object, Object>> moduleMapEntries = moduleMap != null ? moduleMap.entrySet() : Collections.emptySet(); for (final Entry<Object, Object> ent : moduleMapEntries) {

Issue Analytics

State:
Created 2 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

1reaction

arthwarecommented, Feb 17, 2022

Thank you for merging and your efforts!

0reactions

lukehutchcommented, Feb 24, 2022

OK, I was able to push out version 4.8.140 with this fix. I probably should have just done this after merging. Thanks again for your fix!

Top Results From Across the Web

Chapter 6. JBoss EAP Class Loading - Red Hat Customer Portal

The modular class loader separates all Java classes into logical groups called modules. Each module can define dependencies on other modules in order...

Manipulating class-path order jboss-deployment-structure.xml

In JBoss AS 6 the classpath of the jars contained within the deployment can be directly manipulated using the jboss-structure. xml file, ...

Spring Boot Reference Documentation

Check the spring.io web-site for a wealth of reference documentation. ... To do so, include the appropriate spring-boot-*.jar files on your classpath.

Reverse classload order on a Java thread - Stack Overflow

You can try creating your own customer class loader to do the look up in reverse order from the class path and set...

jBPM Documentation - Index of /

For other task types, including all custom tasks, when the task must be executed the jBPM engine executes a call using the Work...