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Jackson jar issues

See original GitHub issue

Please see the following AWS SDK Java v1 issue comment for complete bug report, context and example code: https://github.com/aws/aws-sdk-java/issues/1120#issuecomment-635132880 (opening this issue over here since I’m observing this issue while using AWS SDK for Java v2):

In a nutshell:

Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.core.JsonFactory
	at jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581) ~[?:?]
	at jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[?:?]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:522) ~[?:?]

And when trying to bump the jackson xml version separatedly (instead of relying on the AWS SDK jar dependency):

java.lang.module.FindException: Two versions of module com.fasterxml.jackson.core found in ./build/IGV-MacApp-dist/IGV_user.app/Contents/MacOS/../Java/lib (jackson-core-2.11.0.jar and jackson-core-2.10.4.jar)

None of this happened before with SDK version 2.8.5.

/cc @reisingerf

Issue Analytics

State:
Created 3 years ago
Comments:13 (5 by maintainers)

Top GitHub Comments

2reactions

brainstormcommented, Jun 6, 2020

Thanks for the pointers, @davideby, made me think a bit about it and found the issue on https://github.com/igvteam/igv/pull/811/commits/90edd1e8ec9eb123eed45f8e1daf7e12227315af#diff-b2e60e6dba0d888da1bf8248dbbc287dR43 … although it shouldn’t be needed to put that AWS transitive dependency on modules-info.java, it looks like it solved the NoClassDefFoundError issue.

@debora-ito Any idea why that fastxml require is required in module-info.java now? It definitely wasn’t needed before and IGV does not use it anywhere, so it only comes from the AWS SDK 😒

/cc @reisingerf

1reaction

debora-itocommented, Jun 4, 2020

Thank you for the scans, I don’t see any version conflicts of jackson-core and I don’t know what else could it be. Have you tried cleaning up the dependency cache and forcing gradle to download them again?

Update: I edited your comment with the dependency tree, made it collapsible, makes it easier to scroll down the thread.

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