It looks like a recent change is causing what is technically a version conflict in GWT when used from maven. A project I work on uses the maven-enforcer-plugin to avoid conflicts, and in a rebuild this morning we ran into this error.
[INFO] --- maven-enforcer-plugin:1.4.1:enforce (enforce) @ gwt-project --- [WARNING] Dependency convergence error for org.ow2.asm:asm-commons:5.0.3 paths to dependency are: +-colins.super.duper:gwt-project:0.0.1-SNAPSHOT +-com.google.gwt:gwt-dev:2.8.0-SNAPSHOT +-org.ow2.asm:asm-commons:*5.0.3* and +-colins.super.duper:gwt-project:0.0.1-SNAPSHOT +-com.google.gwt:gwt-dev:2.8.0-SNAPSHOT +-org.eclipse.jetty:jetty-annotations:9.2.14.v20151106 +-org.ow2.asm:asm-commons:*5.0.1* This appears to have been introduced in https://gwt-review.googlesource.com/#/c/14461/, though it could have been earlier. I'm not familiar with how exactly we settled on 5.0.1, and if we must use that (and override jetty...), or if we can upgrade to 5.0.3 and not risk affecting jetty. Locally, I'm overriding this by excluding asm-commons from my gwt-dev dependencies, and requiring 5.0.3, which seems to be working (minus a jsinterop issue, which I am now hunting...). Thoughts on which version we should require? I can make the patch once I have feedback. -- You received this message because you are subscribed to the Google Groups "GWT Contributors" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit-contributors+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-web-toolkit-contributors/6a916e9c-6757-4d18-9db3-f100bc1aa206%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.