Does graphlq-kotlin work with spring 2.7.0? I’m us...

# graphql-kotlin

[Robert]

Does graphlq-kotlin work with spring 2.7.0?
I’m using 5.4.1
https://github.com/rowi1de/graphql-reactive/runs/6516519218?check_suite_focus=true#step:5:66

Caused by: java.lang.ClassCastException at SchemaPrinter.java:762

[Dariusz Kuc]

@Saurav Tapader just opened up a PR to bump the dependencies (including spring boot 2.7)

[Saurav Tapader]

needs some approval

[Dariusz Kuc]

that being said -> schema printer is from graphql-java so it kind of looks like you got classpath problem with graphql-java and not spring

[Robert]

I only include implementation("com.expediagroupgraphql kotlin spring server5.4.1")

[Dariusz Kuc]

hmm unsure then, it certainly does look like some classpath issue -> graphql-kotlin 5.4.1 depends on graphql-java 17.2 but it only increments count in the schema printer (https://github.com/graphql-java/graphql-java/blob/v17.2/src/main/java/graphql/schema/idl/SchemaPrinter.java#L762)

In the latest graphql-java (18.1) it attempts to get list of predicates -> https://github.com/graphql-java/graphql-java/blob/v18.1/src/main/java/graphql/schema/idl/SchemaPrinter.java#L762 which used to be Predicate<GraphQLDirective> (in old version) and are now just Predicate<String>

[Dariusz Kuc]

we have pre-release versions out that bump the graphql-java dependency to 18.1 so you could try that

[Dariusz Kuc]

latest -> 6.0.0-alpha.4

[Robert]

Thanks for the hint, worth a try.
It's just a demo project with automated dependabot PRs, which just bumped spring from 2.6.7 to 2.7.0.
Spring now has an own grapql starter based on graphql-java .. maybe this is messing up something?

[Dariusz Kuc]

indeed good callout

[Dariusz Kuc]

yeah thats probably it

[Robert]

I don't include that starter but could think something in spring boot itself could do some autoconfiguration because some graphql-java is on the classpath… just guessing, would need to check later

[Dariusz Kuc]

try debugging your classpath to see where it comes from

[Robert]

id("io.spring.dependency-management") version "1.0.11.RELEASE"

here it comes from

[Robert]

com.expediagroup:graphql-kotlin-spring-server:6.0.0-alpha.4

works again

[Dariusz Kuc]

I dont think you need the spring dep management plugin (wasnt this an old deprecated way? I think you can import boms using platform dep)

[Robert]

https://start.spring.io/#!type=gradle-project&amp;language=kotlin&amp;platformVersion=2.7.0&amp;packaging=jar&amp;jvmVersion=17&amp;groupId=com.example&amp;artifactId=demo&amp;name=demo&amp;description=Demo%20project%20for%20Spring%20Boot&amp;packageName=com.example.demo<https://start.spring.io/#!type=gradle-project&language=kotlin&platformVersion=2.7.0&packaging=jar&jvmVersion=17&groupId=com.example&artifactId=demo&name=demo&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.demo|

I think it's up to date

[Dariusz Kuc]

Yeah they still publish it but I think using bom natively (through platform) is generally preferred option

[Robert]

That would make it easier, good to know 👍🏻