Update the GSON version as you're doing - Ahmad is in the process of making 
this change in GWT itself:
https://github.com/gwtproject/gwt/pull/10079
https://github.com/gwtproject/tools/pull/34

In the next GWT release, we'll default to using 2.11.0.

That said... you should not have gwt-dev on the same classpath as your 
server, and you should not remove gson from gwt-dev, or you may have 
compilation issues with sourcemaps.

The tweak you're making is totally acceptable to make to gwt-servlet (or 
gwt-servlet-jakarta) though - either exclude if you don't use the stack 
trace deobfuscator with sourcemaps, or just update to 2.11.0.

On Wednesday, January 8, 2025 at 8:28:39 PM UTC-6 [email protected] 
wrote:

> When upgrading from Spring Boot 3.3 to 3.4, my app still compiles, but 
> when I run it, crashes with:
>
> Error starting ApplicationContext. To display the condition evaluation 
> report re-run your application with 'debug' enabled.
> [2025-01-09 12:36:47.028] - 13568 SEVERE [restartedMain] --- 
> org.springframework.boot.SpringApplication: Application run failed
> java.lang.NoClassDefFoundError: com/google/gson/Strictness
>
> Others have reported the same issue, but with different causes:  
> https://github.com/spring-projects/spring-boot/issues/43442
>
> When I look at who is using GSON, it's gwt-dev.jar:
>
> [INFO] teamdrift:drift-team-client:gwt-app:1.0-SNAPSHOT
> [INFO] +- org.gwtproject:gwt-dev:jar:2.12.1:compile
> [INFO] |  +- com.google.code.gson:gson:jar:2.6.2:compile
>
> I can fix it by adding the newer version to my server:
> <dependency>
>   <groupId>com.google.code.gson</groupId>
>   <artifactId>gson</artifactId>
>   <version>2.11.0</version>
> </dependency>
>
> And optionally, to clean up so the old version, remove it from my client 
> gwt-dev:
> <dependency>
>   <groupId>org.gwtproject</groupId>
>   <artifactId>gwt-dev</artifactId>
>   <exclusions>
>     <exclusion>
>       <groupId>com.google.code.gson</groupId>
>       <artifactId>gson</artifactId>
>     </exclusion>
>   </exclusions>
> </dependency>
>
> Is this the best fix?  Or is there something better?
>
> Thanks.
>

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