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You generate code and then try to compile it without adding the necessary dependencies like

com.linkedin.pegasus:data

. One of the missing classes is

javax.annotation.Generated

which was present in the standard JRE up to but was removed some time ago. And as you run the build with Java 17 and probably do not use the JVM toolchains feature it is missing. For that class, you either need to compile with an older Java by running Gradle with an older Java or better using the JVM toolchains feature, or you can add the

javax.annotation:javax.annotation-api

compileOnly

dependency, where this annotation is still provided in.

I have used toolchain feature as given below

tasks.withType(Test).configureEach {
  javaLauncher = javaToolchains.launcherFor {
    languageVersion = JavaLanguageVersion.of(17)
  }
}

That's not much relevant. That just sets the launcher for executing tests.

can you please elaborate how to use jvn toolchain feature

https://docs.gradle.org/current/userguide/toolchains.html For example

java {
    toolchain {
        languageVersion.set(JavaLanguageVersion.of(8))
    }
}

okey i will try on it.

Sure there is change

I have tried it but still stuck in the Error, so like can you suggest me if there is any alternative for pegasus that support for java 17 or did I have to downgrade java for particular module? if Yes then How?