UseVarForGenericMethodInvocations breaks explicitType argument for nested generic factorymMethod

[jagodevreede]

What version of OpenRewrite are you using?

I am using

• Maven plugin v6.18.0
• rewrite-migrate-java 3.18.0

How are you running OpenRewrite?

I am using the Maven plugin, and my project is a multi module project.

<project>
  <build>
    <plugins>
      <plugin>
        <groupId>org.openrewrite.maven</groupId>
        <artifactId>rewrite-maven-plugin</artifactId>
        <version>6.18.0</version>
        <configuration>
          <exportDatatables>true</exportDatatables>
          <activeRecipes>
            <recipe>org.openrewrite.java.migrate.lang.var.UseVarForGenericMethodInvocations</recipe>
          </activeRecipes>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>org.openrewrite.recipe</groupId>
            <artifactId>rewrite-migrate-java</artifactId>
            <version>3.18.0</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>

What is the smallest, simplest way to reproduce the problem?

public class A<T> {
    void getX(final Root<T> root) {
        Path<T> x = root.get("x");
    }
}
interface Root<X>{
    <Y> Path<Y> get(String var1);
}
interface Path<X> { }

What did you expect to see?

public class A<T> {
    void getX(final Root<T> root) {
        var x = root.<T>get("x");
    }
}
interface Root<X>{
    <Y> Path<Y> get(String var1);
}
interface Path<X> { }

or not converted to var

public class A<T> {
    void getX(final Root<T> root) {
        Path<T> x = root.get("x");
    }
}
interface Root<X>{
    <Y> Path<Y> get(String var1);
}
interface Path<X> { }

What did you see instead?

public class A<T> {
    void getX(final Root<T> root) {
        var x = root.get("x");
    }
}
interface Root<X>{
    <Y> Path<Y> get(String var1);
}
interface Path<X> { }

What is the full stack trace of any errors you encountered?

stacktrace output here

Are you interested in contributing a fix to OpenRewrite?

I will create a draft PR that contains a test, and a regression test that possibly will break if an attempt to fix is being made.
I've also have a patch that is 90% GTP5 that will work, but is has rewritten quite a bit of code, it does work on a large codebase. (That is also where the regression test comes from) Are you interested in this AI solution?