// toolchain you can download and run. In that case fall back to at least
	// checking that the toolchain is new enough for the Go version.
	toolchain := "go" + old
	if wf.Toolchain != nil {
		toolchain = wf.Toolchain.Name
	}
	if gover.IsLang(gover.Local()) {
		toolchain = gover.ToolchainMax(toolchain, "go"+goVers)
	} else {
		toolchain = gover.ToolchainMax(toolchain, "go"+gover.Local())
	}

	// To recap, so far we have built the new toolchain
	// (cmd/asm, cmd/cgo, cmd/compile, cmd/link)
	// using the Go bootstrap toolchain and go command.
	// Then we built the new go command (as go_bootstrap)
	// using the new toolchain and our own build logic (above).
	//
	//	toolchain1 = mk(new toolchain, go1.17 toolchain, go1.17 cmd/go)
	//	go_bootstrap = mk(new cmd/go, toolchain1, cmd/dist)
	//

build:rbe_win_clang --crosstool_top="//tensorflow/tools/toolchains/win/20240424:toolchain"
build:rbe_win_clang --extra_toolchains="//tensorflow/tools/toolchains/win/20240424:cc-toolchain-x64_windows-clang-cl"
build:rbe_win_clang --extra_execution_platforms="//tensorflow/tools/toolchains/win:x64_windows-clang-cl"
build:rbe_win_clang --host_platform="//tensorflow/tools/toolchains/win:x64_windows-clang-cl"

			changes[path] = change{path, old, new}
		}
	}

	// Toolchain diffs are easier than requirements: diff old and new directly.
	toolchainVersions := func(reqs []module.Version) (goV, toolchain string) {
		for _, req := range reqs {
			if req.Path == "go" {
				goV = req.Version
			}
			if req.Path == "toolchain" {
				toolchain = req.Version
			}
		}
		return
	}

==== Toolchain-based tasks for JVM projects

Starting with Gradle 8.0, all core Java tasks that have toolchain support are now using toolchains unconditionally.
If `JavaBasePlugin` is applied, the convention value for tool properties on the task is defined by the toolchain configured on the `java` extension.
In case no toolchains are explicitly configured, the toolchain corresponding to the JVM running Gradle is used.

[[sec:defining_tool_chains]]
=== Defining tool chains

The supported tool chain types are:

* link:{groovyDslPath}/org.gradle.nativeplatform.toolchain.Gcc.html[Gcc]
* link:{groovyDslPath}/org.gradle.nativeplatform.toolchain.Clang.html[Clang]
* link:{groovyDslPath}/org.gradle.nativeplatform.toolchain.VisualCpp.html[VisualCpp]

=== Example: Defining tool chains

[source.multi-language-sample,groovy]
.build.gradle
----

== Upgrading from 8.8 and earlier

=== Potential breaking changes

==== Change to toolchain provisioning

	if v, ok := old.rootSelected("go"); ok {
		roots = append(roots, module.Version{Path: "go", Version: v})
		pathIsRoot["go"] = true
	}
	if v, ok := old.rootSelected("toolchain"); ok {
		roots = append(roots, module.Version{Path: "toolchain", Version: v})
		pathIsRoot["toolchain"] = true
	}
	// We start by adding roots for every package in "all".
	//
	// Once that is done, we may still need to add more roots to cover upgraded or

			} else {
				fatalf("Failed to set GOTRACEBACK: %v", err)
			}
		}
	}

	if t.rebuild {
		t.out("Building packages and commands.")
		// Force rebuild the whole toolchain.
		goInstall(toolenv(), gorootBinGo, append([]string{"-a"}, toolchain...)...)
	}

	if !t.listMode {
		if builder := os.Getenv("GO_BUILDER_NAME"); builder == "" {
			// Ensure that installed commands are up to date, even with -no-rebuild,

import org.apache.maven.session.scope.internal.SessionScope;
import org.apache.maven.session.scope.internal.SessionScopeModule;
import org.apache.maven.toolchain.building.DefaultToolchainsBuildingRequest;
import org.apache.maven.toolchain.building.ToolchainsBuilder;
import org.apache.maven.toolchain.building.ToolchainsBuildingResult;
import org.codehaus.plexus.ContainerConfiguration;
import org.codehaus.plexus.DefaultContainerConfiguration;