its value is derived from three sources:
the defaults for the Go toolchain used to build the program,
amended to match the Go version listed in `go.mod`,
and then overridden by explicit `//go:debug` lines in the program.

The [GODEBUG History](#history) gives the exact defaults for each Go toolchain version.
For example, Go 1.21 introduces the `panicnil` setting,
controlling whether `panic(nil)` is allowed;

              <exclude>org.apache.maven.toolchain.DefaultToolchain#getLog():METHOD_RETURN_TYPE_CHANGED</exclude>
              <exclude>org.apache.maven.toolchain.DefaultToolchain#DefaultToolchain(org.apache.maven.toolchain.model.ToolchainModel,org.codehaus.plexus.logging.Logger):CONSTRUCTOR_REMOVED</exclude>

            .withBinding("packageNameChoice", packageNameChoice)
            .withBinding("subprojectName", settings.subprojects.first())
            .withBinding("toolChain", toolChain)
            .withBinding("exampleClass", exampleClass)
            .withBinding("sourceFile", sourceFile)
            .withBinding("testSourceFile", testSourceFile)

    <exportedPackage>org.apache.maven.rtinfo.*</exportedPackage>
    <exportedPackage>org.apache.maven.settings</exportedPackage>
    <exportedPackage>org.apache.maven.toolchain</exportedPackage>
    <exportedPackage>org.apache.maven.usability</exportedPackage>


    <!-- wagon-api -->
    <exportedPackage>org.apache.maven.wagon.*</exportedPackage>

import org.apache.maven.rtinfo.RuntimeInformation;
import org.apache.maven.session.scope.internal.SessionScope;
import org.apache.maven.toolchain.DefaultToolchainManagerPrivate;
import org.apache.maven.toolchain.building.ToolchainsBuilder;
import org.codehaus.plexus.PlexusContainer;
import org.codehaus.plexus.component.repository.exception.ComponentLookupException;

#
# We can't test on the windows toolchains because they're using a legacy
# toolchain format (or something) that specifies the toolchain directly instead
# of as a "repository". They can't be valid on Linux because Linux can't do
# anything with a Windows-only toolchain, and bazel errors if trying to build
# that directory.
@test "bazel nobuild passes on all of TF except TF Lite and win toolchains" {

#
# We can't test on the windows toolchains because they're using a legacy
# toolchain format (or something) that specifies the toolchain directly instead
# of as a "repository". They can't be valid on Linux because Linux can't do
# anything with a Windows-only toolchain, and bazel errors if trying to build
# that directory.
@test "bazel nobuild passes on all of TF except TF Lite and win toolchains" {

You can then replace the existing file with this new downloaded version. 
### Java Toolchain

The Gradle build uses [Java Toolchain](https://docs.gradle.org/current/userguide/toolchains.html) support to compile and execute tests across multiple versions of Java.

     * @since 3.2.0
     */
    String getBuilderId();

    /**
     *
     * @param toolchains all toolchains grouped by type
     * @return this request
     * @since 3.3.0
     */
    MavenExecutionRequest setToolchains(Map<String, List<ToolchainModel>> toolchains);

    /**
     *
     * @return all toolchains grouped by type, never {@code null}
     * @since 3.3.0
     */

    public Map<String, List<ToolchainModel>> getToolchains() {
        if (toolchains == null) {
            toolchains = new HashMap<>();
        }
        return toolchains;
    }

    @Override
    public MavenExecutionRequest setToolchains(Map<String, List<ToolchainModel>> toolchains) {
        this.toolchains = toolchains;
        return this;
    }

    @Deprecated
    @Override