this.compileOptions = compileOptions;
        this.toolchain = toolchain;
    }

    @Override
    public T create() {
        if (toolchain != null) {
            return chooseSpecForToolchain();
        }

        if (compileOptions.isFork()) {
            return chooseSpecFromCompileOptions(Jvm.current().getJavaHome());
        }

        then:
        failureDescriptionStartsWith("Execution failed for task ':run'.")
        failureHasCause("Toolchain from `executable` property does not match toolchain from `javaLauncher` property")
    }

    def "fails on toolchain and executable mismatch (without application plugin)"() {
        def jdkCurrent = Jvm.current()
        def jdkOther = AvailableJavaHomes.differentVersion

import static org.gradle.jvm.toolchain.JavaToolchainDownloadSoakTest.JAVA_VERSION
import static org.gradle.jvm.toolchain.JavaToolchainDownloadSoakTest.TOOLCHAIN_WITH_VERSION
import static org.gradle.jvm.toolchain.JavaToolchainDownloadUtil.applyToolchainResolverPlugin
import static org.gradle.jvm.toolchain.JavaToolchainDownloadUtil.multiUrlResolverCode
import static org.gradle.jvm.toolchain.JavaToolchainDownloadUtil.singleUrlResolverCode

        def root = rootCause(e)
        root.message.startsWith(targetVersion >= GradleVersion.version("8.8") ?
            'No matching toolchain could be found in the locally installed toolchains' :
            'No locally installed toolchains match')
    }

    def rootCause(Exception e) {
        def ex = e
        while (ex.cause != null) {
            ex = ex.cause
        }
        ex
    }

import org.gradle.jvm.toolchain.internal.IntellijInstallationSupplier;
import org.gradle.jvm.toolchain.internal.JabbaInstallationSupplier;
import org.gradle.jvm.toolchain.internal.JavaToolchainQueryService;
import org.gradle.jvm.toolchain.internal.JdkCacheDirectory;
import org.gradle.jvm.toolchain.internal.LinuxInstallationSupplier;
import org.gradle.jvm.toolchain.internal.MavenToolchainsInstallationSupplier;

            <includes>
              <include>org.apache.maven.toolchain.building</include>
              <include>org.apache.maven.toolchain.io</include>
              <include>org.apache.maven.toolchain.io.xpp3</include>
              <include>org.apache.maven.toolchain.merge</include>
            </includes>
            <excludes>

			gover.Startup.AutoToolchain = toolchain
		} else {
			if toolchain != "" {
				// Accept toolchain only if it is > our min.
				// (If it is equal, then min satisfies it anyway: that can matter if min
				// has a suffix like "go1.21.1-foo" and toolchain is "go1.21.1".)
				toolVers := gover.FromToolchain(toolchain)
				if toolVers == "" || (!strings.HasPrefix(toolchain, "go") && !strings.Contains(toolchain, "-go")) {

                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug("Java Toolchain auto-detection failed to parse Maven Toolchains located at {}", toolchainFile, e);
                } else {
                    LOGGER.info("Java Toolchain auto-detection failed to parse Maven Toolchains located at {}. {}", toolchainFile, e.getMessage());
                }
            }
        }

// If Switch decides to switch toolchains but cannot identify a toolchain to use.
// it prints the errors along with one more about not being able to find the toolchain
// and returns.
//
// Otherwise, Switch prints an informational message giving a reason for the
// switch and the toolchain being invoked and then switches toolchains.
// This operation never returns.
func (s *Switcher) Switch(ctx context.Context) {
	if !s.NeedSwitch() {

        when: "build has no toolchain repositories configured"
        settingsFile.text = ''

        then: "build runs again, uses previously auto-provisioned toolchain and warns about toolchain repositories not being configured"
        executer
                .expectDocumentedDeprecationWarning("Using a toolchain installed via auto-provisioning, but having no toolchain repositories configured. " +