* A spec that is not configured always directly matches the toolchain of the current JVM.
     */
    boolean isConfigured();

    /**
     * A spec is valid when {@link #getLanguageVersion() language version} is set (along with any other properties)
     * or when no properties are set.
     * <p>
     * A {@link #isConfigured() non-configured} spec is always valid.
     */
    boolean isValid();

    /**

    }

    @Override
    public Key toKey() {
        return new Key(javaHome);
    }

    @Override
    public boolean isConfigured() {
        return true;
    }

    @Override
    public boolean isValid() {
        return true;
    }

    public File getJavaHome() {
        return javaHome;
    }

    @Override

    public JavaToolchainSpecInternal.Key toKey() {
        return new Key(getLanguageVersion().getOrNull(), getVendor().getOrNull(), getImplementation().getOrNull());
    }

    @Override
    public boolean isConfigured() {
        return getLanguageVersion().isPresent();
    }

    @SuppressWarnings("deprecation")
    @Override
    public boolean isValid() {
        if (getVendor().getOrNull() == JvmVendorSpec.IBM_SEMERU) {

                .withUpgradeGuideSection(7, "invalid_toolchain_specification_deprecation")
                .build();
        }

        boolean useFallback = !requestedSpec.isConfigured();
        JavaToolchainSpecInternal actualSpec = useFallback ? fallbackToolchainSpec : requestedSpec;
        // We can't use the key of the fallback toolchain spec, because it is a spec that can match configured requests as well

    }

    @Override
    public JavaVersion getSourceCompatibility() {
        if (srcCompat != null) {
            return srcCompat;
        } else if (toolchainSpec != null && toolchainSpec.isConfigured()) {
            return JavaVersion.toVersion(toolchainSpec.getLanguageVersion().get().toString());
        } else {
            return JavaVersion.current();
        }
    }

            ToolchainFactory fact = factories.get(type);

            if (fact == null) {
                logger.error(
                        "Missing toolchain factory for type: " + type + ". Possibly caused by misconfigured project.");
            } else {
                for (ToolchainModel model : models) {
                    try {
                        ToolchainPrivate toolchain = fact.createToolchain(model);

# Using an old Go version, fails during module loading, but we rewrite the error to the
# same one a switching version would use, without the auto-switch.
# This is a misconfigured system that should not arise in practice.
env TESTGO_VERSION=go1.21.1
env TESTGO_VERSION_SWITCH=switch
cp go.work go.work.orig
! go list

    a detection timeout. However, we found this caused frequent telemetry and traffic failures during slow connections, while increasing latency
    for misconfigured server first protocols rather than failing fast.

    This timeout has been disabled by default. This has the following impacts:

known services.

If Istio is not configured to allow pods to contact external services, the pods will
see errors such as 404s, HTTPS connection problems, and TCP connection problems.  If
ServiceEntries are misconfigured pods may see problems with server names.

## Try it out

After an operator runs `kubectl create -f aptget.yaml` pods will be able to
succeed with `apt-get update` and `apt-get install`.

							requestType,
						},
					},
				)
				if err != nil {
					panic(fmt.Sprintf("environment misconfigured: %v", err))
				}
				if strictCost {
					extended, err = extended.Extend(environment.StrictCostOpt)
					if err != nil {
						panic(fmt.Sprintf("environment misconfigured: %v", err))
					}
				}