toolchain.setType("TYPE");
        toolchain.setProvides(props);
        PersistedToolchains userResult = new PersistedToolchains();
        userResult.setToolchains(Collections.singletonList(toolchain));

        props = new Properties();
        props.put("key", "global_value");
        toolchain = new ToolchainModel();
        toolchain.setType("TYPE");
        toolchain.setProvides(props);

            <![CDATA[
    /**
     * Computes a hash value based on {@link #getType()} and {@link #getProvides()} values.
     */
    public int hashCode() {
        return java.util.Objects.hash(getType(), getProvides());
    } //-- int hashCode()

    /**
     * Checks equality based on {@link #getType()} and {@link #getProvides()} values.
     */
    public boolean equals(Object other) {
        if (this == other) {

            if (!Objects.equals(type, other.type)) {
                return false;
            }

            Properties thisProvides = this.getModel().getProvides();
            Properties otherProvides = other.getModel().getProvides();

            return Objects.equals(thisProvides, otherProvides);
        } else {
            return false;
        }
    }

    @Override

        @SuppressWarnings("deprecation")
        JavaToolchainImpl jtc = new DefaultJavaToolChain(model, logger);

        // populate the provides section
        Properties provides = model.getProvides();
        for (Entry<Object, Object> provide : provides.entrySet()) {
            String key = (String) provide.getKey();
            String value = (String) provide.getValue();

            if (value == null) {