public BuildParameterBuilder tagMatcher(ClassPathTagMatcher tagMatcher) {
        this.tagMatcher = Objects.requireNonNull(tagMatcher);
        return this;
    }
Sets the implementation used to find JARs with the given tags.

<p>A default implementation that loads JARs is automatically used if
an explicit implementation is not specified. You probably only need
to provide a custom implementation for testing.

@param tagMatcher Tag matching implementation.
@return Returns the builder.
smithy-cli/src/main/java/software/amazon/smithy/cli/BuildParameterBuilder.java