@Nonnull
	public JavacArgumentsBuilder withDownsampleTarget(int downsampleTarget) {
		this.downsampleTarget = downsampleTarget;
		return this;
	}
@param downsampleTarget
		Java version to target via down sampling. Negative to disable downs sampling.
		See: {@link JavacCompiler#MIN_DOWNSAMPLE_VER} for lowest supported target.

@return Builder.
recaf-core/src/main/java/software/coley/recaf/services/compile/JavacArgumentsBuilder.java