Read tar tar.gz in memory

ArchiveUtils.java

/**
 * Example of use
 */
public static void main(String[] args) throws IOException {
  byte[] tarByte = Files.readAllBytes(Paths.get("some.tar.gz"));
  String tar = Base64.getEncoder().encodeToString(tarByte);
}

build.gradle

// Compress
implementation 'org.apache.commons:commons-compress:1.21'

TarGzReadMemory.java

	public static void main(String[] args) throws IOException {
		String tar = "H4sIANES52EAA+3RTQrCMBBA4RwlJ9CZND/nEW2hUFBqBY9vgxXEhdpFSsX3bWaRgQy85tgd6n5rSpJRSiFPTUGe54NRr0mjauXUiEoKzthQ9KrJ5TzsemtNfWr37/Y+vf+o5t6/abvab4brUOKPHDhGP6O/C+KNlRLHvPr3/mN4LRV+Mr+/Ohfpv4Tcv1ph/0rov4Tc362wv0v0BwAAAAAAAAAAAADgWzfK+kupACgAAA==";
		byte[] content = tar.getBytes(StandardCharsets.UTF_8);
		TarArchiveInputStream tarIn = new TarArchiveInputStream(new GzipCompressorInputStream(new ByteArrayInputStream(Base64.getDecoder().decode(content))));
		try {
			TarArchiveEntry tarEntry = tarIn.getNextTarEntry();
			while (tarEntry != null) {
				byte[] btoRead = new byte[1024];
				ByteArrayOutputStream bout = new ByteArrayOutputStream();
				int len = 0;
				while ((len = tarIn.read(btoRead)) != -1) {
					bout.write(btoRead, 0, len);
				}
				bout.close();
				tarEntry = tarIn.getNextTarEntry();
			}
			tarIn.close();
		}
		catch (IOException e) {
			e.printStackTrace();
		}
	}