Add bundled Java runtime

[tresf]

Closes #468

Bundles the Java Runtime into a the QZ Tray installer.

• To skip bundling, use new parameter${jre.skip}

  ant pkgbuild -Djre.skip=true # skip bundling of Java Runtime

• Since Initial support for M1 CPU #783 allows JavaFX to be fetched for non-x86_64 architecture by providing new jre.arch parameter. e.g:

  ant pkgbuild -Dtarget.arch=aarch64 # Grab and bundle ARM64 Java Runtime + JavaFX

  See also b40dd01.
• Downloads Java for the architecture requested (or detected) matching the vendor hard-coded into JLink.
• Java will now live in a nested folder:

  OS	Path
  🪟 Windows	C:\Program Files\QZ Tray\runtime\bin\java.exe
  🐧 Linux	/opt/qz-tray/jre/runtime/java
  🍏 MacOS	/Applications/QZ Tray.app/Contents/PlugIns/Java.runtime/Contents/Home/bin/java

TODO:

• Update tutorials, don't assume java -jar is a valid command.

[klabarge]

I get the below error during installation on Ubuntu 16.0.4

QZ Tray is starting...
[INFO] 2021-08-31 19:10:23,401 @ qz.installer.Installer:?
	Fixing runtime permissions...
[INFO] 2021-08-31 19:10:23,407 @ qz.installer.Installer:?
	Stopping running instances...
[DEBUG] 2021-08-31 19:10:23,434 @ qz.utils.ShellUtilities:?
	Executing: [pgrep, -x, java]
[DEBUG] 2021-08-31 19:10:23,461 @ qz.utils.ShellUtilities:?
	Executing: [pgrep, -f, qz-tray.jar]
      [success] Task preinstall was successful
Running install task...
Looking for Java...
   [success] Java was found: /tmp/selfgz7723/runtime/bin/java
Verifying the Java version is 1.8+...
   [success] Java 11.0 was detected
   [success] Java >= 9.0, adding jigsaw options
QZ Tray is starting...
[INFO] 2021-08-31 19:10:24,080 @ qz.installer.Installer:?
	Installing to /opt/qz-tray
[ERROR] 2021-08-31 19:10:24,126 @ qz.utils.ArgParser:?
	Installation step INSTALL failed
java.io.FileNotFoundException: /tmp/selfgz7723/Java.runtime/Contents/Home/legal/java.desktop/ADDITIONAL_LICENSE_INFO (No such file or directory)
	at java.base/java.io.FileInputStream.open0(Native Method)
	at java.base/java.io.FileInputStream.open(Unknown Source)
	at java.base/java.io.FileInputStream.<init>(Unknown Source)
	at org.apache.commons.io.FileUtils.doCopyFile(FileUtils.java:1138)
	at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1428)
	at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1426)
	at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1426)
	at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1426)
	at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1426)
	at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1426)
	at org.apache.commons.io.FileUtils.copyDirectory(FileUtils.java:1389)
	at org.apache.commons.io.FileUtils.copyDirectory(FileUtils.java:1261)
	at org.apache.commons.io.FileUtils.copyDirectory(FileUtils.java:1230)
	at qz.installer.Installer.deployApp(Unknown Source)
	at qz.installer.Installer.install(Unknown Source)
	at qz.installer.Installer.install(Unknown Source)
	at qz.utils.ArgParser.processInstallerArgs(Unknown Source)
	at qz.utils.ArgParser.intercept(Unknown Source)
	at qz.App.main(Unknown Source)
      [failure] Task install failed.

[tresf]

@klabarge the error you've linked seems to be a very odd issue with ant's inability to remove two types of files:

• Symbolic links
• .DS_Store files

This isn't documented very well in ant's documentation so it took a while to find, but for now, I've written a workaround to just get rid of these symlinks from the source as well as to always delete .DS_Store files: f40bb1e.

This means you'll need to run ant clean once, and then the Java.runtime folder pollution should stop. 😅 I found a few other edge-case issues with the build system and they've been patched as well.