java: start a complaint section

README.adoc

@@ -13246,7 +13246,7 @@ This repo basically wraps around that, and tries to make everything even more aw
 The downsides of Buildroot are:
 
 * the first build takes a while, but it is well worth it
-* the selection of software packages is relatively limited if compared to Debian, e.g. no Java or Python package in guest out of the box.
+* the selection of software packages is relatively limited if compared to Debian.
 +
 In theory, any software can be packaged, and the Buildroot side is easy.
 +
@@ -14340,6 +14340,16 @@ Examples:
 ** link:rootfs_overlay/lkmc/nodejs/file_write_read.js[]
 ** link:rootfs_overlay/lkmc/nodejs/read_stdin_to_string.js[] Question: https://stackoverflow.com/questions/30441025/read-all-text-from-stdin-to-a-string
 
+==== Java
+
+No OpenJDK package as of 2018.08: https://stackoverflow.com/questions/28874150/buildroot-with-jamvm-2-0-for-java-8/59290927#59290927 partly because their build system is shit like the rest of the project's setup.
+
+Unmerged patch at: http://lists.busybox.net/pipermail/buildroot/2018-February/213282.html
+
+There is a JamVM package though https://en.wikipedia.org/wiki/JamVM which is something Android started before moving to Dalvik,
+
+Maybe some day other <<android>> Java runtimes will also become compilable. Maybe, since Android is also shit.
+
 === Algorithms
 
 link:userland/algorithm[]
@@ -18758,7 +18768,7 @@ See: xref:test-this-repo[xrefstyle=full] for more useful testing tips.
 
 == Android
 
-Remember: Android AOSP is a huge undocumented piece of bloatware. It's integration into this repo will likely never be super good.
+Remember: Android AOSP is a huge undocumented piece of bloatware. It's integration into this repo will likely never be super good. See also: https://cirosantilli.com#android
 
 Verbose setup description: https://stackoverflow.com/questions/1809774/how-to-compile-the-android-aosp-kernel-and-test-it-with-the-android-emulator/48310014#48310014