Breaking change in patch 1.16.2: ThreadLocal#withInitial not in android API < 26.

[sixcolors]

v1.16.2 introduces a breaking change for older android clients: https://developer.android.com/reference/java/lang/ThreadLocal#withInitial(java.util.function.Supplier%3C?%20extends%20S%3E)

Exception java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done (AsyncTask.java:325)
at java.util.concurrent.FutureTask.finishCompletion (FutureTask.java:354)
at java.util.concurrent.FutureTask.setException (FutureTask.java:223)
at java.util.concurrent.FutureTask.run (FutureTask.java:242)
at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:607)
at java.lang.Thread.run (Thread.java:762)
Caused by java.lang.NoSuchMethodError: No static method withInitial(Ljava/util/function/Supplier;)Ljava/lang/ThreadLocal; in class Ljava/lang/ThreadLocal; or its super classes (declaration of 'java.lang.ThreadLocal' appears in /system/framework/core-oj.jar)
at org.jsoup.internal.StringUtil. (StringUtil.java:338)
at org.jsoup.internal.StringUtil.borrowBuilder (StringUtil.java:348)
at org.jsoup.helper.UrlBuilder. (UrlBuilder.java:30)
at org.jsoup.helper.HttpConnection$Base.url (HttpConnection.java:422)
at org.jsoup.helper.HttpConnection$Request.url (HttpConnection.java:580)
at org.jsoup.helper.HttpConnection.url (HttpConnection.java:138)
at org.jsoup.helper.HttpConnection.connect (HttpConnection.java:78)
at org.jsoup.Jsoup.connect (Jsoup.java:94)

[jhy]

Hi there -- you will need to enable desugaring in your build to bring the Java compatibility up to 1.8. Please see this note from the readme:

Android support
When used in Android projects, core library desugaring with the NIO specification should be enabled to support Java 8+ features.

Happy for feedback on how to make this required setting more obvious!

(Dupes #2000)