Using a fresh build of the development spigot 1.14 on ubuntu 18.04 lts, when I use the stop command in console, the server hangs and requires me to fully restart my linux server to kill the process. I tired to see if it was just a long shutdown, but it was stuck for 10 hours.
I don't know if its relevant but when starting the server I also get a error
[Server console handler/ERROR]: Exception handling console input: Exception handling console inputjava.io.IOException: Resource temporarily unavailable at java.io.FileInputStream.readBytes(Native Method) ~[?:?] at java.io.FileInputStream.read(FileInputStream.java:279) ~[?:?] at java.io.BufferedInputStream.fill(BufferedInputStream.java:252) ~[?:?] at java.io.BufferedInputStream.read(BufferedInputStream.java:271) ~[?:?] at org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:169) ~[spigot.jar:git-Spigot-baafee9-043d31d] at org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:137) ~[spigot.jar:git-Spigot-baafee9-043d31d] at org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:246) ~[spigot.jar:git-Spigot-baafee9-043d31d] at org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:261) ~[spigot.jar:git-Spigot-baafee9-043d31d] at org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:198) ~[spigot.jar:git-Spigot-baafee9-043d31d] at org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readCharacter(ConsoleReader.java:2145) ~[spigot.jar:git-Spigot-baafee9-043d31d] at org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:2349) ~[spigot.jar:git-Spigot-baafee9-043d31d] at net.minecraft.server.v1_14_R1.DedicatedServer$2.run(DedicatedServer.java:95) [spigot.jar:git-Spigot-baafee9-043d31d]