[#11048] Fix race condition in MessageUtils

Wait for the AnsiConsole#systemInstall call in the FastTerminal background thread before
uninstalling. Otherwise a quickly finishing build might leave the terminal and system streams
in a broken state.

Author: oehme

impl/maven-jline/src/main/java/org/apache/maven/jline/MessageUtils.java

@@ -94,6 +94,10 @@ public static void systemUninstall() {
 
     private static void doSystemUninstall() {
         try {
+            if (terminal instanceof FastTerminal) {
+                //wait for the asynchronous systemInstall call before we uninstall to ensure a consistent state
+                ((FastTerminal) terminal).getTerminal();
+            }
             AnsiConsole.systemUninstall();
         } finally {
             terminal = null;