gistfile1.txt

% ~minecraft/Distributions/serverinstall_1_42
                      _                  _              _
                     | |                | |            | |
  _ __ ___   ___   __| |_ __   __ _  ___| | _____   ___| |__
 | '_ ` _ \ / _ \ / _` | '_ \ / _` |/ __| |/ / __| / __| '_ \
 | | | | | | (_) | (_| | |_) | (_| | (__|   <\__ \| (__| | | |
 |_| |_| |_|\___/ \__,_| .__/ \__,_|\___|_|\_\___(_)___|_| |_|
                       | |
                       |_|
              modpacks.ch server downloader - build 619cf6f

Exception in thread "main" java.util.concurrent.CompletionException: java.lang.NullPointerException
        at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314)
        at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:319)
        at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:718)
        at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506)
        at java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:610)
        at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:840)
        at java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:479)
        at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
        at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
        at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
        at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
        at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177)
        at com.oracle.svm.core.thread.JavaThreads.threadStartRoutine(JavaThreads.java:527)
        at com.oracle.svm.core.posix.thread.PosixJavaThreads.pthreadStartRoutine(PosixJavaThreads.java:193)
Caused by: java.lang.NullPointerException
        at net.creeperhost.ftbserverdownloader.ServerPack.lambda$downloadManifest$1(ServerPack.java:39)
        at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:714)
        ... 11 more
% java -version
openjdk version "1.8.0_232"
OpenJDK Runtime Environment (build 1.8.0_232-8u232-b09-1~deb9u1-b09)
OpenJDK 64-Bit Server VM (build 25.232-b09, mixed mode)
% cat /etc/debian_version
10.3