Similar issue with me after installing per guide at https://forum.faforever.com/topic/4817/can-t-create-join-any-game/6
OS: Fedora 33
java.lang.NullPointerException: Cannot invoke "java.lang.Process.onExit()" because "process" is null
at com.faforever.client.game.GameService.spawnTerminationListener(GameService.java:655)
at com.faforever.client.game.GameService.spawnTerminationListener(GameService.java:649)
at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150)
at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)
at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2147)
at reactor.core.publisher.MonoToCompletableFuture.onNext(MonoToCompletableFuture.java:64)
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816)
at reactor.core.publisher.MonoCollectList$MonoCollectListSubscriber.onComplete(MonoCollectList.java:129)
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85)
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85)
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onComplete(FluxPeekFuseable.java:277)
at reactor.core.publisher.FluxReplay$UnboundedReplayBuffer.replayNormal(FluxReplay.java:602)
at reactor.core.publisher.FluxReplay$UnboundedReplayBuffer.replay(FluxReplay.java:709)
at reactor.core.publisher.FluxReplay$ReplayInner.request(FluxReplay.java:1711)
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144)
at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2194)
at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2068)
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178)
at reactor.core.publisher.FluxReplay.subscribeOrReturn(FluxReplay.java:1181)
at reactor.core.publisher.FluxReplay.subscribe(FluxReplay.java:1153)
at reactor.core.publisher.FluxAutoConnectFuseable.subscribe(FluxAutoConnectFuseable.java:61)
at reactor.core.publisher.Flux.subscribe(Flux.java:8466)
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onComplete(FluxFilterFuseable.java:171)
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.onComplete(FluxPeekFuseable.java:595)
at reactor.core.publisher.FluxReplay$UnboundedReplayBuffer.replayNormal(FluxReplay.java:602)
at reactor.core.publisher.FluxReplay$UnboundedReplayBuffer.replay(FluxReplay.java:709)
at reactor.core.publisher.FluxReplay$ReplaySubscriber.onComplete(FluxReplay.java:1372)
at reactor.core.publisher.SerializedSubscriber.onComplete(SerializedSubscriber.java:146)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onComplete(FluxRetryWhen.java:200)
at reactor.core.publisher.MonoFlatMapMany$FlatMapManyInner.onComplete(MonoFlatMapMany.java:260)
at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onComplete(Operators.java:2058)
at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onComplete(FluxOnAssembly.java:549)
at reactor.core.publisher.MonoFlatMapMany$FlatMapManyInner.onComplete(MonoFlatMapMany.java:260)
at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:294)
at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:230)
at reactor.core.publisher.MonoFlatMapMany$FlatMapManyMain.onSubscribeInner(MonoFlatMapMany.java:150)
at reactor.core.publisher.MonoFlatMapMany$FlatMapManyInner.onSubscribe(MonoFlatMapMany.java:245)
at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:165)
at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:87)
at reactor.core.publisher.Flux.subscribe(Flux.java:8466)
at reactor.core.publisher.MonoFlatMapMany$FlatMapManyMain.onNext(MonoFlatMapMany.java:195)
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816)
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:151)
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816)
at reactor.core.publisher.MonoReduce$ReduceSubscriber.onComplete(MonoReduce.java:139)
at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
at reactor.core.publisher.FluxPeek$PeekSubscriber.onComplete(FluxPeek.java:260)
at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
at reactor.netty.channel.FluxReceive.onInboundComplete(FluxReceive.java:400)
at reactor.netty.channel.ChannelOperations.onInboundComplete(ChannelOperations.java:419)
at reactor.netty.channel.ChannelOperations.terminate(ChannelOperations.java:473)
at reactor.netty.http.client.HttpClientOperations.onInboundNext(HttpClientOperations.java:703)
at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:93)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:327)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:299)
at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1373)
at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1236)
at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1285)
at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:510)
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:449)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:279)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:800)
at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:487)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:385)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:833)