Error in fetching recent logs in PCF using DopplerClient

Hi,
I have been using the cf-java-client to fetch application logs from PCF. The code was running fine until now, I am not sure what has changed. Currently when I execute the same code, it gives an UnknownCloudFoundryException. Below is the code snippet I have been using to fetch the logs.

       Flux<String> logs = dopplerClientclient.recentLogs(RecentLogsRequest.builder().applicationId(appguid).build()).map(e -> e.getLogMessage()).map(m -> m.getMessage());

        Pattern pattern = Pattern.compile(request.getSearchValue());
        List<String> matchedLogs = logs.toStream().filter(logmessage->pattern.matcher(logmessage).find()).collect(Collectors.toList());

Below is the complete exception stack trace-

org.cloudfoundry.UnknownCloudFoundryException: Unknown Cloud Foundry Exception
at org.cloudfoundry.reactor.util.ErrorPayloadMappers.lambda$null$5(ErrorPayloadMappers.java:84)
Suppressed: The stacktrace has been enhanced by Reactor, refer to additional information below:
Assembly trace from producer [reactor.core.publisher.FluxMap] :
reactor.core.publisher.Flux.checkpoint(Flux.java:3559)
org.cloudfoundry.reactor.doppler.ReactorDopplerEndpoints.recentLogs(ReactorDopplerEndpoints.java:68)
Error has been observed at the following site(s):
*__checkpoint() ⇢ at org.cloudfoundry.reactor.doppler.ReactorDopplerEndpoints.recentLogs(ReactorDopplerEndpoints.java:68)
Original Stack Trace:
at org.cloudfoundry.reactor.util.ErrorPayloadMappers.lambda$null$5(ErrorPayloadMappers.java:84)
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:132)
at reactor.core.publisher.FluxDoFinally$DoFinallySubscriber.onNext(FluxDoFinally.java:113)
at reactor.core.publisher.FluxHandle$HandleSubscriber.onNext(FluxHandle.java:129)
at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onNext(FluxMap.java:224)
at reactor.core.publisher.FluxDoFinally$DoFinallySubscriber.onNext(FluxDoFinally.java:113)
at reactor.core.publisher.FluxHandleFuseable$HandleFuseableSubscriber.onNext(FluxHandleFuseable.java:194)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107)
at reactor.core.publisher.Operators$BaseFluxToMonoOperator.completePossiblyEmpty(Operators.java:2097)
at reactor.core.publisher.MonoCollectList$MonoCollectListSubscriber.onComplete(MonoCollectList.java:118)
at reactor.core.publisher.FluxPeek$PeekSubscriber.onComplete(FluxPeek.java:260)
at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
at reactor.netty.channel.FluxReceive.onInboundComplete(FluxReceive.java:415)
at reactor.netty.channel.ChannelOperations.onInboundComplete(ChannelOperations.java:446)
at reactor.netty.channel.ChannelOperations.terminate(ChannelOperations.java:500)
at reactor.netty.http.client.HttpClientOperations.onInboundNext(HttpClientOperations.java:782)
at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:114)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318)
at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at io.netty.handler.logging.LoggingHandler.channelRead(LoggingHandler.java:280)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1475)
at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1338)
at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1387)
at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:529)
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:468)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
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)

Bắt đầu bằng cách tái hiện lệnh gọi recentLogs bằng application context được cung cấp, sau đó kiểm tra ReactorDopplerEndpoints.java:68 và ErrorPayloadMappers.java:84 cùng với các chi tiết phản hồi hiện có. Issue không chỉ định hành vi mong đợi hoặc một test, vì vậy để hoàn thành cần xác định phản hồi bị lỗi và định nghĩa một kiểm tra hồi quy trước khi thực hiện bản sửa.