Program: 69238
Project: 69238
Buggy source:
@Override public List<Instance> determineInstancesFromTargets(List<ResolvedTarget> targets,@Null Predicate<? super String> applicationIdFilter,@Null Predicate<? super Instance> instanceFilter){
  Flux<ResolvedTarget> targetsFlux=Flux.fromIterable(targets);
  Flux<OSAVector> initialOSAVectorFlux=targetsFlux.map(target -> {
    OSAVector v=new OSAVector();
    v.target=target;
    return v;
  }
);
  Flux<String> orgIdFlux=initialOSAVectorFlux.flatMap(v -> this.getOrgId(v.target.getOrgName()));
  Flux<OSAVector> OSAVectorOrgFlux=Flux.zip(initialOSAVectorFlux,orgIdFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.orgId=tuple.getT2();
    return v;
  }
);
  Flux<String> spaceIdFlux=OSAVectorOrgFlux.flatMap(v -> this.getSpaceId(v.orgId,v.target.getSpaceName()));
  Flux<OSAVector> OSAVectorSpaceFlux=Flux.zip(OSAVectorOrgFlux,spaceIdFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.spaceId=tuple.getT2();
    return v;
  }
);
  Flux<String> applicationIdFlux=OSAVectorSpaceFlux.flatMap(v -> this.getApplicationId(v.orgId,v.spaceId,v.target.getApplicationName()));
  Flux<OSAVector> OSAVectorApplicationFlux=Flux.zip(OSAVectorSpaceFlux,applicationIdFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.applicationId=tuple.getT2();
    return v;
  }
);
  if (applicationIdFilter != null) {
    OSAVectorApplicationFlux=OSAVectorApplicationFlux.filter(v -> applicationIdFilter.test(v.applicationId));
  }
  Flux<String> applicationURLFlux=OSAVectorApplicationFlux.flatMap(v -> this.getApplicationUrl(v.applicationId,v.target.getProtocol()));
  Flux<OSAVector> OSAVectorURLFlux=Flux.zip(OSAVectorApplicationFlux,applicationURLFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.accessURL=this.determineAccessURL(tuple.getT2(),v.target.getPath());
    return v;
  }
);
  Flux<Integer> numberOfInstancesFlux=OSAVectorApplicationFlux.flatMap(v -> this.getNumberOfProcesses(v));
  Flux<OSAVector> OSAVectorCompleteFlux=Flux.zip(OSAVectorURLFlux,numberOfInstancesFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.numberOfInstances=tuple.getT2();
    return v;
  }
);
  Flux<Instance> instancesFlux=OSAVectorCompleteFlux.flatMap(v -> {
    List<Instance> instances=new ArrayList<>(v.numberOfInstances);
    for (int i=0; i < v.numberOfInstances; i++) {
      Instance inst=new Instance(v.target,String.format("String_Node_Str",v.applicationId,i),v.accessURL);
      instances.add(inst);
    }
    return Flux.fromIterable(instances);
  }
);
  if (instanceFilter != null) {
    instancesFlux=instancesFlux.filter(instanceFilter);
  }
  Mono<List<Instance>> listInstancesMono=instancesFlux.collectList();
  List<Instance> result=null;
  try {
    result=listInstancesMono.block();
  }
 catch (  RuntimeException e) {
    log.error("String_Node_Str",e);
    result=null;
  }
  return result;
}

Fixed version (ground truth):
@Override public List<Instance> determineInstancesFromTargets(List<ResolvedTarget> targets,@Null Predicate<? super String> applicationIdFilter,@Null Predicate<? super Instance> instanceFilter){
  Flux<ResolvedTarget> targetsFlux=Flux.fromIterable(targets);
  Flux<OSAVector> initialOSAVectorFlux=targetsFlux.map(target -> {
    OSAVector v=new OSAVector();
    v.target=target;
    return v;
  }
);
  Flux<String> orgIdFlux=initialOSAVectorFlux.flatMapSequential(v -> this.getOrgId(v.target.getOrgName()));
  Flux<OSAVector> OSAVectorOrgFlux=Flux.zip(initialOSAVectorFlux,orgIdFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.orgId=tuple.getT2();
    return v;
  }
);
  Flux<String> spaceIdFlux=OSAVectorOrgFlux.flatMapSequential(v -> this.getSpaceId(v.orgId,v.target.getSpaceName()));
  Flux<OSAVector> OSAVectorSpaceFlux=Flux.zip(OSAVectorOrgFlux,spaceIdFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.spaceId=tuple.getT2();
    return v;
  }
);
  Flux<String> applicationIdFlux=OSAVectorSpaceFlux.flatMapSequential(v -> this.getApplicationId(v.orgId,v.spaceId,v.target.getApplicationName()));
  Flux<OSAVector> OSAVectorApplicationFlux=Flux.zip(OSAVectorSpaceFlux,applicationIdFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.applicationId=tuple.getT2();
    return v;
  }
);
  if (applicationIdFilter != null) {
    OSAVectorApplicationFlux=OSAVectorApplicationFlux.filter(v -> applicationIdFilter.test(v.applicationId));
  }
  Flux<String> applicationURLFlux=OSAVectorApplicationFlux.flatMapSequential(v -> this.getApplicationUrl(v.applicationId,v.target.getProtocol()));
  Flux<OSAVector> OSAVectorURLFlux=Flux.zip(OSAVectorApplicationFlux,applicationURLFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.accessURL=this.determineAccessURL(tuple.getT2(),v.target.getPath());
    return v;
  }
);
  Flux<Integer> numberOfInstancesFlux=OSAVectorApplicationFlux.flatMapSequential(v -> this.getNumberOfProcesses(v));
  Flux<OSAVector> OSAVectorCompleteFlux=Flux.zip(OSAVectorURLFlux,numberOfInstancesFlux).map(tuple -> {
    OSAVector v=tuple.getT1();
    v.numberOfInstances=tuple.getT2();
    return v;
  }
);
  Flux<Instance> instancesFlux=OSAVectorCompleteFlux.flatMapSequential(v -> {
    List<Instance> instances=new ArrayList<>(v.numberOfInstances);
    for (int i=0; i < v.numberOfInstances; i++) {
      Instance inst=new Instance(v.target,String.format("String_Node_Str",v.applicationId,i),v.accessURL);
      instances.add(inst);
    }
    return Flux.fromIterable(instances);
  }
);
  if (instanceFilter != null) {
    instancesFlux=instancesFlux.filter(instanceFilter);
  }
  Mono<List<Instance>> listInstancesMono=instancesFlux.collectList();
  List<Instance> result=null;
  try {
    result=listInstancesMono.block();
  }
 catch (  RuntimeException e) {
    log.error("String_Node_Str",e);
    result=null;
  }
  return result;
}