Program: 18921
Project: 18921
Buggy source:
@Override protected Object doExecute() throws Exception {
  ComputeService service=getComputeService();
  TemplateBuilder builder=service.templateBuilder();
  builder.any();
  if (smallest) {
    builder.smallest();
  }
  if (fastest) {
    builder.fastest();
  }
  if (biggest) {
    builder.biggest();
  }
  if (locationId != null) {
    builder.locationId(locationId);
  }
  if (imageId != null) {
    builder.imageId(imageId);
  }
  if (hardwareId != null) {
    builder.hardwareId(hardwareId);
  }
  if (osFamily != null) {
    builder.osFamily(OsFamily.fromValue(osFamily));
  }
  if (osVersion != null) {
    builder.osVersionMatches(osVersion);
  }
  TemplateOptions options=service.templateOptions();
  if (adminAccess) {
    options.runScript(AdminAccess.standard());
  }
  if (ec2SecurityGroups != null) {
    options.as(EC2TemplateOptions.class).securityGroups(ec2SecurityGroups);
  }
  if (ec2KeyPair != null) {
    options.as(EC2TemplateOptions.class).keyPair(ec2KeyPair);
  }
  if (ec2NoKeyPair != null) {
    options.as(EC2TemplateOptions.class).noKeyPair();
  }
  Set<? extends NodeMetadata> metadatas=null;
  try {
    metadatas=service.createNodesInGroup(group,number,builder.options(options).build());
  }
 catch (  RunNodesException ex) {
    System.out.println("String_Node_Str" + ex.getMessage());
  }
  if (metadatas != null && !metadatas.isEmpty()) {
    System.out.println("String_Node_Str");
    printNodes(metadatas,"String_Node_Str",System.out);
  }
  return null;
}

Fixed version (ground truth):
@Override protected Object doExecute() throws Exception {
  ComputeService service=getComputeService();
  TemplateBuilder builder=service.templateBuilder();
  builder.any();
  if (smallest) {
    builder.smallest();
  }
  if (fastest) {
    builder.fastest();
  }
  if (biggest) {
    builder.biggest();
  }
  if (locationId != null) {
    builder.locationId(locationId);
  }
  if (imageId != null) {
    builder.imageId(imageId);
  }
  if (hardwareId != null) {
    builder.hardwareId(hardwareId);
  }
  if (osFamily != null) {
    builder.osFamily(OsFamily.fromValue(osFamily));
  }
  if (osVersion != null) {
    builder.osVersionMatches(osVersion);
  }
  TemplateOptions options=service.templateOptions();
  if (adminAccess) {
    options.runScript(AdminAccess.standard());
  }
  if (ec2SecurityGroups != null) {
    options.as(EC2TemplateOptions.class).securityGroups(ec2SecurityGroups);
  }
  if (ec2KeyPair != null) {
    options.as(EC2TemplateOptions.class).keyPair(ec2KeyPair);
  }
  if (ec2NoKeyPair != null) {
    options.as(EC2TemplateOptions.class).noKeyPair();
  }
  Set<? extends NodeMetadata> metadatas=null;
  try {
    metadatas=service.createNodesInGroup(group,number,builder.options(options).build());
  }
 catch (  RunNodesException ex) {
    System.out.println("String_Node_Str" + ex.getMessage());
  }
  if (metadatas != null && !metadatas.isEmpty()) {
    System.out.println("String_Node_Str");
    printNodes(metadatas,"String_Node_Str",System.out);
  }
  for (  NodeMetadata node : metadatas) {
    cacheProvider.getProviderCacheForType(Constants.ACTIVE_NODE_CACHE).put(getComputeService().getContext().getProviderSpecificContext().getId(),node.getId());
    cacheProvider.getProviderCacheForType(Constants.INACTIVE_NODE_CACHE).put(getComputeService().getContext().getProviderSpecificContext().getId(),node.getId());
    cacheProvider.getProviderCacheForType(Constants.SUSPENDED_NODE_CACHE).put(getComputeService().getContext().getProviderSpecificContext().getId(),node.getId());
  }
  return null;
}