Program: 102181
Project: 102181
Buggy source:
/** 
 * @param theVdb the VDB
 * @param extractMissingModels
 * @param updateValidationVersion
 */
public static void synchronizeVdb(final IFile theVdb,boolean extractMissingModels,boolean updateValidationVersion){
  if (!theVdb.exists())   return;
  IProject theProject=theVdb.getProject();
  VdbElement manifest=VdbUtil.getVdbManifest(theVdb);
  if (manifest == null)   return;
  if (extractMissingModels) {
    synchronizeWorkspace(theVdb);
  }
  Vdb actualVDB=new Vdb(theVdb,true,new NullProgressMonitor());
  Set<ModelElement> modelsToReplace=new HashSet<ModelElement>();
  Collection<IResource> matchingResources=new ArrayList<IResource>();
  Set<ModelElement> modelsNotInWorkspace=new HashSet<ModelElement>();
  Map<String,IResource> oldModelPathToResourceMap=new HashMap<String,IResource>();
  Set<String> dependentViewModelPaths=new HashSet<String>();
  for (  ModelElement model : manifest.getModels()) {
    Collection<String> modelImports=VdbUtil.getModelImports(model);
    for (    String importedModelPath : modelImports) {
      for (      ModelElement model_2 : manifest.getModels()) {
        if (model_2.getPath().equals(importedModelPath)) {
          dependentViewModelPaths.add(model.getPath());
          break;
        }
      }
    }
  }
  for (  ModelElement model : manifest.getModels()) {
    String modelName=model.getName();
    String modelUuid=VdbUtil.getUuid(model);
    IResource resource=null;
    boolean addTheUuid=(modelUuid == null);
    boolean nameWasChanged=false;
    if (!addTheUuid) {
      resource=WorkspaceResourceFinderUtil.findIResourceByUUID(modelUuid);
      if (resource != null) {
        nameWasChanged=!resource.getFullPath().removeFileExtension().lastSegment().equalsIgnoreCase(modelName);
      }
    }
 else {
      Collection<IFile> resources=WorkspaceResourceFinderUtil.findIResourceInProjectByName(model.getName() + ModelUtil.DOT_EXTENSION_XMI,theProject);
      if (resources.size() == 1) {
        resource=resources.iterator().next();
      }
    }
    if (resource != null) {
      String path=model.getPath();
      IPath iPath=new Path(path);
      IResource expectedResourceAtPath=ModelerCore.getWorkspace().getRoot().findMember(iPath);
      boolean fixThePath=(expectedResourceAtPath == null);
      oldModelPathToResourceMap.put(model.getPath(),resource);
      if (fixThePath || nameWasChanged || addTheUuid) {
        for (        VdbModelEntry modelEntry : actualVDB.getModelEntries()) {
          if (modelEntry.getName().removeFileExtension().lastSegment().equalsIgnoreCase(modelName)) {
            modelsToReplace.add(model);
            matchingResources.add(resource);
            break;
          }
        }
      }
    }
 else {
      modelsNotInWorkspace.add(model);
    }
  }
  if (!modelsNotInWorkspace.isEmpty()) {
    for (    ModelElement missingModel : modelsNotInWorkspace) {
      if (dependentViewModelPaths.contains(missingModel.getPath())) {
        return;
      }
    }
  }
  Collection<String> modelPathsToReplace=new ArrayList<String>();
  for (  ModelElement element : modelsToReplace) {
    VdbModelEntry modelEntry=getVdbModelEntry(element,actualVDB);
    if (modelEntry != null) {
      modelPathsToReplace.add(element.getPath());
      actualVDB.removeEntry(modelEntry);
    }
  }
  for (  String thePath : modelPathsToReplace) {
    IResource matchingResource=oldModelPathToResourceMap.get(thePath);
    if (matchingResource != null) {
      actualVDB.addModelEntry(matchingResource.getFullPath(),new NullProgressMonitor());
    }
  }
  for (  String thePath : dependentViewModelPaths) {
    IResource matchingResource=oldModelPathToResourceMap.get(thePath);
    if (matchingResource != null) {
      actualVDB.addModelEntry(matchingResource.getFullPath(),new NullProgressMonitor());
    }
  }
  actualVDB.synchronize(new NullProgressMonitor());
  if (updateValidationVersion) {
    actualVDB.setValidationDateTime(new Date());
    actualVDB.setValidationVersion(ModelerCore.getTeiidServerVersion().toString());
  }
  actualVDB.save(new NullProgressMonitor());
  try {
    theVdb.refreshLocal(IResource.DEPTH_ONE,new NullProgressMonitor());
  }
 catch (  CoreException ex) {
    VdbPlugin.UTIL.log(IStatus.ERROR,ex,ex.getMessage());
  }
}

Fixed version (ground truth):
/** 
 * @param theVdb the VDB
 * @param extractMissingModels
 * @param updateValidationVersion
 */
public static void synchronizeVdb(final IFile theVdb,boolean extractMissingModels,boolean updateValidationVersion){
  if (!theVdb.exists())   return;
  IProject theProject=theVdb.getProject();
  VdbElement manifest=VdbUtil.getVdbManifest(theVdb);
  if (manifest == null)   return;
  if (extractMissingModels) {
    synchronizeWorkspace(theVdb);
  }
  Vdb actualVDB=new Vdb(theVdb,true,new NullProgressMonitor());
  Set<ModelElement> modelsToReplace=new HashSet<ModelElement>();
  Collection<IResource> matchingResources=new ArrayList<IResource>();
  Set<ModelElement> modelsNotInWorkspace=new HashSet<ModelElement>();
  Map<String,IResource> oldModelPathToResourceMap=new HashMap<String,IResource>();
  Set<String> dependentViewModelPaths=new HashSet<String>();
  for (  ModelElement model : manifest.getModels()) {
    Collection<String> modelImports=VdbUtil.getModelImports(model);
    for (    String importedModelPath : modelImports) {
      for (      ModelElement model_2 : manifest.getModels()) {
        if (model_2.getPath().equals(importedModelPath)) {
          dependentViewModelPaths.add(model.getPath());
          break;
        }
      }
    }
  }
  for (  ModelElement model : manifest.getModels()) {
    String modelName=model.getName();
    String modelUuid=VdbUtil.getUuid(model);
    IResource resource=null;
    boolean addTheUuid=(modelUuid == null);
    boolean nameWasChanged=false;
    if (!addTheUuid) {
      resource=WorkspaceResourceFinderUtil.findIResourceByUUID(modelUuid);
      if (resource != null) {
        nameWasChanged=!resource.getFullPath().removeFileExtension().lastSegment().equalsIgnoreCase(modelName);
      }
    }
 else {
      IPath modelPath=new Path(model.getPath());
      Collection<IFile> resources=WorkspaceResourceFinderUtil.findIResourceInProjectByName(model.getName() + CoreStringUtil.Constants.DOT + modelPath.getFileExtension(),theProject);
      if (resources.size() == 1) {
        resource=resources.iterator().next();
      }
    }
    if (resource != null) {
      String path=model.getPath();
      IPath iPath=new Path(path);
      IResource expectedResourceAtPath=ModelerCore.getWorkspace().getRoot().findMember(iPath);
      boolean fixThePath=(expectedResourceAtPath == null);
      oldModelPathToResourceMap.put(model.getPath(),resource);
      if (fixThePath || nameWasChanged || addTheUuid) {
        for (        VdbModelEntry modelEntry : actualVDB.getModelEntries()) {
          if (modelEntry.getName().removeFileExtension().lastSegment().equalsIgnoreCase(modelName)) {
            modelsToReplace.add(model);
            matchingResources.add(resource);
            break;
          }
        }
      }
    }
 else {
      modelsNotInWorkspace.add(model);
    }
  }
  if (!modelsNotInWorkspace.isEmpty()) {
    for (    ModelElement missingModel : modelsNotInWorkspace) {
      if (dependentViewModelPaths.contains(missingModel.getPath())) {
        return;
      }
    }
  }
  Collection<String> modelPathsToReplace=new ArrayList<String>();
  for (  ModelElement element : modelsToReplace) {
    VdbModelEntry modelEntry=getVdbModelEntry(element,actualVDB);
    if (modelEntry != null) {
      modelPathsToReplace.add(element.getPath());
      actualVDB.removeEntry(modelEntry);
    }
  }
  for (  String thePath : modelPathsToReplace) {
    IResource matchingResource=oldModelPathToResourceMap.get(thePath);
    if (matchingResource != null) {
      actualVDB.addModelEntry(matchingResource.getFullPath(),new NullProgressMonitor());
    }
  }
  for (  String thePath : dependentViewModelPaths) {
    IResource matchingResource=oldModelPathToResourceMap.get(thePath);
    if (matchingResource != null) {
      actualVDB.addModelEntry(matchingResource.getFullPath(),new NullProgressMonitor());
    }
  }
  actualVDB.synchronize(new NullProgressMonitor());
  if (updateValidationVersion) {
    actualVDB.setValidationDateTime(new Date());
    actualVDB.setValidationVersion(ModelerCore.getTeiidServerVersion().toString());
  }
  actualVDB.save(new NullProgressMonitor());
  try {
    theVdb.refreshLocal(IResource.DEPTH_ONE,new NullProgressMonitor());
  }
 catch (  CoreException ex) {
    VdbPlugin.UTIL.log(IStatus.ERROR,ex,ex.getMessage());
  }
}