Program: 82335
Project: 82335
Buggy source:
public static Cache getCache(){
  EvictionListener<CacheKey,CacheValue> listener=new EvictionListener<CacheKey,CacheValue>(){
    @Override public void onEviction(    CacheKey key,    CacheValue value){
      value.release();
    }
  }
;
  Weigher<CacheValue> weigher=new Weigher<CacheValue>(){
    @Override public int weightOf(    CacheValue value){
      return value.length();
    }
  }
;
  long maximumWeightedCapacity=1 * 1024 * 1024;
  final ConcurrentLinkedHashMap<CacheKey,CacheValue> cache=new ConcurrentLinkedHashMap.Builder<CacheKey,CacheValue>().weigher(weigher).maximumWeightedCapacity(maximumWeightedCapacity).listener(listener).build();
  Cache cacheFactory=new Cache(){
    @Override public CacheValue newInstance(    CacheDirectory directory,    String fileName,    int cacheBlockSize){
      return new UnsafeCacheValue(cacheBlockSize);
    }
    @Override public long getFileId(    CacheDirectory directory,    String fileName){
      return fileName.hashCode();
    }
    @Override public int getFileBufferSize(    CacheDirectory directory,    String fileName){
      return 1024;
    }
    @Override public int getCacheBlockSize(    CacheDirectory directory,    String fileName){
      return 8192;
    }
    @Override public boolean cacheFileForReading(    CacheDirectory directory,    String name,    IOContext context){
      return true;
    }
    @Override public boolean cacheFileForWriting(    CacheDirectory directory,    String name,    IOContext context){
      return true;
    }
    @Override public CacheValue get(    CacheKey key){
      return cache.get(key);
    }
    @Override public void put(    CacheKey key,    CacheValue value){
      cache.put(key,value);
    }
    @Override public void removeFile(    CacheDirectory directory,    String fileName) throws IOException {
    }
    @Override public void releaseDirectory(    String directoryName){
    }
    @Override public CacheValue getQuietly(    CacheKey key){
      return cache.getQuietly(key);
    }
    @Override public boolean shouldBeQuiet(    CacheDirectory directory,    String fileName){
      return false;
    }
    @Override public void close() throws IOException {
    }
  }
;
  return cacheFactory;
}

Fixed version (ground truth):
public static Cache getCache(){
  EvictionListener<CacheKey,CacheValue> listener=new EvictionListener<CacheKey,CacheValue>(){
    @Override public void onEviction(    CacheKey key,    CacheValue value){
      value.release();
    }
  }
;
  Weigher<CacheValue> weigher=new Weigher<CacheValue>(){
    @Override public int weightOf(    CacheValue value){
      return value.length();
    }
  }
;
  long maximumWeightedCapacity=1 * 1024 * 1024;
  final ConcurrentLinkedHashMap<CacheKey,CacheValue> cache=new ConcurrentLinkedHashMap.Builder<CacheKey,CacheValue>().weigher(weigher).maximumWeightedCapacity(maximumWeightedCapacity).listener(listener).build();
  Cache cacheFactory=new Cache(){
    @Override public CacheValue newInstance(    CacheDirectory directory,    String fileName,    int cacheBlockSize){
      return new UnsafeCacheValue(cacheBlockSize);
    }
    @Override public long getFileId(    CacheDirectory directory,    String fileName){
      return fileName.hashCode();
    }
    @Override public int getFileBufferSize(    CacheDirectory directory,    String fileName){
      return 1024;
    }
    @Override public int getCacheBlockSize(    CacheDirectory directory,    String fileName){
      return 8192;
    }
    @Override public boolean cacheFileForReading(    CacheDirectory directory,    String name,    IOContext context){
      return true;
    }
    @Override public boolean cacheFileForWriting(    CacheDirectory directory,    String name,    IOContext context){
      return true;
    }
    @Override public CacheValue get(    CacheKey key){
      return cache.get(key);
    }
    @Override public void put(    CacheKey key,    CacheValue value){
      cache.put(key,value);
    }
    @Override public void removeFile(    CacheDirectory directory,    String fileName) throws IOException {
    }
    @Override public void releaseDirectory(    String directoryName){
    }
    @Override public CacheValue getQuietly(    CacheKey key){
      return cache.getQuietly(key);
    }
    @Override public boolean shouldBeQuiet(    CacheDirectory directory,    String fileName){
      return false;
    }
    @Override public void close() throws IOException {
    }
    @Override public void fileClosedForWriting(    CacheDirectory directory,    String fileName,    long fileId) throws IOException {
    }
  }
;
  return cacheFactory;
}