Program: 94507
Project: 94507
Buggy source:
protected static void initialize(final Configuration conf,final Properties p){
  if (adHocProviderFactories == null) {
    adHocProviderFactories=new HashMap<String,AdHocDataProviderFactory>();
    final ServiceLoader<AdHocDataProviderFactory> dataProviderLoader=ServiceLoader.load(AdHocDataProviderFactory.class);
    for (    final AdHocDataProviderFactory dp : dataProviderLoader) {
      if (dp.isValid()) {
        adHocProviderFactories.put(dp.getPrefix(),dp);
      }
 else {
        log.info("String_Node_Str" + dp.getClass().getName() + "String_Node_Str");
      }
    }
  }
  if (imageIngestProviderFactories == null) {
    imageIngestProviderFactories=new HashMap<String,ImageIngestDataProviderFactory>();
    final ServiceLoader<ImageIngestDataProviderFactory> dataProviderLoader=ServiceLoader.load(ImageIngestDataProviderFactory.class);
    for (    final ImageIngestDataProviderFactory dp : dataProviderLoader) {
      try {
        if (dp.isValid()) {
          imageIngestProviderFactories.put(dp.getPrefix(),dp);
        }
 else {
          log.info("String_Node_Str" + dp.getClass().getName() + "String_Node_Str");
        }
      }
 catch (      Exception e) {
      }
    }
  }
  if (mrsImageProviderFactories == null) {
    mrsImageProviderFactories=new HashMap<String,MrsImageDataProviderFactory>();
    final ServiceLoader<MrsImageDataProviderFactory> dataProviderLoader=ServiceLoader.load(MrsImageDataProviderFactory.class);
    for (    final MrsImageDataProviderFactory dp : dataProviderLoader) {
      try {
        if (dp.isValid()) {
          mrsImageProviderFactories.put(dp.getPrefix(),dp);
        }
 else {
          log.info("String_Node_Str" + dp.getClass().getName() + "String_Node_Str");
        }
      }
 catch (      Exception e) {
      }
    }
  }
  if (vectorProviderFactories == null) {
    boolean debugEnabled=log.isDebugEnabled();
    vectorProviderFactories=new HashMap<String,VectorDataProviderFactory>();
    if (debugEnabled) {
      log.debug("String_Node_Str");
    }
    final ServiceLoader<VectorDataProviderFactory> dataProviderLoader=ServiceLoader.load(VectorDataProviderFactory.class);
    int count=0;
    for (    final VectorDataProviderFactory dp : dataProviderLoader) {
      try {
        if (debugEnabled) {
          log.debug("String_Node_Str" + dp.getClass().getName());
        }
        boolean valid=false;
        if (conf != null) {
          valid=dp.isValid(conf);
        }
 else {
          valid=dp.isValid();
        }
        if (valid) {
          if (debugEnabled) {
            log.debug("String_Node_Str" + dp.getClass().getName() + "String_Node_Str"+ dp.getPrefix());
          }
          vectorProviderFactories.put(dp.getPrefix(),dp);
          count++;
        }
 else {
          if (debugEnabled) {
            log.debug("String_Node_Str" + dp.getClass().getName() + "String_Node_Str"+ dp.getPrefix());
          }
          log.info("String_Node_Str" + dp.getClass().getName() + "String_Node_Str");
        }
      }
 catch (      Exception e) {
        log.warn("String_Node_Str" + dp.getClass().getName() + "String_Node_Str",e);
      }
    }
    if (count == 0) {
      log.warn("String_Node_Str");
    }
  }
  findPreferredProvider(conf,p);
}

Fixed version (ground truth):
protected static void initialize(final Configuration conf,final Properties p){
  if (adHocProviderFactories == null) {
    adHocProviderFactories=new HashMap<String,AdHocDataProviderFactory>();
    final ServiceLoader<AdHocDataProviderFactory> dataProviderLoader=ServiceLoader.load(AdHocDataProviderFactory.class);
    for (    final AdHocDataProviderFactory dp : dataProviderLoader) {
      if (dp.isValid()) {
        adHocProviderFactories.put(dp.getPrefix(),dp);
      }
 else {
        log.info("String_Node_Str" + dp.getClass().getName() + "String_Node_Str");
      }
    }
  }
  if (imageIngestProviderFactories == null) {
    imageIngestProviderFactories=new HashMap<String,ImageIngestDataProviderFactory>();
    final ServiceLoader<ImageIngestDataProviderFactory> dataProviderLoader=ServiceLoader.load(ImageIngestDataProviderFactory.class);
    for (    final ImageIngestDataProviderFactory dp : dataProviderLoader) {
      try {
        if (dp.isValid()) {
          imageIngestProviderFactories.put(dp.getPrefix(),dp);
        }
 else {
          log.info("String_Node_Str" + dp.getClass().getName() + "String_Node_Str");
        }
      }
 catch (      Exception e) {
      }
    }
  }
  if (mrsImageProviderFactories == null) {
    mrsImageProviderFactories=new HashMap<String,MrsImageDataProviderFactory>();
    final ServiceLoader<MrsImageDataProviderFactory> dataProviderLoader=ServiceLoader.load(MrsImageDataProviderFactory.class);
    for (    final MrsImageDataProviderFactory dp : dataProviderLoader) {
      try {
        if (dp.isValid()) {
          mrsImageProviderFactories.put(dp.getPrefix(),dp);
        }
 else {
          log.info("String_Node_Str" + dp.getClass().getName() + "String_Node_Str");
        }
      }
 catch (      Exception e) {
      }
    }
  }
  if (vectorProviderFactories == null) {
    boolean debugEnabled=log.isDebugEnabled();
    vectorProviderFactories=new HashMap<String,VectorDataProviderFactory>();
    if (debugEnabled) {
      log.debug("String_Node_Str");
    }
    final ServiceLoader<VectorDataProviderFactory> dataProviderLoader=ServiceLoader.load(VectorDataProviderFactory.class);
    int count=0;
    for (    final VectorDataProviderFactory dp : dataProviderLoader) {
      try {
        if (debugEnabled) {
          log.debug("String_Node_Str" + dp.getClass().getName() + "String_Node_Str"+ ((conf == null) ? "String_Node_Str" : "String_Node_Str"));
        }
        boolean valid=false;
        if (conf != null) {
          valid=dp.isValid(conf);
        }
 else {
          valid=dp.isValid();
        }
        if (valid) {
          if (debugEnabled) {
            log.debug("String_Node_Str" + dp.getClass().getName() + "String_Node_Str"+ dp.getPrefix());
          }
          vectorProviderFactories.put(dp.getPrefix(),dp);
          count++;
        }
 else {
          if (debugEnabled) {
            log.debug("String_Node_Str" + dp.getClass().getName() + "String_Node_Str"+ dp.getPrefix());
          }
          log.info("String_Node_Str" + dp.getClass().getName() + "String_Node_Str");
        }
      }
 catch (      Exception e) {
        log.warn("String_Node_Str" + dp.getClass().getName() + "String_Node_Str",e);
      }
    }
    if (count == 0) {
      log.warn("String_Node_Str");
    }
  }
  findPreferredProvider(conf,p);
}