Program: 55303
Project: 55303
Buggy source:
/** 
 * Tries to locate a class with given name and to instantiate a   {@link AbstractScheduler} object from it.
 * @param schedulerClassName the name of the class to instantiate the scheduler object from
 * @param deploymentManager the deployment manager which shall be passed on to the scheduler
 * @param instanceManager the instance manager which shall be passed on to the scheduler
 * @return the {@link AbstractScheduler} object instantiated from the class with the provided name
 */
@SuppressWarnings("String_Node_Str") static AbstractScheduler loadScheduler(final String schedulerClassName,final DeploymentManager deploymentManager,final InstanceManager instanceManager){
  Class<? extends AbstractScheduler> schedulerClass;
  try {
    schedulerClass=(Class<? extends AbstractScheduler>)Class.forName(schedulerClassName);
  }
 catch (  ClassNotFoundException e) {
    LOG.error("String_Node_Str" + schedulerClassName + "String_Node_Str"+ StringUtils.stringifyException(e));
    return null;
  }
  Constructor<? extends AbstractScheduler> constructor;
  try {
    Class<?>[] constructorArgs={DeploymentManager.class,InstanceManager.class};
    constructor=schedulerClass.getConstructor(constructorArgs);
  }
 catch (  NoSuchMethodException e) {
    LOG.error("String_Node_Str" + StringUtils.stringifyException(e));
    return null;
  }
catch (  SecurityException e) {
    LOG.error("String_Node_Str" + StringUtils.stringifyException(e));
    return null;
  }
  AbstractScheduler scheduler;
  try {
    scheduler=constructor.newInstance(deploymentManager,instanceManager);
  }
 catch (  InstantiationException e) {
    LOG.error("String_Node_Str" + StringUtils.stringifyException(e));
    return null;
  }
catch (  IllegalAccessException e) {
    LOG.error("String_Node_Str" + StringUtils.stringifyException(e));
    return null;
  }
catch (  IllegalArgumentException e) {
    LOG.error("String_Node_Str" + StringUtils.stringifyException(e));
    return null;
  }
catch (  InvocationTargetException e) {
    LOG.error("String_Node_Str" + StringUtils.stringifyException(e));
    return null;
  }
  return scheduler;
}

Fixed version (ground truth):
/** 
 * Tries to locate a class with given name and to instantiate a   {@link AbstractScheduler} object from it.
 * @param schedulerClassName the name of the class to instantiate the scheduler object from
 * @param deploymentManager the deployment manager which shall be passed on to the scheduler
 * @param instanceManager the instance manager which shall be passed on to the scheduler
 * @return the {@link AbstractScheduler} object instantiated from the class with the provided name
 */
@SuppressWarnings("String_Node_Str") static AbstractScheduler loadScheduler(final String schedulerClassName,final DeploymentManager deploymentManager,final InstanceManager instanceManager){
  Class<? extends AbstractScheduler> schedulerClass;
  try {
    schedulerClass=(Class<? extends AbstractScheduler>)Class.forName(schedulerClassName);
  }
 catch (  ClassNotFoundException e) {
    LOG.error("String_Node_Str" + schedulerClassName + "String_Node_Str"+ StringUtils.stringifyException(e));
    return null;
  }
  Constructor<? extends AbstractScheduler> constructor;
  try {
    Class<?>[] constructorArgs={DeploymentManager.class,InstanceManager.class};
    constructor=schedulerClass.getConstructor(constructorArgs);
  }
 catch (  Exception e) {
    LOG.error("String_Node_Str" + StringUtils.stringifyException(e));
    return null;
  }
  AbstractScheduler scheduler;
  try {
    scheduler=constructor.newInstance(deploymentManager,instanceManager);
  }
 catch (  Exception e) {
    LOG.error("String_Node_Str" + StringUtils.stringifyException(e));
    return null;
  }
  return scheduler;
}