Program: 119680
Project: 119680
Buggy source:
@Override public ExecutionResult execute(Item item){
  ProcessType processType=getProcessType(item);
  try {
    boolean modified=false;
    ComponentCategory category=ComponentCategory.getComponentCategoryFromItem(item);
    for (    Object nodeObjectType : processType.getNode()) {
      NodeType nodeType=(NodeType)nodeObjectType;
      IComponent component=ComponentsFactoryProvider.getInstance().get(nodeType.getComponentName(),category.getName());
      FakeNode fNode=new FakeNode(component);
      for (      Object paramObjectType : nodeType.getElementParameter()) {
        ElementParameterType param=(ElementParameterType)paramObjectType;
        IElementParameter paramFromEmf=fNode.getElementParameter(param.getName());
        EParameterFieldType paramFromComponent=paramFromEmf.getFieldType();
        if (EParameterFieldType.PASSWORD == paramFromComponent && param.getValue() != null) {
          boolean encrypted=true;
          try {
            int ind=param.getValue().lastIndexOf(PasswordEncryptUtil.ENCRYPT_KEY);
            if (ind == -1) {
              encrypted=false;
            }
 else {
              String value=new StringBuilder(param.getValue()).replace(ind,ind + PasswordEncryptUtil.ENCRYPT_KEY.length(),"String_Node_Str").toString();
              PasswordEncryptUtil.decryptPassword(value);
            }
          }
 catch (          Exception e) {
            encrypted=false;
          }
          if (!encrypted) {
            param.setValue(PasswordEncryptUtil.encryptPassword(param.getValue()) + PasswordEncryptUtil.ENCRYPT_KEY);
            modified=true;
          }
        }
      }
    }
    if (modified) {
      ProxyRepositoryFactory factory=ProxyRepositoryFactory.getInstance();
      factory.save(item,true);
    }
  }
 catch (  Exception e) {
    ExceptionHandler.process(e);
    return ExecutionResult.FAILURE;
  }
  return ExecutionResult.SUCCESS_NO_ALERT;
}

Fixed version (ground truth):
@Override public ExecutionResult execute(Item item){
  ProcessType processType=getProcessType(item);
  try {
    boolean modified=false;
    ComponentCategory category=ComponentCategory.getComponentCategoryFromItem(item);
    for (    Object nodeObjectType : processType.getNode()) {
      NodeType nodeType=(NodeType)nodeObjectType;
      IComponent component=ComponentsFactoryProvider.getInstance().get(nodeType.getComponentName(),category.getName());
      FakeNode fNode=new FakeNode(component);
      for (      Object paramObjectType : nodeType.getElementParameter()) {
        ElementParameterType param=(ElementParameterType)paramObjectType;
        IElementParameter paramFromEmf=fNode.getElementParameter(param.getName());
        if (paramFromEmf == null) {
          continue;
        }
        EParameterFieldType paramFromComponent=paramFromEmf.getFieldType();
        if (EParameterFieldType.PASSWORD == paramFromComponent && param.getValue() != null) {
          boolean encrypted=true;
          try {
            int ind=param.getValue().lastIndexOf(PasswordEncryptUtil.ENCRYPT_KEY);
            if (ind == -1) {
              encrypted=false;
            }
 else {
              String value=new StringBuilder(param.getValue()).replace(ind,ind + PasswordEncryptUtil.ENCRYPT_KEY.length(),"String_Node_Str").toString();
              PasswordEncryptUtil.decryptPassword(value);
            }
          }
 catch (          Exception e) {
            encrypted=false;
          }
          if (!encrypted) {
            param.setValue(PasswordEncryptUtil.encryptPassword(param.getValue()) + PasswordEncryptUtil.ENCRYPT_KEY);
            modified=true;
          }
        }
      }
    }
    if (modified) {
      ProxyRepositoryFactory factory=ProxyRepositoryFactory.getInstance();
      factory.save(item,true);
    }
  }
 catch (  Exception e) {
    ExceptionHandler.process(e);
    return ExecutionResult.FAILURE;
  }
  return ExecutionResult.SUCCESS_NO_ALERT;
}