Program: 130631
Project: 130631
Buggy source:
private String translate(String program){
  XProgram init;
  try {
    init=XParser.program(program);
  }
 catch (  ParserException e) {
    int col=e.getLocation().column;
    int line=e.getLocation().line;
    topArea.requestFocusInWindow();
    topArea.area.setCaretPosition(topArea.area.getDocument().getDefaultRootElement().getElement(line - 1).getStartOffset() + (col - 1));
    String s=e.getMessage();
    String t=s.substring(s.indexOf("String_Node_Str"));
    t.split("String_Node_Str");
    e.printStackTrace();
    return "String_Node_Str" + e.getLocalizedMessage();
  }
catch (  Throwable e) {
    e.printStackTrace();
    return "String_Node_Str" + e.getLocalizedMessage();
  }
  if (init == null) {
    return "String_Node_Str";
  }
  String isaX=null, matX=null;
  XExp.XSchema isa=null, mat=null;
  for (  String line : init.order) {
    XExp exp=init.exps.get(line);
    if (exp instanceof XExp.XSchema) {
      if (isaX == null) {
        isaX=line;
        isa=(XSchema)exp;
        continue;
      }
      if (matX == null) {
        matX=line;
        mat=(XSchema)exp;
        continue;
      }
      throw new RuntimeException("String_Node_Str");
    }
  }
  if (isaX == null || matX == null) {
    throw new RuntimeException("String_Node_Str");
  }
  XEnvironment env;
  try {
    env=XDriver.makeEnv(program,init);
  }
 catch (  LineException e) {
    String toDisplay="String_Node_Str" + e.kind + "String_Node_Str"+ e.decl+ "String_Node_Str"+ e.getLocalizedMessage();
    e.printStackTrace();
    topArea.requestFocusInWindow();
    Integer theLine=init.getLine(e.decl);
    topArea.area.setCaretPosition(theLine);
    return toDisplay;
  }
catch (  Throwable re) {
    return "String_Node_Str" + re.getLocalizedMessage();
  }
  @SuppressWarnings("String_Node_Str") XCtx<String> isa0=(XCtx<String>)env.objs.get(isaX);
  @SuppressWarnings("String_Node_Str") XCtx<String> mat0=(XCtx<String>)env.objs.get(matX);
  return go(isa,mat,isaX,matX,isa0,mat0,name.getText(),kid.getText(),instField.getText(),isaField.getText());
}

Fixed version (ground truth):
private String translate(String program){
  XProgram init;
  try {
    init=XParser.program(program);
  }
 catch (  ParserException e) {
    int col=e.getLocation().column;
    int line=e.getLocation().line;
    topArea.requestFocusInWindow();
    topArea.area.setCaretPosition(topArea.area.getDocument().getDefaultRootElement().getElement(line - 1).getStartOffset() + (col - 1));
    String s=e.getMessage();
    String t=s.substring(s.indexOf("String_Node_Str"));
    t.split("String_Node_Str");
    e.printStackTrace();
    return "String_Node_Str" + e.getLocalizedMessage();
  }
catch (  Throwable e) {
    e.printStackTrace();
    return "String_Node_Str" + e.getLocalizedMessage();
  }
  if (init == null) {
    return "String_Node_Str";
  }
  String isaX=null, matX=null;
  XExp.XSchema isa=null, mat=null;
  for (  String line : init.order) {
    XExp exp=init.exps.get(line);
    if (exp instanceof XExp.XSchema) {
      if (isaX == null) {
        isaX=line;
        isa=(XSchema)exp;
        continue;
      }
      if (matX == null) {
        matX=line;
        mat=(XSchema)exp;
        continue;
      }
      throw new RuntimeException("String_Node_Str");
    }
  }
  if (isaX == null || matX == null) {
    throw new RuntimeException("String_Node_Str");
  }
  XEnvironment env;
  try {
    env=XDriver.makeEnv(program,init,new String[0]);
  }
 catch (  LineException e) {
    String toDisplay="String_Node_Str" + e.kind + "String_Node_Str"+ e.decl+ "String_Node_Str"+ e.getLocalizedMessage();
    e.printStackTrace();
    topArea.requestFocusInWindow();
    Integer theLine=init.getLine(e.decl);
    topArea.area.setCaretPosition(theLine);
    return toDisplay;
  }
catch (  Throwable re) {
    return "String_Node_Str" + re.getLocalizedMessage();
  }
  @SuppressWarnings("String_Node_Str") XCtx<String> isa0=(XCtx<String>)env.objs.get(isaX);
  @SuppressWarnings("String_Node_Str") XCtx<String> mat0=(XCtx<String>)env.objs.get(matX);
  return go(isa,mat,isaX,matX,isa0,mat0,name.getText(),kid.getText(),instField.getText(),isaField.getText());
}