Program: 190638
Project: 190638
Buggy source:
public void generateAccessors(){
  MethodWriter writer=outline.createMethodWriter();
  Accessor acc=create(JExpr._this());
  JVar $idx, $value;
  JBlock body;
  if (getOptions().target.isLaterThan(SpecVersion.V2_2)) {
    $getAll=writer.declareMethod(exposedType.array(),"String_Node_Str" + prop.getName(true));
    writer.javadoc().append(prop.javadoc);
    body=$getAll.body();
    body._if(acc.ref(true).eq(JExpr._null()))._then()._return(JExpr.newArray(exposedType,0));
    JVar var=body.decl(exposedType.array(),"String_Node_Str",JExpr.newArray(implType,acc.ref(true).ref("String_Node_Str")));
    body.add(codeModel.ref(System.class).staticInvoke("String_Node_Str").arg(acc.ref(true)).arg(JExpr.lit(0)).arg(var).arg(JExpr.lit(0)).arg(acc.ref(true).ref("String_Node_Str")));
    body._return(JExpr.direct("String_Node_Str"));
    List<Object> returnTypes=listPossibleTypes(prop);
    writer.javadoc().addReturn().append("String_Node_Str").append(returnTypes);
    JMethod $get=writer.declareMethod(exposedType,"String_Node_Str" + prop.getName(true));
    $idx=writer.addParameter(codeModel.INT,"String_Node_Str");
    $get.body()._if(acc.ref(true).eq(JExpr._null()))._then()._throw(JExpr._new(codeModel.ref(IndexOutOfBoundsException.class)));
    writer.javadoc().append(prop.javadoc);
    $get.body()._return(acc.ref(true).component($idx));
    writer.javadoc().addReturn().append("String_Node_Str").append(returnTypes);
    JMethod $getLength=writer.declareMethod(codeModel.INT,"String_Node_Str" + prop.getName(true) + "String_Node_Str");
    $getLength.body()._if(acc.ref(true).eq(JExpr._null()))._then()._return(JExpr.lit(0));
    $getLength.body()._return(acc.ref(true).ref("String_Node_Str"));
    $setAll=writer.declareMethod(codeModel.VOID,"String_Node_Str" + prop.getName(true));
    writer.javadoc().append(prop.javadoc);
    $value=writer.addParameter(exposedType.array(),"String_Node_Str");
    JVar $len=$setAll.body().decl(codeModel.INT,"String_Node_Str",$value.ref("String_Node_Str"));
    $setAll.body().assign((JAssignmentTarget)acc.ref(true),JExpr.newArray(codeModel.ref(JAXBElement.class),$len));
    JForLoop _for=$setAll.body()._for();
    JVar $i=_for.init(codeModel.INT,"String_Node_Str",JExpr.lit(0));
    _for.test(JOp.lt($i,$len));
    _for.update($i.incr());
    _for.body().assign(acc.ref(true).component($i),castToImplType(acc.box($value.component($i))));
    writer.javadoc().addParam($value).append("String_Node_Str").append(returnTypes);
    JMethod $set=writer.declareMethod(exposedType,"String_Node_Str" + prop.getName(true));
    $idx=writer.addParameter(codeModel.INT,"String_Node_Str");
    $value=writer.addParameter(exposedType,"String_Node_Str");
    writer.javadoc().append(prop.javadoc);
    body=$set.body();
    body._return(JExpr.assign(acc.ref(true).component($idx),castToImplType(acc.box($value))));
    writer.javadoc().addParam($value).append("String_Node_Str").append(returnTypes);
  }
 else {
    JType arrayType=exposedType.array();
    $getAll=writer.declareMethod(exposedType.array(),"String_Node_Str" + prop.getName(true));
    writer.javadoc().append(prop.javadoc);
    body=$getAll.body();
    body._if(acc.ref(true).eq(JExpr._null()))._then()._return(JExpr.newArray(exposedType,0));
    if (primitiveType == null) {
      body._return(JExpr.cast(arrayType,acc.ref(true).invoke("String_Node_Str").arg(JExpr.newArray(implType,acc.ref(true).invoke("String_Node_Str")))));
    }
 else {
      JVar $r=body.decl(exposedType.array(),"String_Node_Str",JExpr.newArray(exposedType,acc.ref(true).invoke("String_Node_Str")));
      JForLoop loop=body._for();
      JVar $i=loop.init(codeModel.INT,"String_Node_Str",JExpr.lit(0));
      loop.test($i.lt($r.ref("String_Node_Str")));
      loop.update($i.incr());
      loop.body().assign($r.component($i),primitiveType.unwrap(acc.ref(true).invoke("String_Node_Str").arg($i)));
      body._return($r);
    }
    List<Object> returnTypes=listPossibleTypes(prop);
    writer.javadoc().addReturn().append("String_Node_Str").append(returnTypes);
    JMethod $get=writer.declareMethod(exposedType,"String_Node_Str" + prop.getName(true));
    $idx=writer.addParameter(codeModel.INT,"String_Node_Str");
    $get.body()._if(acc.ref(true).eq(JExpr._null()))._then()._throw(JExpr._new(codeModel.ref(IndexOutOfBoundsException.class)));
    writer.javadoc().append(prop.javadoc);
    $get.body()._return(acc.unbox(acc.ref(true).invoke("String_Node_Str").arg($idx)));
    writer.javadoc().addReturn().append("String_Node_Str").append(returnTypes);
    JMethod $getLength=writer.declareMethod(codeModel.INT,"String_Node_Str" + prop.getName(true) + "String_Node_Str");
    $getLength.body()._if(acc.ref(true).eq(JExpr._null()))._then()._return(JExpr.lit(0));
    $getLength.body()._return(acc.ref(true).invoke("String_Node_Str"));
    $setAll=writer.declareMethod(codeModel.VOID,"String_Node_Str" + prop.getName(true));
    writer.javadoc().append(prop.javadoc);
    $value=writer.addParameter(exposedType.array(),"String_Node_Str");
    $setAll.body().invoke(acc.ref(false),"String_Node_Str");
    JVar $len=$setAll.body().decl(codeModel.INT,"String_Node_Str",$value.ref("String_Node_Str"));
    JForLoop _for=$setAll.body()._for();
    JVar $i=_for.init(codeModel.INT,"String_Node_Str",JExpr.lit(0));
    _for.test(JOp.lt($i,$len));
    _for.update($i.incr());
    _for.body().invoke(acc.ref(true),"String_Node_Str").arg(castToImplType(acc.box($value.component($i))));
    writer.javadoc().addParam($value).append("String_Node_Str").append(returnTypes);
    JMethod $set=writer.declareMethod(exposedType,"String_Node_Str" + prop.getName(true));
    $idx=writer.addParameter(codeModel.INT,"String_Node_Str");
    $value=writer.addParameter(exposedType,"String_Node_Str");
    writer.javadoc().append(prop.javadoc);
    body=$set.body();
    body._return(acc.unbox(acc.ref(true).invoke("String_Node_Str").arg($idx).arg(castToImplType(acc.box($value)))));
    writer.javadoc().addParam($value).append("String_Node_Str").append(returnTypes);
  }
}

Fixed version (ground truth):
public void generateAccessors(){
  MethodWriter writer=outline.createMethodWriter();
  Accessor acc=create(JExpr._this());
  JVar $idx, $value;
  JBlock body;
  JType arrayType=exposedType.array();
  $getAll=writer.declareMethod(exposedType.array(),"String_Node_Str" + prop.getName(true));
  writer.javadoc().append(prop.javadoc);
  body=$getAll.body();
  body._if(acc.ref(true).eq(JExpr._null()))._then()._return(JExpr.newArray(exposedType,0));
  if (primitiveType == null) {
    body._return(JExpr.cast(arrayType,acc.ref(true).invoke("String_Node_Str").arg(JExpr.newArray(implType,acc.ref(true).invoke("String_Node_Str")))));
  }
 else {
    JVar $r=body.decl(exposedType.array(),"String_Node_Str",JExpr.newArray(exposedType,acc.ref(true).invoke("String_Node_Str")));
    JForLoop loop=body._for();
    JVar $i=loop.init(codeModel.INT,"String_Node_Str",JExpr.lit(0));
    loop.test($i.lt($r.ref("String_Node_Str")));
    loop.update($i.incr());
    loop.body().assign($r.component($i),primitiveType.unwrap(acc.ref(true).invoke("String_Node_Str").arg($i)));
    body._return($r);
  }
  List<Object> returnTypes=listPossibleTypes(prop);
  writer.javadoc().addReturn().append("String_Node_Str").append(returnTypes);
  JMethod $get=writer.declareMethod(exposedType,"String_Node_Str" + prop.getName(true));
  $idx=writer.addParameter(codeModel.INT,"String_Node_Str");
  $get.body()._if(acc.ref(true).eq(JExpr._null()))._then()._throw(JExpr._new(codeModel.ref(IndexOutOfBoundsException.class)));
  writer.javadoc().append(prop.javadoc);
  $get.body()._return(acc.unbox(acc.ref(true).invoke("String_Node_Str").arg($idx)));
  writer.javadoc().addReturn().append("String_Node_Str").append(returnTypes);
  JMethod $getLength=writer.declareMethod(codeModel.INT,"String_Node_Str" + prop.getName(true) + "String_Node_Str");
  $getLength.body()._if(acc.ref(true).eq(JExpr._null()))._then()._return(JExpr.lit(0));
  $getLength.body()._return(acc.ref(true).invoke("String_Node_Str"));
  $setAll=writer.declareMethod(codeModel.VOID,"String_Node_Str" + prop.getName(true));
  writer.javadoc().append(prop.javadoc);
  $value=writer.addParameter(exposedType.array(),"String_Node_Str");
  $setAll.body().invoke(acc.ref(false),"String_Node_Str");
  JVar $len=$setAll.body().decl(codeModel.INT,"String_Node_Str",$value.ref("String_Node_Str"));
  JForLoop _for=$setAll.body()._for();
  JVar $i=_for.init(codeModel.INT,"String_Node_Str",JExpr.lit(0));
  _for.test(JOp.lt($i,$len));
  _for.update($i.incr());
  _for.body().invoke(acc.ref(true),"String_Node_Str").arg(castToImplType(acc.box($value.component($i))));
  writer.javadoc().addParam($value).append("String_Node_Str").append(returnTypes);
  JMethod $set=writer.declareMethod(exposedType,"String_Node_Str" + prop.getName(true));
  $idx=writer.addParameter(codeModel.INT,"String_Node_Str");
  $value=writer.addParameter(exposedType,"String_Node_Str");
  writer.javadoc().append(prop.javadoc);
  body=$set.body();
  body._return(acc.unbox(acc.ref(true).invoke("String_Node_Str").arg($idx).arg(castToImplType(acc.box($value)))));
  writer.javadoc().addParam($value).append("String_Node_Str").append(returnTypes);
}