Program: 67448
Project: 67448
Buggy source:
private void placeComponents(){
{
    GridLayout glContent=new GridLayout();
    glContent.numColumns=2;
    glContent.marginHeight=2;
    glContent.marginWidth=4;
    this.setLayout(glContent);
  }
  grpLeaderLine=new Group(this,SWT.NONE);
{
    GridData gdGRPLeaderLine=new GridData(GridData.FILL_BOTH);
    grpLeaderLine.setLayoutData(gdGRPLeaderLine);
    GridLayout glLeaderLine=new GridLayout();
    glLeaderLine.numColumns=2;
    glLeaderLine.marginHeight=0;
    glLeaderLine.marginWidth=2;
    glLeaderLine.verticalSpacing=0;
    grpLeaderLine.setLayout(glLeaderLine);
    grpLeaderLine.setText(Messages.getString("String_Node_Str"));
  }
  liacLeaderLine=new LineAttributesComposite(grpLeaderLine,SWT.NONE,context,series.getLeaderLineAttributes(),true,true,true);
  GridData gdLIACLeaderLine=new GridData(GridData.FILL_HORIZONTAL);
  gdLIACLeaderLine.horizontalSpan=2;
  liacLeaderLine.setLayoutData(gdLIACLeaderLine);
  liacLeaderLine.addListener(this);
  Composite cmpStyle=new Composite(grpLeaderLine,SWT.NONE);
{
    GridLayout gl=new GridLayout(2,false);
    gl.marginHeight=0;
    gl.marginBottom=0;
    cmpStyle.setLayout(gl);
    GridData gd=new GridData(GridData.FILL_HORIZONTAL);
    gd.horizontalSpan=2;
    cmpStyle.setLayoutData(gd);
  }
  Label lblLeaderStyle=new Label(cmpStyle,SWT.NONE);
  GridData gdLBLLeaderStyle=new GridData();
  lblLeaderStyle.setLayoutData(gdLBLLeaderStyle);
  lblLeaderStyle.setText(Messages.getString("String_Node_Str"));
  cmbLeaderLine=new Combo(cmpStyle,SWT.DROP_DOWN | SWT.READ_ONLY);
  GridData gdCMBLeaderLine=new GridData(GridData.FILL_HORIZONTAL);
  cmbLeaderLine.setLayoutData(gdCMBLeaderLine);
  cmbLeaderLine.addSelectionListener(this);
  Label lblLeaderSize=new Label(cmpStyle,SWT.NONE);
  GridData gdLBLLeaderSize=new GridData();
  lblLeaderSize.setLayoutData(gdLBLLeaderSize);
  lblLeaderSize.setText(Messages.getString("String_Node_Str"));
  iscLeaderLength=new Spinner(cmpStyle,SWT.BORDER);
  GridData gdISCLeaderLength=new GridData(GridData.FILL_HORIZONTAL);
  iscLeaderLength.setLayoutData(gdISCLeaderLength);
  iscLeaderLength.setMinimum(0);
  iscLeaderLength.setMaximum(MAX_LEADER_LENGTH);
  iscLeaderLength.setSelection((int)series.getLeaderLineLength());
  iscLeaderLength.addSelectionListener(this);
  Composite cmpRight=new Composite(this,SWT.NONE);
{
    cmpRight.setLayout(new GridLayout(3,false));
    cmpRight.setLayoutData(new GridData(GridData.FILL_BOTH));
  }
  createSeriesDetail(cmpRight);
  populateLists();
}

Fixed version (ground truth):
private void placeComponents(){
{
    GridLayout glContent=new GridLayout();
    glContent.numColumns=2;
    glContent.marginHeight=2;
    glContent.marginWidth=4;
    this.setLayout(glContent);
  }
  grpLeaderLine=new Group(this,SWT.NONE);
{
    GridData gdGRPLeaderLine=new GridData(GridData.FILL_BOTH);
    grpLeaderLine.setLayoutData(gdGRPLeaderLine);
    GridLayout glLeaderLine=new GridLayout();
    glLeaderLine.numColumns=2;
    glLeaderLine.marginHeight=0;
    glLeaderLine.marginWidth=2;
    glLeaderLine.verticalSpacing=0;
    grpLeaderLine.setLayout(glLeaderLine);
    grpLeaderLine.setText(Messages.getString("String_Node_Str"));
  }
  liacLeaderLine=new LineAttributesComposite(grpLeaderLine,SWT.NONE,context,series.getLeaderLineAttributes(),true,true,true,true,true);
  GridData gdLIACLeaderLine=new GridData(GridData.FILL_HORIZONTAL);
  gdLIACLeaderLine.horizontalSpan=2;
  liacLeaderLine.setLayoutData(gdLIACLeaderLine);
  liacLeaderLine.addListener(this);
  Composite cmpStyle=new Composite(grpLeaderLine,SWT.NONE);
{
    GridLayout gl=new GridLayout(2,false);
    gl.marginHeight=0;
    gl.marginBottom=0;
    cmpStyle.setLayout(gl);
    GridData gd=new GridData(GridData.FILL_HORIZONTAL);
    gd.horizontalSpan=2;
    cmpStyle.setLayoutData(gd);
  }
  Label lblLeaderStyle=new Label(cmpStyle,SWT.NONE);
  GridData gdLBLLeaderStyle=new GridData();
  lblLeaderStyle.setLayoutData(gdLBLLeaderStyle);
  lblLeaderStyle.setText(Messages.getString("String_Node_Str"));
  cmbLeaderLine=new Combo(cmpStyle,SWT.DROP_DOWN | SWT.READ_ONLY);
  GridData gdCMBLeaderLine=new GridData(GridData.FILL_HORIZONTAL);
  cmbLeaderLine.setLayoutData(gdCMBLeaderLine);
  cmbLeaderLine.addSelectionListener(this);
  Label lblLeaderSize=new Label(cmpStyle,SWT.NONE);
  GridData gdLBLLeaderSize=new GridData();
  lblLeaderSize.setLayoutData(gdLBLLeaderSize);
  lblLeaderSize.setText(Messages.getString("String_Node_Str"));
  iscLeaderLength=new Spinner(cmpStyle,SWT.BORDER);
  GridData gdISCLeaderLength=new GridData(GridData.FILL_HORIZONTAL);
  iscLeaderLength.setLayoutData(gdISCLeaderLength);
  iscLeaderLength.setMinimum(0);
  iscLeaderLength.setMaximum(MAX_LEADER_LENGTH);
  iscLeaderLength.setSelection((int)series.getLeaderLineLength());
  iscLeaderLength.addSelectionListener(this);
  Composite cmpRight=new Composite(this,SWT.NONE);
{
    cmpRight.setLayout(new GridLayout(3,false));
    cmpRight.setLayoutData(new GridData(GridData.FILL_BOTH));
  }
  createSeriesDetail(cmpRight);
  populateLists();
}