Program: 21580
Project: 21580
Buggy source:
/** 
 * for updating the contents of the details viewer. public because this is used in certain view actions
 */
public void updateDetailsPanel(){
  detailsViewer.getDisplay().asyncExec(new Runnable(){
    public void run(){
      TreeItem[] items=testsViewer.getTree().getSelection();
      for (int i=0; i < items.length; i++) {
        ITest testitem=(ITest)items[i].getData();
        if (testitem.getTestElementType() != TestElementType.TESTMETHOD || ((TestMethod)testitem).getResult().trim().length() == 0) {
          continue;
        }
        TestMethod method=(TestMethod)testitem;
        TableItem nameRow=newTableItem();
        FailureTrace trace=new FailureTrace(method,method.getParent().getFilePath(),1);
        if (method.getTagcontext() != null && method.getTagcontext().length > 0) {
          System.out.println(method.getTagcontext());
          Map thisContext=method.getTagcontext()[0];
          trace.setFilePath((String)thisContext.get("String_Node_Str"));
          trace.setFileLine((Integer)thisContext.get("String_Node_Str"));
        }
        nameRow.setData(trace);
        nameRow.setText(method.getName());
        TableItem exceptionMessageRow=newTableItem();
        exceptionMessageRow.setData(trace);
        exceptionMessageRow.setText(method.getException());
        if (method.getStatus() == TestStatus.ERROR) {
          exceptionMessageRow.setImage(ResourceManager.getImage(ResourceManager.CIRCLE_ERROR));
        }
 else {
          exceptionMessageRow.setImage(ResourceManager.getImage(ResourceManager.CIRCLE_FAIL));
        }
        Map[] tc=method.getTagcontext();
        if (tc != null && tc.length > 0) {
          TableItem traceRow=null;
          for (int j=0; j < method.getTagcontext().length; j++) {
            String fileName=(String)tc[j].get("String_Node_Str");
            Integer fileLine=(Integer)tc[j].get("String_Node_Str");
            FailureTrace detailTrace=new FailureTrace(method,fileName,fileLine);
            traceRow=newTableItem();
            traceRow.setData(detailTrace);
            if (fileName.toLowerCase().endsWith("String_Node_Str")) {
              traceRow.setImage(ResourceManager.getImage(ResourceManager.CFCSTACKFRAME));
            }
 else {
              traceRow.setImage(ResourceManager.getImage(ResourceManager.CFMSTACKFRAME));
            }
            traceRow.setText(fileName + "String_Node_Str" + fileLine);
          }
          detailsViewer.showItem(traceRow);
        }
        if (items.length > 1) {
          newTableItem().setText("String_Node_Str");
        }
      }
    }
  }
);
}

Fixed version (ground truth):
/** 
 * for updating the contents of the details viewer. public because this is used in certain view actions
 */
public void updateDetailsPanel(){
  detailsViewer.getDisplay().asyncExec(new Runnable(){
    public void run(){
      TreeItem[] items=testsViewer.getTree().getSelection();
      for (int i=0; i < items.length; i++) {
        ITest testitem=(ITest)items[i].getData();
        if (testitem.getTestElementType() != TestElementType.TESTMETHOD || ((TestMethod)testitem).getResult().trim().length() == 0) {
          continue;
        }
        TestMethod method=(TestMethod)testitem;
        TableItem nameRow=newTableItem();
        FailureTrace trace=new FailureTrace(method,method.getParent().getFilePath(),1);
        if (method.getTagcontext().length > 0) {
          Map thisContext=method.getTagcontext()[0];
          trace.setFilePath((String)thisContext.get("String_Node_Str"));
          trace.setFileLine((Integer)thisContext.get("String_Node_Str"));
        }
        nameRow.setData(trace);
        nameRow.setText(method.getName());
        TableItem exceptionMessageRow=newTableItem();
        exceptionMessageRow.setData(trace);
        exceptionMessageRow.setText(method.getException());
        if (method.getStatus() == TestStatus.ERROR) {
          exceptionMessageRow.setImage(ResourceManager.getImage(ResourceManager.CIRCLE_ERROR));
        }
 else {
          exceptionMessageRow.setImage(ResourceManager.getImage(ResourceManager.CIRCLE_FAIL));
        }
        Map[] tc=method.getTagcontext();
        if (tc.length > 0) {
          TableItem traceRow=null;
          for (int j=0; j < method.getTagcontext().length; j++) {
            String fileName=(String)tc[j].get("String_Node_Str");
            Integer fileLine=(Integer)tc[j].get("String_Node_Str");
            FailureTrace detailTrace=new FailureTrace(method,fileName,fileLine);
            traceRow=newTableItem();
            traceRow.setData(detailTrace);
            if (fileName.toLowerCase().endsWith("String_Node_Str")) {
              traceRow.setImage(ResourceManager.getImage(ResourceManager.CFCSTACKFRAME));
            }
 else {
              traceRow.setImage(ResourceManager.getImage(ResourceManager.CFMSTACKFRAME));
            }
            traceRow.setText(fileName + "String_Node_Str" + fileLine);
          }
          detailsViewer.showItem(traceRow);
        }
        if (items.length > 1) {
          newTableItem().setText("String_Node_Str");
        }
      }
    }
  }
);
}