Program: 11953
Project: 11953
Buggy source:
public void run(IAction action){
  store=getIPreferenceStore();
  Configuration config=getConfiguration(store,selection);
  PropertiesLoader props=getPropertiesLoader(store.getString(Preference.lang));
  StructuredSelection structuredSelection=null;
  try {
    if (selection instanceof StructuredSelection) {
      structuredSelection=(StructuredSelection)selection;
    }
    if (isNotSelected(structuredSelection)) {
      openWarningForRequired(props);
      return;
    }
 else     if (isSelectedSeveral(structuredSelection)) {
      openWarningForSelectOneOnly(props);
      return;
    }
    String resourcePathForTargetClassFile=getResourcePathForTargetClassFile(structuredSelection).replaceFirst(config.directoryPathOfTestSourceCode,config.directoryPathOfProductSourceCode);
    String resourcePathForTestCaseFile=resourcePathForTargetClassFile.replaceFirst(config.directoryPathOfProductSourceCode,config.directoryPathOfTestSourceCode).replaceFirst("String_Node_Str",StringValue.JUnit.TestClassNameSuffix + StringValue.FileExtension.JavaFile);
    String projectName=getProjectName(structuredSelection);
    String projectRootAbsolutePath=getWorkspaceRootAbsolutePath(getIWorkspaceRoot()) + StringValue.DirectorySeparator.General + projectName+ StringValue.DirectorySeparator.General;
    if (!resourcePathForTestCaseFile.matches("String_Node_Str" + RegExp.FileExtension.JavaFile)) {
      openWarningForSelectJavaFile(props);
      return;
    }
    String targetClassName=getClassNameFromResourcePathForTargetClassFile(resourcePathForTargetClassFile);
    String testCaseFilename=getTestClassNameFromClassName(targetClassName);
    String msg=props.get(Dialog.Common.confirmToChangeToJUnitVersion3) + "String_Node_Str" + testCaseFilename+ "String_Node_Str";
    if (testCaseFilename == null || !openConfirm(props,msg)) {
      return;
    }
    System.setProperty("String_Node_Str","String_Node_Str");
    ForceJUnitVersion3Command.main(new String[]{projectRootAbsolutePath + resourcePathForTargetClassFile});
    ThreadUtil.sleep(200);
    int retryCount=0;
    while (true) {
      try {
        if (!ResourceRefreshUtil.refreshLocal(null,projectName + StringValue.DirectorySeparator.General + resourcePathForTestCaseFile+ "String_Node_Str")) {
          openWarningForResourceRefreshError(props);
          System.err.println("String_Node_Str");
          return;
        }
        retryCount=0;
        ThreadUtil.sleep(1500);
      }
 catch (      Exception e) {
        retryCount++;
        if (retryCount > 10) {
          break;
        }
        e.printStackTrace();
        ThreadUtil.sleep(1500);
      }
      break;
    }
  }
 catch (  Exception e) {
    e.printStackTrace();
  }
}

Fixed version (ground truth):
public void run(IAction action){
  store=getIPreferenceStore();
  Configuration config=getConfiguration(store,selection);
  PropertiesLoader props=getPropertiesLoader(store.getString(Preference.lang));
  StructuredSelection structuredSelection=null;
  try {
    if (selection instanceof StructuredSelection) {
      structuredSelection=(StructuredSelection)selection;
    }
    if (isNotSelected(structuredSelection)) {
      openWarningForRequired(props);
      return;
    }
 else     if (isSelectedSeveral(structuredSelection)) {
      openWarningForSelectOneOnly(props);
      return;
    }
    String resourcePathForTargetClassFile=getResourcePathForTargetClassFile(structuredSelection).replaceFirst(config.directoryPathOfTestSourceCode,config.directoryPathOfProductSourceCode);
    String resourcePathForTestCaseFile=resourcePathForTargetClassFile.replaceFirst(config.directoryPathOfProductSourceCode,config.directoryPathOfTestSourceCode).replaceFirst("String_Node_Str",StringValue.JUnit.TestClassNameSuffix + StringValue.FileExtension.JavaFile);
    String projectName=getProjectName(structuredSelection);
    String projectRootAbsolutePath=getIWorkspaceRoot().findMember(projectName).getLocationURI().getPath() + StringValue.DirectorySeparator.General;
    if (!resourcePathForTestCaseFile.matches("String_Node_Str" + RegExp.FileExtension.JavaFile)) {
      openWarningForSelectJavaFile(props);
      return;
    }
    String targetClassName=getClassNameFromResourcePathForTargetClassFile(resourcePathForTargetClassFile);
    String testCaseFilename=getTestClassNameFromClassName(targetClassName);
    String msg=props.get(Dialog.Common.confirmToChangeToJUnitVersion3) + "String_Node_Str" + testCaseFilename+ "String_Node_Str";
    if (testCaseFilename == null || !openConfirm(props,msg)) {
      return;
    }
    System.setProperty("String_Node_Str","String_Node_Str");
    ForceJUnitVersion3Command.main(new String[]{projectRootAbsolutePath + resourcePathForTargetClassFile});
    ThreadUtil.sleep(200);
    int retryCount=0;
    while (true) {
      try {
        if (!ResourceRefreshUtil.refreshLocal(null,projectName + StringValue.DirectorySeparator.General + resourcePathForTestCaseFile+ "String_Node_Str")) {
          openWarningForResourceRefreshError(props);
          System.err.println("String_Node_Str");
          return;
        }
        retryCount=0;
        ThreadUtil.sleep(1500);
      }
 catch (      Exception e) {
        retryCount++;
        if (retryCount > 10) {
          break;
        }
        e.printStackTrace();
        ThreadUtil.sleep(1500);
      }
      break;
    }
  }
 catch (  Exception e) {
    e.printStackTrace();
  }
}