Program: 118900
Project: 118900
Buggy source:
protected String getBasePathClasspath() throws ProcessorException {
  final String classPathSeparator=extractClassPathSeparator();
  final String rootWorkingDir=getRootWorkingDir(false);
  StringBuffer basePath=new StringBuffer(50);
  if (isExportConfig() || isRunAsExport()) {
    basePath.append('.');
    basePath.append(classPathSeparator);
    if (rootWorkingDir.length() > 0) {
      basePath.append(rootWorkingDir);
      basePath.append(classPathSeparator);
    }
    if (isExternalUse()) {
      if (rootWorkingDir.length() > 0) {
        basePath.append(rootWorkingDir);
        basePath.append(JavaUtils.PATH_SEPARATOR);
      }
      basePath.append(getBaseLibPath());
      basePath.append(JavaUtils.PATH_SEPARATOR);
      basePath.append(JavaUtils.ROUTINE_JAR_NAME + FileExtensions.JAR_FILE_SUFFIX);
    }
 else {
      String outputPath=getCodeLocation();
      if (outputPath != null) {
        outputPath=outputPath.replace(ProcessorUtilities.TEMP_JAVA_CLASSPATH_SEPARATOR,classPathSeparator);
        if (outputPath.endsWith(classPathSeparator)) {
          outputPath=outputPath.substring(0,outputPath.length() - 1);
        }
        if (!Platform.OS_WIN32.equals(getTargetPlatform())) {
          String libraryPath=ProcessorUtilities.getLibraryPath();
          if (libraryPath != null) {
            String unixRootPath=getRootWorkingDir(true);
            outputPath=outputPath.replace(libraryPath,unixRootPath + libraryPath);
          }
        }
      }
      basePath.append(outputPath);
    }
    String codeLocation=getCodeLocation();
    if (codeLocation != null && codeLocation.contains(JavaUtils.SYSTEM_ROUTINE_JAR) && codeLocation.contains(JavaUtils.USER_ROUTINE_JAR) && !basePath.toString().contains(JavaUtils.SYSTEM_ROUTINE_JAR)) {
      codeLocation=codeLocation.replace(ProcessorUtilities.TEMP_JAVA_CLASSPATH_SEPARATOR,classPathSeparator);
      basePath.append(codeLocation);
    }
  }
 else {
    ITalendProcessJavaProject tProcessJvaProject=this.getTalendJavaProject();
    IFolder classesFolder=tProcessJvaProject.getOutputFolder();
    String outputPath=classesFolder.getLocation().toPortableString();
    outputPath+=classPathSeparator + '.';
    basePath.append(outputPath);
  }
  return basePath.toString();
}

Fixed version (ground truth):
protected String getBasePathClasspath() throws ProcessorException {
  final String classPathSeparator=extractClassPathSeparator();
  final String rootWorkingDir=getRootWorkingDir(false);
  StringBuffer basePath=new StringBuffer(50);
  if (isExportConfig() || isRunAsExport()) {
    basePath.append('.');
    basePath.append(classPathSeparator);
    if (rootWorkingDir.length() > 0) {
      basePath.append(rootWorkingDir);
      basePath.append(classPathSeparator);
    }
    if (isExternalUse()) {
      if (rootWorkingDir.length() > 0) {
        basePath.append(rootWorkingDir);
        basePath.append(JavaUtils.PATH_SEPARATOR);
      }
      basePath.append(getBaseLibPath());
      basePath.append(JavaUtils.PATH_SEPARATOR);
      basePath.append(JavaUtils.ROUTINE_JAR_NAME + FileExtensions.JAR_FILE_SUFFIX);
    }
 else {
      String outputPath=getCodeLocation();
      if (outputPath != null) {
        outputPath=outputPath.replace(ProcessorUtilities.TEMP_JAVA_CLASSPATH_SEPARATOR,classPathSeparator);
        if (outputPath.endsWith(classPathSeparator)) {
          outputPath=outputPath.substring(0,outputPath.length() - 1);
        }
        if (!Platform.OS_WIN32.equals(getTargetPlatform())) {
          String libraryPath=ProcessorUtilities.getLibraryPath();
          if (libraryPath != null) {
            String unixRootPath=getRootWorkingDir(true);
            outputPath=outputPath.replace(libraryPath,unixRootPath + libraryPath);
          }
        }
      }
      basePath.append(outputPath);
    }
    String codeLocation=getCodeLocation();
    if (codeLocation != null && codeLocation.contains(JavaUtils.SYSTEM_ROUTINE_JAR) && codeLocation.contains(JavaUtils.USER_ROUTINE_JAR) && !basePath.toString().contains(JavaUtils.SYSTEM_ROUTINE_JAR)) {
      basePath.append(classPathSeparator);
      codeLocation=codeLocation.replace(ProcessorUtilities.TEMP_JAVA_CLASSPATH_SEPARATOR,classPathSeparator);
      basePath.append(codeLocation);
    }
  }
 else {
    ITalendProcessJavaProject tProcessJvaProject=this.getTalendJavaProject();
    IFolder classesFolder=tProcessJvaProject.getOutputFolder();
    String outputPath=classesFolder.getLocation().toPortableString();
    outputPath+=classPathSeparator + '.';
    basePath.append(outputPath);
  }
  return basePath.toString();
}