Program: 51930
Project: 51930
Buggy source:
/** 
 * This attempts to find the DSpace home directory, based on system properties, and the providedHome (if not null). <p>The initial value of   {@code dspace.dir} will be:</p><ol> <li>the value of the system property  {@code dspace.dir} if defined;</li><li>else the value of  {@code providedHome} if not null;</li><li>else the servlet container's home + "/dspace/" if defined (see  {@link getCatalina()});</li> <li>else the user's home directory if defined;</li> <li>else "/". </ol>
 * @param providedHome provided home directory (may be null)
 * @return full path to DSpace home
 */
protected String getDSpaceHome(String providedHome){
  String sysProperty=System.getProperty(DSPACE_HOME);
  if (isValidDSpaceHome(sysProperty)) {
    return sysProperty;
  }
  if (isValidDSpaceHome(providedHome)) {
    return providedHome;
  }
  String pathRelativeToJar=null;
  try {
    URL jarLocation=getClass().getProtectionDomain().getCodeSource().getLocation();
    pathRelativeToJar=new File(jarLocation.toURI()).getParentFile().getParentFile().getAbsolutePath();
    if (isValidDSpaceHome(pathRelativeToJar)) {
      return pathRelativeToJar;
    }
  }
 catch (  URISyntaxException e) {
  }
  String catalina=getCatalina();
  if (isValidDSpaceHome(catalina)) {
    return catalina;
  }
  String userHome=System.getProperty("String_Node_Str");
  if (isValidDSpaceHome(userHome)) {
    return userHome;
  }
  if (isValidDSpaceHome("String_Node_Str")) {
    return "String_Node_Str";
  }
  throw new RuntimeException("String_Node_Str" + "String_Node_Str" + File.separatorChar + DSPACE_CONFIG_DEFINITION_PATH+ "String_Node_Str"+ "String_Node_Str"+ DSPACE_HOME+ "String_Node_Str");
}

Fixed version (ground truth):
/** 
 * This attempts to find the DSpace home directory, based on system properties, and the providedHome (if not null). <p>The initial value of   {@code dspace.dir} will be:</p><ol> <li>the value of the system property  {@code dspace.dir} if defined;</li><li>else the value of  {@code providedHome} if not null;</li><li>else the servlet container's home + "/dspace/" if defined (see  {@link DSpaceConfigurationService#getCatalina()});</li> <li>else the user's home directory if defined;</li> <li>else "/".</li> </ol>
 * @param providedHome provided home directory (may be null)
 * @return full path to DSpace home
 */
protected String getDSpaceHome(String providedHome){
  String sysProperty=System.getProperty(DSPACE_HOME);
  if (isValidDSpaceHome(sysProperty)) {
    return sysProperty;
  }
  if (isValidDSpaceHome(providedHome)) {
    return providedHome;
  }
  String pathRelativeToJar=null;
  try {
    URL jarLocation=getClass().getProtectionDomain().getCodeSource().getLocation();
    pathRelativeToJar=new File(jarLocation.toURI()).getParentFile().getParentFile().getAbsolutePath();
    if (isValidDSpaceHome(pathRelativeToJar)) {
      return pathRelativeToJar;
    }
  }
 catch (  URISyntaxException e) {
  }
  String catalina=getCatalina();
  if (isValidDSpaceHome(catalina)) {
    return catalina;
  }
  String userHome=System.getProperty("String_Node_Str");
  if (isValidDSpaceHome(userHome)) {
    return userHome;
  }
  if (isValidDSpaceHome("String_Node_Str")) {
    return "String_Node_Str";
  }
  throw new RuntimeException("String_Node_Str" + "String_Node_Str" + File.separatorChar + DSPACE_CONFIG_DEFINITION_PATH+ "String_Node_Str"+ "String_Node_Str"+ DSPACE_HOME+ "String_Node_Str");
}