Program: 5072
Project: 5072
Buggy source:
public static void launch(String path) throws IOException {
  if (!loadedWithoutErrors) {
    throw new IOException("String_Node_Str" + errorMessage);
  }
  Object browser=locateBrowser();
  if (browser == null) {
    throw new IOException("String_Node_Str" + errorMessage);
  }
  String command;
switch (jvm) {
case MRJ_2_1:
    Runtime.getRuntime().exec(new String[]{(String)browser,path});
  break;
case WINDOWS_NT:
File f=new File(path);
if (f.isFile()) {
FileInputStream fis=new FileInputStream(f);
String hex=Integer.toHexString(fis.read());
hex+=Integer.toHexString(fis.read());
if (hex.equals("String_Node_Str")) {
  Utilities.showError("String_Node_Str" + "String_Node_Str");
  return;
}
command="String_Node_Str" + "String_Node_Str" + checkChars(path) + "String_Node_Str";
Runtime.getRuntime().exec(command);
}
break;
case WINDOWS_9x:
File f=new File(path);
if (f.isFile()) {
FileInputStream fis=new FileInputStream(f);
String hex=Integer.toHexString(fis.read());
hex+=Integer.toHexString(fis.read());
if (hex.equals("String_Node_Str")) {
Utilities.showError("String_Node_Str" + "String_Node_Str");
return;
}
command="String_Node_Str" + "String_Node_Str" + path + "String_Node_Str";
Runtime.getRuntime().exec(command);
}
break;
case OTHER:
String[] strs={(String)browser,NETSCAPE_REMOTE_PARAMETER,NETSCAPE_OPEN_PARAMETER_START,path,NETSCAPE_OPEN_PARAMETER_END};
Process process=Runtime.getRuntime().exec(strs);
try {
int exitCode=process.waitFor();
if (exitCode != 0) Runtime.getRuntime().exec(new String[]{(String)browser,path});
}
 catch (InterruptedException ie) {
throw new IOException("String_Node_Str" + ie.getMessage());
}
break;
default :
Runtime.getRuntime().exec(new String[]{(String)browser,path});
break;
}
}

Fixed version (ground truth):
public static void launch(String path) throws IOException {
  if (!loadedWithoutErrors) {
    throw new IOException("String_Node_Str" + errorMessage);
  }
  Object browser=locateBrowser();
  if (browser == null) {
    throw new IOException("String_Node_Str" + errorMessage);
  }
  String command;
switch (jvm) {
case MRJ_2_1:
    Runtime.getRuntime().exec(new String[]{(String)browser,path});
  break;
case WINDOWS_NT:
File f=new File(path);
if (f.isFile()) {
FileInputStream fis=new FileInputStream(f);
String hex=Integer.toHexString(fis.read());
hex+=Integer.toHexString(fis.read());
if (hex.equals("String_Node_Str")) {
  Utilities.showError("String_Node_Str" + "String_Node_Str");
  return;
}
command="String_Node_Str" + "String_Node_Str" + checkChars(path) + "String_Node_Str";
Runtime.getRuntime().exec(command);
}
break;
case WINDOWS_9x:
File fi=new File(path);
if (fi.isFile()) {
FileInputStream fis=new FileInputStream(fi);
String hex=Integer.toHexString(fis.read());
hex+=Integer.toHexString(fis.read());
if (hex.equals("String_Node_Str")) {
Utilities.showError("String_Node_Str" + "String_Node_Str");
return;
}
command="String_Node_Str" + "String_Node_Str" + path + "String_Node_Str";
Runtime.getRuntime().exec(command);
}
break;
case OTHER:
String[] strs={(String)browser,NETSCAPE_REMOTE_PARAMETER,NETSCAPE_OPEN_PARAMETER_START,path,NETSCAPE_OPEN_PARAMETER_END};
Process process=Runtime.getRuntime().exec(strs);
try {
int exitCode=process.waitFor();
if (exitCode != 0) Runtime.getRuntime().exec(new String[]{(String)browser,path});
}
 catch (InterruptedException ie) {
throw new IOException("String_Node_Str" + ie.getMessage());
}
break;
default :
Runtime.getRuntime().exec(new String[]{(String)browser,path});
break;
}
}