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try {
  FileInputStream fis = new FileInputStream(System.getenv("APPDATA") + args[0]);
} catch (FileNotFoundException e) {
  // Log the exception
  throw e;
}

Noncompliant Code Example

This noncompliant code example logs the exception and wraps it in an unchecked exception before re-throwing it.

try {
  FileInputStream fis = new FileInputStream(System.getenv("APPDATA") + args[0]);
} catch (FileNotFoundException e) {
  // Log the exception
  throw new RuntimeException("Unable to retrieve file", e);
}

Compliant Solution

To overcome the problems, the exception must be caught while taking special care to sanitize the message before propagating it to the caller. In cases where the exception type itself can reveal too much information, consider throwing a different exception altogether (with a different message, or possibly a higher level exception, referred to as exception translation). The MyExceptionReporter class described in EXC01-J. Use a class dedicated to reporting exceptions is a good choice, as this compliant solution exemplifies.

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