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protected PermissionCollection getPermissions(CodeSource cs) {
  PermissionCollection pc = new Permissions();
  // allowAllow exit from the VM anytime
  pc.add(new RuntimePermission("exitVM"));
  return pc;
}

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In this compliant solution, the getPermissions() method calls super.getPermissions(). As a result, the default systemwide security policy is applied , in addition to the custom policy.

protected PermissionCollection getPermissions(CodeSource cs) {
  PermissionCollection pc = super.getPermissions(cs);
  // allowAllow exit from the VM anytime
  pc.add(new RuntimePermission("exitVM"));
  return pc;
}

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Automated Detection

Violations of this rule can be discovered with a heuristic checker in the style of FindBugs. As with all heuristic checks, achieving a low false-positive rate is essential.

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The java.security package exists on Android for compatibility purposes only, and it should not be used.

Bibliography

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