| indexOf(CharSequence, int, int) |  | 0% | | 0% | 10 | 10 | 18 | 18 | 1 | 1 |
| toLegalFileName(String, char) | | 0% | | 0% | 4 | 4 | 6 | 6 | 1 | 1 |
| getIllegalFileNameChars() | | 0% | | 0% | 2 | 2 | 4 | 4 | 1 | 1 |
| isLegalFileName(CharSequence) | | 0% | | 0% | 5 | 5 | 5 | 5 | 1 | 1 |
| isReservedFileName(CharSequence) | | 0% | | 0% | 3 | 3 | 2 | 2 | 1 | 1 |
| getSystemProperty(String) | | 16% | | n/a | 0 | 1 | 3 | 4 | 0 | 1 |
| trimExtension(CharSequence) | | 0% | | 0% | 2 | 2 | 2 | 2 | 1 | 1 |
| current() |  | 28% | | 16% | 3 | 4 | 5 | 7 | 0 | 1 |
| replace(String, char, char) | | 0% | | 0% | 2 | 2 | 1 | 1 | 1 | 1 |
| isIllegalFileNameChar(int) | | 0% | | 0% | 2 | 2 | 1 | 1 | 1 | 1 |
| lambda$toLegalFileName$0(char, int) | | 0% | | 0% | 2 | 2 | 1 | 1 | 1 | 1 |
| normalizeSeparators(String) | | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| getIllegalFileNameCodePoints() | | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| getReservedFileNames() | | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| getBlockSize() | | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| getMaxFileNameLength() | | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| getMaxPathLength() | | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| getNameSeparator() | | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| isCasePreserving() | | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| supportsDriveLetter() | | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| isOsNameMatch(String, String) | | 83% | | 50% | 1 | 2 | 1 | 3 | 0 | 1 |
| static {...} | | 100% | | n/a | 0 | 1 | 0 | 9 | 0 | 1 |
| FileSystem(String, int, int, boolean, boolean, int, int, int[], String[], boolean, boolean, char) | | 100% | | n/a | 0 | 1 | 0 | 13 | 0 | 1 |
| getOsMatchesName(String) | | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |
| isCaseSensitive() | | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |
| getCurrent() | | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |