| indexOf(CharSequence, int, int) |   | 12% |   | 5% | 9 | 10 | 16 | 18 | 0 | 1 |
| getSystemProperty(String) |  | 16% | | n/a | 0 | 1 | 3 | 4 | 0 | 1 |
| toLegalFileName(String, char) |   | 86% |   | 66% | 2 | 4 | 0 | 6 | 0 | 1 |
| current() |   | 42% |   | 33% | 3 | 4 | 4 | 7 | 0 | 1 |
| getIllegalFileNameCodePoints() |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| trimExtension(CharSequence) |   | 71% |   | 50% | 1 | 2 | 0 | 2 | 0 | 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 |
| 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 |
| getIllegalFileNameChars() |  | 100% |  | 100% | 0 | 2 | 0 | 4 | 0 | 1 |
| isLegalFileName(CharSequence) |  | 100% |   | 87% | 1 | 5 | 0 | 5 | 0 | 1 |
| isReservedFileName(CharSequence) |  | 100% |  | 100% | 0 | 3 | 0 | 2 | 0 | 1 |
| replace(String, char, char) |  | 100% |  | 100% | 0 | 2 | 0 | 1 | 0 | 1 |
| isIllegalFileNameChar(int) |  | 100% |  | 100% | 0 | 2 | 0 | 1 | 0 | 1 |
| lambda$toLegalFileName$0(char, int) |  | 100% |  | 100% | 0 | 2 | 0 | 1 | 0 | 1 |
| normalizeSeparators(String) |  | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |
| getOsMatchesName(String) |  | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |
| getReservedFileNames() |  | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |
| getBlockSize() | | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |
| isCaseSensitive() | | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |
| supportsDriveLetter() | | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |
| getCurrent() | | 100% | | n/a | 0 | 1 | 0 | 1 | 0 | 1 |