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Find next available TCP port.
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| import java.net.ServerSocket; | |
| class PortUtil { | |
| private PortUtil() {} | |
| /** | |
| * Recursively loops until finding a available TCP port, locks it, get | |
| * its value and then releases it. | |
| * | |
| * @return next available port. | |
| */ | |
| static int nextAvailablePort() { | |
| try (var s = new ServerSocket(0)) { | |
| return s.getLocalPort(); | |
| } catch (final IOException e) { | |
| return nextAvailablePort(); | |
| } | |
| } | |
| } |
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