Open java.base/java.io to the unnamed module
Open java.base/java.io to the unnamed module

- used by LogFileHandler via NativeIO

vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa