master
8237589: Fix copyright header formatting
8261744: Implement CharsetDecoder ASCII and latin-1 fast-paths
8325340: Add ASCII fast-path to Data-/ObjectInputStream.readUTF
8339699: Optimize DataOutputStream writeUTF
8311178: JMH tests don't scale well when sharing output buffers
8292623: Reduce runtime of java.io microbenchmarks
8314120: Add tests for FileDescriptor.sync
8259947: (fs) Optimize UnixPath.encode implementation
8373647: Avoid fstat when opening file for write with RandomAccessFile or FileOutputStream
8300236: Use VarHandle access in Data(Input | Output)Stream classes
8298639: Perform I/O operations in bulk for RandomAccessFile
8358533: Improve performance of java.io.Reader.readAllLines
8250669: Running JMH micros is broken after JDK-8248135