private static void usage(final int errorCode) {
    System.out.println("Usage: IPCUtil [options]");
    System.out.println("Micro-benchmarking how changed sizes and counts work with buffer resizing");
    System.out.println(" --count  Count of Cells");
    System.out.println(" --size   Size of Cell values");
    System.out.println("Example: IPCUtil --count=1024 --size=1024");
    System.exit(errorCode);
  }
Prints usage and then exits w/ passed <code>errCode</code>
@param errorCode the error code to use to exit the application
hbase-client/src/test/java/org/apache/hadoop/hbase/ipc/TestCellBlockBuilder.java