*/
  static class ExpensiveComputation implements Function<Integer, BigInteger> {
    @Override
    public BigInteger apply(Integer from) {
      BigInteger v = BigInteger.valueOf(from);
      // Math.sin is very slow for values outside 4*pi
      // Need to take absolute value to avoid inverting the value.
      for (double i = 0; i < 100; i += 20) {
        v =
            v.add(
                v.multiply(

    @Secured({ ROLE })
    public HtmlResponse stop(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.DETAILS);
        final String id = form.id;
        validate(form, messages -> {}, () -> asDetailsHtml(id));
        verifyToken(() -> asDetailsHtml(id));
        scheduledJobService.getScheduledJob(id).ifPresent(entity -> {
            try {
                entity.stop();

So, during that time, the computer can go and do some other work, while "slow-file" 📝 finishes.

set FESS_MAX_MEM=1g
)

if NOT "%FESS_HEAP_SIZE%" == "" (
set FESS_MIN_MEM=%FESS_HEAP_SIZE%
set FESS_MAX_MEM=%FESS_HEAP_SIZE%
)

REM min and max heap sizes should be set to the same value to avoid
REM stop-the-world GC pauses during resize, and so that we can lock the
REM heap in memory on startup to prevent any of it from being swapped
REM out.
set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Xms%FESS_MIN_MEM% -Xmx%FESS_MAX_MEM%

                .copy(invokerRequest);
    }

    protected String getContextId(MavenInvokerRequest<MavenOptions> invokerRequest) {
        // TODO: in a moment Maven stop pushing user properties to system properties (and maybe something more)
        // and allow multiple instances per JVM, this may become a pool?
        return "resident";
    }

    @Override

import java.nio.CharBuffer;
import java.util.Arrays;
import java.util.List;

/**
 * Unit tests for {@link LineBuffer} and {@link LineReader}.
 *
 * @author Chris Nokleberg
 */
@AndroidIncompatible // occasionally very slow
public class LineBufferTest extends IoTestCase {

  public void testProcess() throws IOException {
    bufferHelper("");
    bufferHelper("\n", "\n");
    bufferHelper("\r\n", "\r\n");

import java.nio.CharBuffer;
import java.util.Arrays;
import java.util.List;

/**
 * Unit tests for {@link LineBuffer} and {@link LineReader}.
 *
 * @author Chris Nokleberg
 */
@AndroidIncompatible // occasionally very slow
public class LineBufferTest extends IoTestCase {

  public void testProcess() throws IOException {
    bufferHelper("");
    bufferHelper("\n", "\n");
    bufferHelper("\r\n", "\r\n");

    }
  }

  /** Constructor for use by subclasses. */
  protected AbstractIdleService() {}

  /** Start the service. */
  protected abstract void startUp() throws Exception;

  /** Stop the service. */
  protected abstract void shutDown() throws Exception;

  /**
   * Returns the {@link Executor} that will be used to run this service. Subclasses may override

   * map built by MapMaker) no longer has a strong reference to this object, the garbage collector
   * will reclaim it and enqueue the phantom reference. The enqueued reference will trigger the
   * Finalizer to stop.
   *
   * If this library is loaded in the system class loader, FinalizableReferenceQueue can load
   * Finalizer directly with no problems.
   *

#FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Djavax.net.ssl.trustStore=/tech/elastic/config/truststore.jks"
#FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Djavax.net.ssl.trustStorePassword=changeit"

# min and max heap sizes should be set to the same value to avoid
# stop-the-world GC pauses during resize, and so that we can lock the
# heap in memory on startup to prevent any of it from being swapped
# out.
FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Xms${FESS_MIN_MEM}"