static char[] charBufferFromThreadLocal() {
    // ThreadLocal is not available to GWT, so we always reuse the same
    // instance.  It is always safe to return the same instance because
    // javascript is single-threaded, and only used by blocks that doesn't
    // involve async callbacks.
    return CHAR_BUFFER;
  }

  private Platform() {}

 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

// we do not want any of these dependencies on the compilation classpath
// because they could then be used within Elasticsearch
List<String> FORBIDDEN_DEPENDENCIES = [
  'guava'
]

Closure checkDeps = { Configuration configuration ->
  configuration.resolutionStrategy.eachDependency {

# checks for cross-file issues like bad includes or missing BUILD definitions.
#
# We can't test on the windows toolchains because they're using a legacy
# toolchain format (or something) that specifies the toolchain directly instead
# of as a "repository". They can't be valid on Linux because Linux can't do
# anything with a Windows-only toolchain, and bazel errors if trying to build
# that directory.

                    } else {
                        logger.debug("Skipping step {} because a dependency has failed", step);
                    }
                } else {
                    // Skip because predecessors failed or were skipped
                    logger.debug(
                            "Skipping step {} because one or more predecessors did not execute successfully", step);
                }

      if (!compareAndSet(currentThread, DONE)) {
        waitForInterrupt(currentThread);
      }
      if (run) {
        if (error == null) {
          // The cast is safe because of the `run` and `error` checks.
          afterRanInterruptiblySuccess(uncheckedCastNullableTToT(result));
        } else {
          afterRanInterruptiblyFailure(error);
        }
      }
    }
  }

   *
   * <ul>
   *   <li>Any {@link ExecutionException} has its <i>cause</i> wrapped in an {@code X} if the cause
   *       is a checked exception, an {@link UncheckedExecutionException} if the cause is a {@code
   *       RuntimeException}, or an {@link ExecutionError} if the cause is an {@code Error}.
   *   <li>Any {@link InterruptedException} is wrapped in an {@code X} (after restoring the

            }
            OutputStream output = execSpec.getStandardOutput();
            // output from vagrant needs to be manually curated because --machine-readable isn't actually "readable"
            OutputStream progressStream = new ProgressOutputStream(vagrantSpec.command, progressHandler);
            execSpec.setStandardOutput(new TeeOutputStream(output, progressStream));

Make sure you create a [virtual environment](../virtual-environments.md), activate it, and then install it, for example:

```console
$ pip install python-multipart
```

This is because uploaded files are sent as "form data".

///

## Import `File` { #import-file }

Import `File` and `UploadFile` from `fastapi`:

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[3] *}

    public T get() {
      // Because Supplier is read-heavy, we use the "double-checked locking" pattern.
      if (delegate != null) {
        synchronized (lock) {
          if (delegate != null) {
            T t = delegate.get();
            value = t;
            delegate = null;
            return t;
          }
        }
      }
      // This is safe because we checked `delegate`.

import org.gradle.work.DisableCachingByDefault;

import javax.inject.Inject;
import java.util.Arrays;

/**
 * Serves the given directory with a simple HTTP server.
 */
@DisableCachingByDefault(because = "This task starts a HTTP server and should not be cached.")
public abstract class ServeDocs extends DefaultTask {
    @InputFiles
    @PathSensitive(PathSensitivity.RELATIVE)