/** User's current working directory. */
  USER_DIR("user.dir");

  private final String key;

  StandardSystemProperty(String key) {
    this.key = key;
  }

  /** Returns the key used to look up this system property. */
  public String key() {
    return key;
  }

  /**
   * Returns the current value for this system property by delegating to {@link
   * System#getProperty(String)}.
   *

        <module name="UnusedImports"/>
        <module name="IllegalImport">
            <!--
                We shouldn't use jdk.internal types.

                com.beust and org.testng.collections has classes that look like Guava.
            -->
            <property name="illegalPkgs" value="jdk.internal,com.beust,org.testng.collections"/>
            <!--
                We prefer org.jspecify for nullability annotations.
            -->

///

/// tip

If you want to call `async` functions in your tests apart from sending requests to your FastAPI application (e.g. asynchronous database functions), have a look at the [Async Tests](../advanced/async-tests.md){.internal-link target=_blank} in the advanced tutorial.

///

## Separating tests { #separating-tests }

   |   the version has a special meaning. If you configured in the pom.xml '1.5'
   |   Maven will search for 1.5 and above.
   |
   | * configuration: Additional configuration for this tool.
   |   Look for documentation of the toolchains-aware plugin which configuration elements
   |   can be used.
   |
   | See also https://maven.apache.org/guides/mini/guide-using-toolchains.html
   |
   | General example

            // proceed. Doing this immediately here lets the next task run without waiting for
            // the cancelled task's executor to run the noop AsyncCallable.
            //
            // ---
            //
            // If the CAS fails, the provided callable already started running (or it is about
            // to). Our contract promises:
            //

import static java.lang.Math.min;

import com.google.common.annotations.GwtCompatible;
import java.util.Map;
import org.jspecify.annotations.Nullable;

/**
 * A {@link UnicodeEscaper} that uses an array to quickly look up replacement characters for a given
 * code point. An additional safe range is provided that determines whether code points without
 * specific replacements are to be considered safe and left unescaped or should be escaped in a

 * the beginning, thanks to using different `-source -target` values for compiling our `-jre` and
 * `-android` "flavors.")
 *
 * (We could consider releasing a listenablefuture:1.0.1 someday. But we would want to look into how
 * that affects users, especially users of the Android Gradle Plugin, since the plugin developers
 * put in a special hack for us: https://issuetracker.google.com/issues/131431257)
 */

        if (executionIdx > 0) {
            goal.setLength(executionIdx);
        }

        injectPluginDeclarationFromProject(plugin, project);

        // If there is no version to be found then we need to look in the repository metadata for
        // this plugin and see what's specified as the latest release.
        //
        if (plugin.getVersion() == null) {
            resolvePluginVersion(plugin, session, project);

  - Improvements to Maven configuration.

Guidelines for any code contributions:

1.  Any significant changes should be accompanied by tests. The project already
    has good test coverage, so look at some existing tests if you're unsure how
    to go about it.
2.  All contributions must be licensed Apache 2.0 and all files must have a copy
    of the boilerplate license comment (can be copied from an existing file).

```

That means that the system would look for programs in:

* `/usr/bin`
* `/bin`
* `/usr/sbin`
* `/sbin`

////

//// tab | Windows

```plaintext
C:\Windows\System32
```

That means that the system would look for programs in:

* `C:\Windows\System32`

////

After activating the virtual environment, the `PATH` variable would look something like this: