## 환경 변수를 만들고 사용하기

파이썬 없이도, **셸 (터미널)** 에서 환경 변수를 **생성** 하고 사용할 수 있습니다.

//// tab | Linux, macOS, Windows Bash

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```console
// You could create an env var MY_NAME with
$ export MY_NAME="Wade Wilson"

// Then you could use it with other programs, like
$ echo "Hello $MY_NAME"

Hello Wade Wilson
```

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////

//// tab | Windows PowerShell

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                extractData.putValues("resourceName", new String[] { resourceName });
            }

            return extractData;
        } catch (final IOException e) {
            throw new ExtractException("Could not extract a content.", e);
        } finally {
            FileUtil.deleteInBackground(inputFile);
            FileUtil.deleteInBackground(outputFile);
        }
    }

    /**
     * Gets the relative path for a locally installed artifact.
     * Note that the artifact need not actually exist yet at
     * the returned location, the path merely indicates where
     * the artifact would eventually be stored.
     *
     * @param session The session to use, must not be {@code null}.
     * @param artifact The artifact for which to determine the path, must not be {@code null}.

        }

        @Test
        @DisplayName("Should handle circular reference in root cause")
        void testCircularReferenceInRootCause() {
            // Create a mock exception that could have circular reference
            Exception rootCause = mock(Exception.class);
            when(rootCause.getMessage()).thenReturn("Mocked exception");

     * execute Queue#drainTo is not added *on top* of waiting for the timeout (which could make
     * the timeout arbitrarily inaccurate, given a queue that is slow to drain).
     */
    long deadline = System.nanoTime() + unit.toNanos(timeout);
    int added = 0;
    while (added < numElements) {
      // we could rely solely on #poll, but #drainTo might be more efficient when there are multiple

    //                                                                    ================
    // -----------------------------------------------------
    //                                       Column Property
    //                                       ---------------
    protected final Map<String, PropertyGateway> _epgMap = newHashMap();
    {

# Exceptions - `HTTPException` and `WebSocketException`

These are the exceptions that you can raise to show errors to the client.

When you raise an exception, as would happen with normal Python, the rest of the execution is aborted. This way you can raise these exceptions from anywhere in the code to abort a request and show the error to the client.

You can use:

* `HTTPException`
* `WebSocketException`

import java.util.logging.Level;
import java.util.logging.Logger;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * {@link SourceSinkFactory} implementations.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class SourceSinkFactories {

  private SourceSinkFactories() {}

  public static CharSourceFactory stringCharSourceFactory() {
    return new StringSourceFactory();
  }

      munch();
    }
  }

  private void munch() {
    Java8Compatibility.flip(buffer);
    while (buffer.remaining() >= chunkSize) {
      // we could limit the buffer to ensure process() does not read more than
      // chunkSize number of bytes, but we trust the implementations
      process(buffer);
    }

        Exception exception = assertThrows(Exception.class, () -> {
            new KerberosRelevantAuthData(emptyToken, keys);
        }, "An exception should be thrown for an empty token.");

        // The exception could be PACDecodingException or NullPointerException
        assertTrue(exception instanceof PACDecodingException || exception instanceof NullPointerException,