#### Per-Connection Locks

Each connection has its own lock. The connections in the pool are all in a `ConcurrentLinkedQueue`. Due to data races, iterators of this queue may return removed connections. Callers must check the connection's `noNewExchanges` property before using connections from the pool.

The connection lock is never held while doing I/O (even closing a socket) to prevent contention.

if ! command -v xargs >/dev/null 2>&1
then
    die "xargs is not available"
fi

# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
#   set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we

        return ComponentUtil.getPluginHelper().getArtifact(values[0], values[1]);
    }

    /**
     * Installs the specified artifact in a background thread.
     * Also removes any previously installed versions of the same plugin.
     *
     * @param artifact the artifact to install
     */
    public static void installArtifact(final Artifact artifact) {
        new Thread(() -> {

        return context != null ? context.getCurrentHash() : null;
    }

    /**
     * Finalizes and removes the preauth integrity context for a session.
     *
     * @param sessionId the session identifier
     */
    public void finalizeSession(String sessionId) {
        PreauthIntegrityContext context = sessionContexts.remove(sessionId);
        if (context != null) {
            context.invalidate();

    assertThrows(UnsupportedOperationException.class, () -> reverse.remove(4));
  }

  void ensureNotDirectlyModifiable(SortedSet<Integer> unmod) {
    try {
      unmod.add(4);
      fail("UnsupportedOperationException expected");
    } catch (UnsupportedOperationException expected) {
    }
    try {
      unmod.remove(4);
      fail("UnsupportedOperationException expected");

* 📝 Update docs, remove references to removed `pydantic.Required` in `docs/en/docs/tutorial/query-params-str-validations.md`. PR [#10469](https://github.com/tiangolo/fastapi/pull/10469) by [@yogabonito](https://github.com/yogabonito).
* ✏️ Fix typo in `docs/en/docs/reference/index.md`. PR [#10467](https://github.com/tiangolo/fastapi/pull/10467) by [@tarsil](https://github.com/tarsil).

FastAPI will still be able to override it.

///

Then you can reset your overrides (remove them) by setting `app.dependency_overrides` to be an empty `dict`:

```Python
app.dependency_overrides = {}
```

/// tip

	exit 2
fi

forceflag=""
if [ "$1" = "-force" ]; then
	forceflag=-force
	shift
fi

targ="../../go-${GOOS}-${GOARCH}-bootstrap"
if [ -e $targ ]; then
	echo "$targ already exists; remove before continuing"
	exit 2
fi

unset GOROOT
src=$(cd .. && pwd)
echo "#### Copying to $targ"
cp -Rp "$src" "$targ"
cd "$targ"
echo
echo "#### Cleaning $targ"
chmod -R +w .
rm -f .gitignore

    }
  }

  /**
   * Precondition tester for {@code Iterator.remove()} that throws an exception with a consistent
   * error message.
   */
  static void checkRemove(boolean canRemove) {
    checkState(canRemove, "no calls to next() since the last call to remove()");
  }

  private CollectPreconditions() {}

        assertArgumentNotNull("enumeration", enumeration);
        this.enumeration = enumeration;
    }

    @Override
    public void remove() {
        throw new ClUnsupportedOperationException("remove");
    }

    @Override
    public boolean hasNext() {
        return enumeration.hasMoreElements();
    }

    @Override
    public T next() {