* a default value.
   *
   * If this does read a value, it starts with the tag and length, and reads an entire value,
   * including any potential composed values.
   *
   * If there's nothing to read and no default value, this will throw an exception.
   */
  fun fromDer(reader: DerReader): T

  fun fromDer(byteString: ByteString): T {

on:
  pull_request_target:
    types:
      - opened
      - synchronize
      - reopened
      # For label-checker
      - labeled
      - unlabeled

jobs:
  labeler:
    permissions:
      contents: read
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
    - uses: actions/labeler@v5
      if: ${{ github.event.action != 'labeled' && github.event.action != 'unlabeled' }}
    - run: echo "Done adding labels"

/// tip

The next sections are **not necessarily "advanced"**.

And it's possible that for your use case, the solution is in one of them.

///

## Read the Tutorial first

The next sections assume you already read the main [Tutorial - User Guide: Security](../../tutorial/security/index.md){.internal-link target=_blank}.

        CliRequest request = new CliRequest(new String[] {"-T", "5"}, null);

        cli.initialize(request);
        // read .mvn/maven.config
        cli.cli(request);

        assertEquals("5", request.commandLine.getOptionValue(CLIManager.THREADS));
    }

    /**
     * Read .mvn/maven.config with the following definitions:
     * <pre>
     *   -T
     *   3
     *   -Drevision=1.3.0

     * exists and is not marked read-only. By default, resources are
     * considered to be read-only and therefore for <code>smb://</code>,
     * <code>smb://workgroup/</code>, and <code>smb://server/</code> resources
     * will be read-only.
     *
     * @return <code>true</code> if the resource exists is not marked
     *         read-only
     * @throws CIFSException
     */

                                        "type": "array",
                                        "items": {"$ref": "#/components/schemas/Item"},
                                    }
                                }
                            },
                        }
                    },
                    "summary": "Read Items",

  public void testSlice_constrainedRange() throws IOException {
    long size = source.read().length;
    if (size >= 2) {
      ByteSource sliced = source.slice(1, size - 2);
      assertEquals(size - 2, sliced.read().length);
      ByteSource resliced = sliced.slice(0, size - 1);
      assertTrue(sliced.contentEquals(resliced));
    }
  }

      @Override
      public int read(CharBuffer cbuf) throws IOException {
        return reader.read(cbuf);
      }
    };
  }

  private static Reader getChunkedReader(String input, final int chunk) {
    return new FilterReader(new StringReader(input)) {
      @Override
      public int read(char[] cbuf, int off, int len) throws IOException {
        return super.read(cbuf, off, min(chunk, len));
      }
    };

      @Override
      public int read(CharBuffer cbuf) throws IOException {
        return reader.read(cbuf);
      }
    };
  }

  private static Reader getChunkedReader(String input, final int chunk) {
    return new FilterReader(new StringReader(input)) {
      @Override
      public int read(char[] cbuf, int off, int len) throws IOException {
        return super.read(cbuf, off, min(chunk, len));
      }
    };

func FuzzReader(f *testing.F) {
	testdata, err := os.ReadDir("testdata")
	if err != nil {
		f.Fatalf("failed to read testdata directory: %s", err)
	}
	for _, de := range testdata {
		if de.IsDir() {
			continue
		}
		b, err := os.ReadFile(filepath.Join("testdata", de.Name()))
		if err != nil {
			f.Fatalf("failed to read testdata: %s", err)
		}
		f.Add(b)
	}

	f.Fuzz(func(t *testing.T, b []byte) {