project
- nice little sample projects that could be run in the core as well as integration tests

All Possible Errors
- invalid lifecycle phase (maybe same as bad CLI param, though you were talking about embedder too)
- <module> specified is not found
- malformed settings
- malformed POM
- local repository not writable
- remote repositories not available
- artifact metadata missing

        if (len <= 0) {
            return 0;
        }
        final long start = fp;

        if (tmp == null) {
            throw new IOException("Bad file descriptor");
        }
        // ensure file is open
        file.open(openFlags, access, SmbFile.ATTR_NORMAL, 0);

        /*
         * Read AndX Request / Response
         */

  @Override
  public String toString() {
    long nanos = elapsedNanos();

    TimeUnit unit = chooseUnit(nanos);
    double value = (double) nanos / NANOSECONDS.convert(1, unit);

    // Too bad this functionality is not exposed as a regular method call
    return Platform.formatCompact4Digits(value) + " " + abbreviate(unit);
  }

  private static TimeUnit chooseUnit(long nanos) {

    }

    @Test
    void decode_invalidStructureSize_throws() {
        Configuration config = Mockito.mock(Configuration.class);
        Smb2CreateResponse resp = new Smb2CreateResponse(config, "bad");

        byte[] header = buildSmb2Header();
        byte[] body = new byte[2 + 2 + 4];
        // Wrong structure size (e.g., 0)
        SMBUtil.writeInt2(0, body, 0);

     *
     * @throws Exception
     */
    protected ArtifactRepository badLocalRepository() throws Exception {
        String path = "target/test-repositories/" + component() + "/bad-local-repository";

        File f = new File(getBasedir(), path);

        f.createNewFile();

        return artifactRepositoryFactory.createArtifactRepository(

				"X-Amz-Credential": []string{fmt.Sprintf(credentialTemplate, "EXAMPLEINVALIDEXAMPL", now.Format(yyyymmdd), globalMinioDefaultRegion)},
			},
			expected: ErrInvalidAccessKeyID,
		},
		// (2) It should fail with a bad signature.
		{
			form: http.Header{
				"X-Amz-Credential": []string{fmt.Sprintf(credentialTemplate, accessKey, now.Format(yyyymmdd), globalMinioDefaultRegion)},
				"X-Amz-Date":       []string{now.Format(iso8601Format)},

        } catch (DependencyResolutionException e) {
            result = e.getResult();

            /*
             * MNG-2277, the check below compensates for our bad plugin support where we ended up with aggregator
             * plugins that require dependency resolution, although they usually run in phases of the build where project

      dest[4] = upperHexDigits[0x8 | (cp & 0x3)];
      cp >>>= 2;
      dest[2] = upperHexDigits[cp & 0x7];
      return dest;
    } else {
      // If this ever happens it is due to bug in UnicodeEscaper, not bad input.
      throw new IllegalArgumentException("Invalid unicode character value " + cp);
    }
  }

        try {
            URL url = new URL(originalRepository.getUrl());
            return !(isLocal(url.getHost()) || url.getProtocol().equals("file"));
        } catch (MalformedURLException e) {
            // bad url just skip it here. It should have been validated already, but the wagon lookup will deal with it
            return false;
        }
    }

    private static boolean isLocal(String host) {

    public void writeDirect(final byte[] b, int off, int len, final int flags) throws IOException {
        if (len <= 0) {
            return;
        }

        if (tmp == null) {
            throw new IOException("Bad file descriptor");
        }
        ensureOpen();

        if (LogStream.level >= 4) {
            SmbFile.log.println("write: fid=" + file.fid + ",off=" + off + ",len=" + len);
        }

        int w;