* from the information that is available at the point the problem occurs and as such merely serves as a best effort
     * to provide information to the user to track the problem back to its origin.
     *
     * @return The identifier of the model from which the problem originated or an empty string if unknown, never
     *         {@code null}.
     */
    String getModelId();

                new PropertiesAsMap(((DefaultProject) project).getProject().getProperties()));
    }

    @Override
    public Optional<Project> getExecutionProject(Project project) {
        // Session keep tracks of the Project per project id,
        // so we cannot use session.getProject(p) for forked projects
        // which are temporary clones
        return Optional.ofNullable(getMavenProject(project).getExecutionProject())

For debugging purposes we also need to keep track of what versions of artifacts are being used so that when we are debugging in the IDE we can find the specific sources for a given version of a library so that the developer can debug the correct version of a library being used for a plugin.

                // ignore
            }
        }
        cache.clear();
    }

    public void register(MavenProject project, Key key, CacheRecord record) {
        // default cache does not track record usage
    }

    @Override
    public void dispose() {
        flush();
    }

        return CacheUtils.pluginEquals(a, b);
    }

    public void register(MavenProject project, Key key, CacheRecord record) {
        // default cache does not track plugin usage
    }

    public void dispose() {
        flush();
    }

     * creator of the problem, the general expectation is that the hint provides sufficient information to the user to
     * track the problem back to its origin. A concrete example for such a source hint can be the file path or URL from
     * which the settings were read.
     *

            }
            trace = trace.getParent();
        }

        Path trackingDir;
        boolean missing = event.getFile() == null;
        if (missing) {
            // missing artifact - let's track the path anyway
            File dir = event.getSession().getLocalRepository().getBasedir();
            dir = new File(

                // ignore
            }
        }
        cache.clear();
    }

    public void register(MavenProject project, Key key, CacheRecord record) {
        // default cache does not track extension usage
    }

    public void dispose() {
        flush();
    }

    </default>
  </defaults>
  <classes>
    <class java.clone="deep">
      <name>TrackableBase</name>
      <version>1.0.0+</version>
      <description>
        common base class that contains code to track the source for
        this instance (USER|GLOBAL)
      </description>
      <codeSegments>
        <codeSegment>
          <version>1.0.0/1.3.0</version>
          <code>

     * creator of the problem, the general expectation is that the hint provides sufficient information to the user to
     * track the problem back to its origin. A concrete example for such a source hint can be the file path or URL from
     * which the settings were read.
     *