}

        List<String> errors = new ArrayList<>();
        pluginValidator.validate(pluginArtifact, pluginDescriptor, errors);

        if (!errors.isEmpty()) {
            throw new InvalidPluginDescriptorException(
                    "Invalid plugin descriptor for " + plugin.getId() + " (" + pluginFile + ")", errors);
        }

        pluginDescriptor.setPluginArtifact(pluginArtifact);

        }

        // reactor failure modes
        if (t instanceof RuntimeException || !(t instanceof Exception)) {
            // fail fast on RuntimeExceptions, Errors and "other" Throwables
            // assume these are system errors and further build is meaningless
            buildContext.getReactorBuildStatus().halt();

isWarnEnabled(); public abstract void warn(CharSequence); public abstract void warn(CharSequence, Throwable); public abstract void warn(Throwable); public abstract boolean isErrorEnabled(); public abstract void error(CharSequence); public abstract void error(CharSequence, Throwable); public abstract void error(Throwable); } org/apache/maven/plugin/logging/SystemStreamLog.class package org.apache.maven.plugin.logging; public synchronized class SystemStreamLog implements Log { public void SystemStreamLog(); public...

    }

    private static String getMessage(Throwable error, String def) {
        if (error == null) {
            return def;
        }
        String msg = error.getMessage();
        if (msg != null && !msg.isEmpty()) {
            return msg;
        }
        return getMessage(error.getCause(), def);
    }

    private ArtifactRepositoryLayout getLayout(String id) {

                } catch (DirectoryNotEmptyException e) {
                    // ignore
                }
            }
        } catch (IOException e) {
            LOGGER.error("Error while cleaning project local repository", e);
        }
    }

    /**
     * Retrieve a stream of the project's artifacts
     */
    private Stream<Artifact> getProjectArtifacts(MavenProject project) {

                }
            } catch (Exception e) {
                // TODO don't catch exception
                throw new ExpressionEvaluationException(
                        "Error evaluating plugin parameter expression: " + expression, e);
            }
        } else if ("reactorProjects".equals(expression)) {
            value = session.getProjects();
        } else if ("project".equals(expression)) {

            plugin.setArtifactId(tok[1]);
            plugin.setVersion(tok[2]);
            goal = tok[3];

            // This won't be valid, but it constructs something easy to read in the error message
            for (int idx = 4; idx < tok.length; idx++) {
                goal += ":" + tok[idx];
            }
        } else if (numTokens == 3) {

     *
     * @param path directory or JAR file to test
     * @param resolve whether the module names are requested. If false, null values may be used instead
     * @throws IOException if an error occurred while reading the JAR file or the module descriptor
     */
    PathModularization(Path path, boolean resolve) throws IOException {
        if (Files.isDirectory(path)) {
            /*

                    try {
                        c = interpolator.interpolate(value, recursionInterceptor);
                    } catch (InterpolationException e) {
                        problems.add(BuilderProblem.Severity.ERROR, ModelProblem.Version.BASE, e.getMessage(), e);
                    }
                    cache.put(value, c);
                }
                return c;
            }
            return value;
        };

 * <ul>
 *   <li>missing metadata</li>
 *   <li>version range violations</li>
 *   <li>version circular dependencies</li>
 *   <li>missing artifacts</li>
 *   <li>network/transfer errors</li>
 *   <li>file system errors: permissions</li>
 * </ul>
 *
 * TODO carlos: all these possible has*Exceptions and get*Exceptions methods make the clients too