Traditionally, if an error occurred, the error message and the possible solution were provided to the console via a single String in the corresponding exception.
That meant possible solutions for Problems could be scattered all over the console output.
To improve the user experience, we introduced a new way to provide suggestions.
The idea is to provide a list of suggestions for a problem in the console output.

            if (files.includes(fileMetadata.file)) {
                result.get(platform).files.push(fileMetadata.file);
            }
        });
    });

    console.log("categorize: ");
    console.log([...result.values()]);
    return result;
}

 * @example {{ readField('jvm', 'files') | nullToEmpty }}
 */
function nullToEmpty(input) {
    let output;
    if (input) {
        output = input;
    } else {
        output = [];
    }
    console.log("nullToEmpty: " + output);
    return output;
}

    buildScanPublished {
        ((failedTasksInBuildLogic as List<*>) + (failedTasksInMainBuild as List<*>)).forEach {
            println("##teamcity[buildProblem description='${buildScanUri}/console-log?task=$it']")
        }
    }
}

fun shouldBeReportedAsTeamCityBuildProblem(task: Task) = task is Checkstyle || task is GenerateReportsTask || task is AbstractCompile || task is CodeNarc

 * 1. Collect cache misses for compilation tasks and publish a `CACHE_MISS` tag for build scan.
 * 2. Collect failed task paths and display a link which points to the corresponding task in the build scan, like `https://ge.gradle.org/s/xxx/console-log?task=yyy`.
 */
abstract class AbstractBuildScanInfoCollectingService : BuildService<AbstractBuildScanInfoCollectingService.Params>, OperationCompletionListener {
    /**

This includes:

- Logging and progress services.
- Problem generation services (aka the "problems API").
- User prompting services.
- Build options infrastructure.
- The console and CLI, as a specific implementation of these services.

The UI architecture module uses the core runtime architecture module. It provides APIs that are used by the other modules and platforms. 

            reports.xml.outputLocation = checkstyle.reportsDir.resolve("${******@****.***}-groovy.xml")
        }
    }
}

codenarc {
    config = configFile("codenarc.xml")
    reportFormat = "console"
}

tasks.withType<CodeNarc>().configureEach {
    if (name.contains("IntegTest")) {
        config = configFile("codenarc-integtests.xml")
    }
}

val SourceSet.allGroovy: SourceDirectorySet

    val groovy = "$groovyGroup:groovy"
    val groovyAnt = "$groovyGroup:groovy-ant"
    val groovyAstbuilder = "$groovyGroup:groovy-astbuilder"
    val groovyConsole = "$groovyGroup:groovy-console"
    val groovyDateUtil = "$groovyGroup:groovy-dateutil"
    val groovyDatetime = "$groovyGroup:groovy-datetime"
    val groovyDoc = "$groovyGroup:groovy-groovydoc"
    val groovyJson = "$groovyGroup:groovy-json"

        summary.filesPercent = Math.round(summary.files.length / totalChangedFiles * 100, 2);
    });

    console.log("computeStatistics: ");
    console.log(summaries)
    return summaries;
}

function metadataFor(fileMetadatas, file) {
    return fileMetadatas.find(fileMetadata => fileMetadata.file == file);
}

            <td>${summary.filesPercent}%</td>
        </tr>`;
    });

    result += `</table>
        </details>
        <automation id="summary_table/summary_table"/>`;

    console.log("summaryTable: " + result);
    return result;
}

function platformsAffected(statistics) {
    // Significance is defined as a platform having more than 10% of the total lines changed