then:
        jsonFile.text == nonExistentAcceptedApiChanges()
    }

    static String existingAcceptedApiChanges() {
        """
            {
                "acceptedApiChanges": [
                    {
                        "type": "org.gradle.api.plugins.quality.Checkstyle",
                        "member": "Method org.gradle.api.plugins.quality.Checkstyle.getInstantiator()",

        instanceScopedPool.appendSystemPath()
    }

    void noViolation(def rule) {
        assert rule.maybeViolation(apiClass) == null
    }

    Map getInitializationParams() {
        return [acceptedApiChanges: [:],
            publicApiPatterns: ['gradlebuild[.]binarycompatibility[.]rules.[^.]+'],
            apiChangesJsonFile: new File(testDir, 'test-api-changes.json').path,
            projectRootDir: testDir.path]
    }

import gradlebuild.EnrichedReportRenderer
import gradlebuild.basics.GradleModuleApiAttribute
import gradlebuild.basics.PublicApi
import gradlebuild.basics.PublicKotlinDslApi
import gradlebuild.binarycompatibility.AcceptedApiChanges
import gradlebuild.binarycompatibility.BinaryCompatibilityHelper
import gradlebuild.binarycompatibility.CleanAcceptedApiChanges
import gradlebuild.binarycompatibility.transforms.ExplodeZipAndFindJars

    void emptyAcceptedApiChanges(File jsonFile) {
        jsonFile.withWriter { fileWriter ->
            def writer = new JsonWriter(fileWriter)
            writer.setIndent("    ")
            new Gson().toJson([acceptedApiChanges: []], Object, writer)
            writer.close()
        }
    }

        }
    }

    private
    fun formatChanges(changes: List<AcceptedApiChange>): String {
        val gson: Gson = GsonBuilder().setPrettyPrinting().create()
        val initialString = gson.toJson(AcceptedApiChanges(changes))
        return adjustIndentation(initialString) + "\n"
    }

    /**
     * It appears there is no way to configure Gson to use 4 spaces instead of 2 for indentation.
     *

                        }

                        BinaryCompatibilityHelper.setupJApiCmpRichReportRules(
                            this,
                            AcceptedApiChanges.parse(listOf("{acceptedApiChanges:[]}")),
                            rootProject.files("$sourceRoots"),
                            "2.0",
                            file("test-api-changes.json"),