maven-resolver-supplier-mvn3/src/main/java/org/eclipse/aether/supplier/RepositorySystemSupplier.java [1001:1029]:
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    private VersionResolver versionResolver;

    public final VersionResolver getVersionResolver() {
        checkClosed();
        if (versionResolver == null) {
            versionResolver = createVersionResolver();
        }
        return versionResolver;
    }

    protected VersionResolver createVersionResolver() {
        // from maven-resolver-provider
        return new DefaultVersionResolver(
                getMetadataResolver(), getSyncContextFactory(), getRepositoryEventDispatcher());
    }

    private VersionRangeResolver versionRangeResolver;

    public final VersionRangeResolver getVersionRangeResolver() {
        checkClosed();
        if (versionRangeResolver == null) {
            versionRangeResolver = createVersionRangeResolver();
        }
        return versionRangeResolver;
    }

    protected VersionRangeResolver createVersionRangeResolver() {
        // from maven-resolver-provider
        return new DefaultVersionRangeResolver(
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maven-resolver-supplier-mvn4/src/main/java/org/eclipse/aether/supplier/RepositorySystemSupplier.java [1026:1054]:
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    private VersionResolver versionResolver;

    public final VersionResolver getVersionResolver() {
        checkClosed();
        if (versionResolver == null) {
            versionResolver = createVersionResolver();
        }
        return versionResolver;
    }

    protected VersionResolver createVersionResolver() {
        // from maven-resolver-provider
        return new DefaultVersionResolver(
                getMetadataResolver(), getSyncContextFactory(), getRepositoryEventDispatcher());
    }

    private VersionRangeResolver versionRangeResolver;

    public final VersionRangeResolver getVersionRangeResolver() {
        checkClosed();
        if (versionRangeResolver == null) {
            versionRangeResolver = createVersionRangeResolver();
        }
        return versionRangeResolver;
    }

    protected VersionRangeResolver createVersionRangeResolver() {
        // from maven-resolver-provider
        return new DefaultVersionRangeResolver(
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