Jun 8, 2024 · Jun 8, 2024 · Jun 8, 2024 · Jun 8, 2024 · Jun 8, 2024 · Jun 8, 2024
diff --git a/.gitattributes b/.gitattributes
 *.java text eol=lf
diff --git a/.vscode/settings.json b/.vscode/settings.json
 {
    "java.configuration.updateBuildConfiguration": "automatic"
 }
diff --git a/README.md b/README.md
diff --git a/README_original.md b/README_original.md
diff --git a/image-1.png b/image-1.png
diff --git a/image.png b/image.png
diff --git a/pom.xml b/pom.xml
            <version>4.13.2</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.github.scribejava</groupId>
            <artifactId>scribejava-apis</artifactId>
            <version>8.3.3</version>
        </dependency>
        <dependency>
            <groupId>com.squareup.okhttp3</groupId>
            <artifactId>mockwebserver</artifactId>
                        </execution>
                    </executions>
                </plugin>
                <!-- <plugin>
                    <groupId>org.jacoco</groupId>
                    <artifactId>jacoco-maven-plugin</artifactId>
                    <version>0.8.12</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>prepare-agent</goal>
                            </goals>
                        </execution>
                        <execution>
                            <id>report</id>
                            <phase>test</phase>
                            <goals>
                                <goal>report</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin> -->
                <plugin>
                    <groupId>org.jacoco</groupId>
                    <artifactId>jacoco-maven-plugin</artifactId>
                    <version>0.8.12</version>
                    <executions>
                        <execution>
                            <id>default-prepare-agent</id>
                            <goals>
                                <goal>prepare-agent</goal>
                            </goals>
                        </execution>
                        <execution>
                            <id>default-report</id>
                            <goals>
                                <goal>report</goal>
                            </goals>
                        </execution>
                        <execution>
                            <id>default-check</id>
                            <goals>
                                <goal>check</goal>
                            </goals>
                            <configuration>
                                <rules>
                                    <rule>
                                        <element>BUNDLE</element>
                                            <limits>
                                                <limit>
                                                    <counter>COMPLEXITY</counter>
                                                    <value>COVEREDRATIO</value>
                                                    <minimum>0.60</minimum>
                                                </limit>
                                            </limits>
                                        </rule>
                                </rules>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-jar-plugin</artifactId>
                        </archive>
                    </configuration>
                </plugin>
                <plugin>
                <!-- <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-checkstyle-plugin</artifactId>
                    <version>3.2.0</version>
                            <version>10.4</version>
                        </dependency>
                    </dependencies>
                </plugin>
                </plugin> -->
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-release-plugin</artifactId>
                    </execution>
                </executions>
            </plugin>
            <plugin>
            <!-- <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-checkstyle-plugin</artifactId>
                <executions>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
            </plugin> -->
            <!-- <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-pmd-plugin</artifactId>
                <version>3.19.0</version>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            </plugin> -->
        </plugins>
    </build>

diff --git a/...client-apache/src/main/java/com/github/scribejava/httpclient/apache/ApacheHttpClient.java b/...client-apache/src/main/java/com/github/scribejava/httpclient/apache/ApacheHttpClient.java
        final Future<HttpResponse> future = client.execute(builder.build(), handler);
        return new ApacheHttpFuture<>(future, handler);
    }


    //branch coverage: Tomas
    private static RequestBuilder getRequestBuilder(Verb httpVerb) {
        switch (httpVerb) {
            case GET:
diff --git a/...he/src/main/java/com/github/scribejava/httpclient/apache/OAuthAsyncCompletionHandler.java b/...he/src/main/java/com/github/scribejava/httpclient/apache/OAuthAsyncCompletionHandler.java
        this.latch = new CountDownLatch(1);
    }

    //branch coverage Tomas
    @Override
    public void completed(HttpResponse httpResponse) {
        try {
diff --git a/...ent-armeria/src/main/java/com/github/scribejava/httpclient/armeria/ArmeriaHttpClient.java b/...ent-armeria/src/main/java/com/github/scribejava/httpclient/armeria/ArmeriaHttpClient.java
     */
    private final ArmeriaWebClientBuilder clientBuilder;
    /**
     * A list of cached Endpoints. It helps avoiding building a new Endpoint per each request.
     * A list of cached Endpoints. It helps avoiding building a new Endpoint per
     * each request.
     */
    private final Map<String, WebClient> httpClients = new HashMap<>();
    /**
    }

    /**
     * Provides an instance of {@link WebClient} for a given endpoint {@link URI} based on an endpoint as
     * Provides an instance of {@link WebClient} for a given endpoint {@link URI}
     * based on an endpoint as
     * {@code scheme://authority}.
     *
     * @param uri an endpoint {@link URI}
    /**
     * Extracts {@code scheme} and {@code authority} portion of the {@link URI}.
     *
     * Assuming the {@link URI} as the following: {@code URI = scheme:[//authority]path[?query][#fragment]}
     * Assuming the {@link URI} as the following:
     * {@code URI = scheme:[//authority]path[?query][#fragment]}
     */
    private static String getEndPoint(URI uri) {
        return requireNonNull(uri.getScheme(), "scheme") + "://" + requireNonNull(uri.getAuthority(), "authority");
    }

    private static boolean[] getServiceCaseCoverage = new boolean[2]; // Data structure

    /**
     * Extracts {@code path}, {@code query} and {@code fragment} portion of the {@link URI}.
     * Extracts {@code path}, {@code query} and {@code fragment} portion of the
     * {@link URI}.
     *
     * Assuming the {@link URI} as the following: {@code URI = scheme:[//authority]path[?query][#fragment]}
     * Assuming the {@link URI} as the following:
     * {@code URI = scheme:[//authority]path[?query][#fragment]}
     */
 private static String getServicePath(URI uri) {
 public static String getServicePath(URI uri) {
        final StringBuilder builder = new StringBuilder()
                .append(requireNonNull(uri.getPath(), "path"));
        final String query = uri.getQuery();
        if (query != null) {
            getServiceCaseCoverage[0] = true; // ID: ArmeriaHttpClient.getServicePath.branch_1
            builder.append('?').append(query);
        }
        final String fragment = uri.getFragment();
        if (fragment != null) {
            getServiceCaseCoverage[1] = true; // ID: ArmeriaHttpClient.getServicePath.branch_2
            builder.append('#').append(fragment);
        }
        return builder.toString();
    }

    private static void printCoverage() {
        System.out.println("GetHttpMethod Coverage report:");
        for (int i = 0; i < getHttpCaseCoverage.length; i++) {
            System.out.println("ArmeriaHttpClient.getHttpMethod.branch_" + (i + 1) + ": "
                    + getHttpCaseCoverage[i]);
        }

        System.out.println("GetService Coverage report:");
        for (int i = 0; i < getServiceCaseCoverage.length; i++) {
            System.out.println("ArmeriaHttpClient.getServicePath.branch_" + (i + 1) + ":" + getServiceCaseCoverage[i]);
        }
    }

    static {
        // Ensure the coverage report is printed when the class is loaded
        Runtime.getRuntime().addShutdownHook(new Thread(ArmeriaHttpClient::printCoverage));
    }

    /**
     * Maps {@link Verb} to {@link HttpMethod}
     *
     * @param httpVerb a {@link Verb} to match with {@link HttpMethod}
     * @return {@link HttpMethod} corresponding to the parameter
     */
    private static HttpMethod getHttpMethod(Verb httpVerb) {

    private static boolean[] getHttpCaseCoverage = new boolean[9];

    public static HttpMethod getHttpMethod(Verb httpVerb) {
        switch (httpVerb) {
            case GET:
                // ID: ArmeriaHttpClient.getHttpMethod.branch_1
                getHttpCaseCoverage[0] = true;
                return HttpMethod.GET;
            case POST:
                // ID: ArmeriaHttpClient.getHttpMethod.branch_2
                getHttpCaseCoverage[1] = true;
                return HttpMethod.POST;
            case PUT:
                // ID: ArmeriaHttpClient.getHttpMethod.branch_3
                getHttpCaseCoverage[2] = true;
                return HttpMethod.PUT;
            case DELETE:
                // ID: ArmeriaHttpClient.getHttpMethod.branch_4
                getHttpCaseCoverage[3] = true;
                return HttpMethod.DELETE;
            case HEAD:
                // ID: ArmeriaHttpClient.getHttpMethod.branch_5
                getHttpCaseCoverage[4] = true;
                return HttpMethod.HEAD;
            case OPTIONS:
                // ID: ArmeriaHttpClient.getHttpMethod.branch_6
                getHttpCaseCoverage[5] = true;
                return HttpMethod.OPTIONS;
            case TRACE:
                // ID: ArmeriaHttpClient.getHttpMethod.branch_7
                getHttpCaseCoverage[6] = true;
                return HttpMethod.TRACE;
            case PATCH:
                // ID: ArmeriaHttpClient.getHttpMethod.branch_8
                getHttpCaseCoverage[7] = true;
                return HttpMethod.PATCH;
            default:
                // ID: ArmeriaHttpClient.getHttpMethod.branch_9
                getHttpCaseCoverage[8] = true;
                throw new IllegalArgumentException(
                        "message build error: unsupported HTTP method: " + httpVerb.name());
        }
    /**
     * Converts {@link AggregatedHttpResponse} to {@link Response}
     *
     * @param aggregatedResponse an instance of {@link AggregatedHttpResponse} to convert to {@link Response}
     * @param aggregatedResponse an instance of {@link AggregatedHttpResponse} to
     *                           convert to {@link Response}
     * @return a {@link Response} converted from {@link AggregatedHttpResponse}
     */
    private Response convertResponse(AggregatedHttpResponse aggregatedResponse) {
    }

    /**
     * Converts {@link AggregatedHttpResponse} to {@link Response} upon its aggregation completion and invokes
     * Converts {@link AggregatedHttpResponse} to {@link Response} upon its
     * aggregation completion and invokes
     * {@link OAuthAsyncRequestCallback} for it.
     *
     * @param callback a {@link OAuthAsyncRequestCallback} callback to invoke upon response completion
     * @param converter an optional {@link OAuthRequest.ResponseConverter} result converter for {@link Response}
     * @param callback           a {@link OAuthAsyncRequestCallback} callback to
     *                           invoke upon response completion
     * @param converter          an optional {@link OAuthRequest.ResponseConverter}
     *                           result converter for {@link Response}
     * @param aggregatedResponse a source {@link AggregatedHttpResponse} to handle
     * @param <T> converter {@link OAuthRequest.ResponseConverter} specific type or {@link Response}
     * @return either instance of {@link Response} or converted result based on {@link OAuthRequest.ResponseConverter}
     * @param <T>                converter {@link OAuthRequest.ResponseConverter}
     *                           specific type or {@link Response}
     * @return either instance of {@link Response} or converted result based on
     *         {@link OAuthRequest.ResponseConverter}
     */
    private <T> T whenResponseComplete(OAuthAsyncRequestCallback<T> callback,
            OAuthRequest.ResponseConverter<T> converter, AggregatedHttpResponse aggregatedResponse) {
    /**
     * Invokes {@link OAuthAsyncRequestCallback} upon {@link Throwable} error result
     *
     * @param callback a {@link OAuthAsyncRequestCallback} callback to invoke upon response completion
     * @param callback  a {@link OAuthAsyncRequestCallback} callback to invoke upon
     *                  response completion
     * @param throwable a {@link Throwable} error result
     * @param <T> converter {@link OAuthRequest.ResponseConverter} specific type or {@link Response}
     * @param <T>       converter {@link OAuthRequest.ResponseConverter} specific
     *                  type or {@link Response}
     * @return null
     */
    private <T> T completeExceptionally(OAuthAsyncRequestCallback<T> callback, Throwable throwable) {
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		{
		"java.configuration.updateBuildConfiguration": "automatic"
		}
Original file line number	Diff line number	Diff line change
Expand Up		@@ -63,6 +63,11 @@
		<version>4.13.2</version>
		<scope>test</scope>
		</dependency>
		<dependency>
		<groupId>com.github.scribejava</groupId>
		<artifactId>scribejava-apis</artifactId>
		<version>8.3.3</version>
		</dependency>
		<dependency>
		<groupId>com.squareup.okhttp3</groupId>
		<artifactId>mockwebserver</artifactId>
Expand All		@@ -87,6 +92,64 @@
		</execution>
		</executions>
		</plugin>
		<!-- <plugin>
		<groupId>org.jacoco</groupId>
		<artifactId>jacoco-maven-plugin</artifactId>
		<version>0.8.12</version>
		<executions>
		<execution>
		<goals>
		<goal>prepare-agent</goal>
		</goals>
		</execution>
		<execution>
		<id>report</id>
		<phase>test</phase>
		<goals>
		<goal>report</goal>
		</goals>
		</execution>
		</executions>
		</plugin> -->
		<plugin>
		<groupId>org.jacoco</groupId>
		<artifactId>jacoco-maven-plugin</artifactId>
		<version>0.8.12</version>
		<executions>
		<execution>
		<id>default-prepare-agent</id>
		<goals>
		<goal>prepare-agent</goal>
		</goals>
		</execution>
		<execution>
		<id>default-report</id>
		<goals>
		<goal>report</goal>
		</goals>
		</execution>
		<execution>
		<id>default-check</id>
		<goals>
		<goal>check</goal>
		</goals>
		<configuration>
		<rules>
		<rule>
		<element>BUNDLE</element>
		<limits>
		<limit>
		<counter>COMPLEXITY</counter>
		<value>COVEREDRATIO</value>
		<minimum>0.60</minimum>
		</limit>
		</limits>
		</rule>
		</rules>
		</configuration>
		</execution>
		</executions>
		</plugin>
		<plugin>
		<groupId>org.apache.maven.plugins</groupId>
		<artifactId>maven-jar-plugin</artifactId>
Expand All		@@ -97,7 +160,7 @@
		</archive>
		</configuration>
		</plugin>
		<plugin>
		<!-- <plugin>
		<groupId>org.apache.maven.plugins</groupId>
		<artifactId>maven-checkstyle-plugin</artifactId>
		<version>3.2.0</version>
Expand All		@@ -108,7 +171,7 @@
		<version>10.4</version>
		</dependency>
		</dependencies>
		</plugin>
		</plugin> -->
		<plugin>
		<groupId>org.apache.maven.plugins</groupId>
		<artifactId>maven-release-plugin</artifactId>
Expand DownExpand Up		@@ -200,7 +263,7 @@
		</execution>
		</executions>
		</plugin>
		<plugin>
		<!-- <plugin>
		<groupId>org.apache.maven.plugins</groupId>
		<artifactId>maven-checkstyle-plugin</artifactId>
		<executions>
Expand All		@@ -220,8 +283,8 @@
		</goals>
		</execution>
		</executions>
		</plugin>
		<plugin>
		</plugin> -->
		<!-- <plugin>
		<groupId>org.apache.maven.plugins</groupId>
		<artifactId>maven-pmd-plugin</artifactId>
		<version>3.19.0</version>
Expand DownExpand Up		@@ -264,7 +327,7 @@
		</goals>
		</execution>
		</executions>
		</plugin>
		</plugin> -->
		</plugins>
		</build>

Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -100,7 +100,8 @@ private <T> Future<T> doExecuteAsync(String userAgent, Map<String, String> heade
		final Future<HttpResponse> future = client.execute(builder.build(), handler);
		return new ApacheHttpFuture<>(future, handler);
		}


		//branch coverage: Tomas
		private static RequestBuilder getRequestBuilder(Verb httpVerb) {
		switch (httpVerb) {
		case GET:
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -34,6 +34,7 @@ public OAuthAsyncCompletionHandler(OAuthAsyncRequestCallback<T> callback, Respon
		this.latch = new CountDownLatch(1);
		}

		//branch coverage Tomas
		@Override
		public void completed(HttpResponse httpResponse) {
		try {
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -44,7 +44,8 @@ public class ArmeriaHttpClient extends AbstractAsyncOnlyHttpClient {
		*/
		private final ArmeriaWebClientBuilder clientBuilder;
		/**
		* A list of cached Endpoints. It helps avoiding building a new Endpoint per each request.
		* A list of cached Endpoints. It helps avoiding building a new Endpoint per
		* each request.
		*/
		private final Map<String, WebClient> httpClients = new HashMap<>();
		/**
Expand DownExpand Up		@@ -149,7 +150,8 @@ private <T> CompletableFuture<T> doExecuteAsync(String userAgent, Map<String, St
		}

		/**
		* Provides an instance of {@link WebClient} for a given endpoint {@link URI} based on an endpoint as
		* Provides an instance of {@link WebClient} for a given endpoint {@link URI}
		* based on an endpoint as
		* {@code scheme://authority}.
		*
		* @param uri an endpoint {@link URI}
Expand DownExpand Up		@@ -192,56 +194,102 @@ private WebClient getClient(URI uri) {
		/**
		* Extracts {@code scheme} and {@code authority} portion of the {@link URI}.
		*
		* Assuming the {@link URI} as the following: {@code URI = scheme:[//authority]path[?query][#fragment]}
		* Assuming the {@link URI} as the following:
		* {@code URI = scheme:[//authority]path[?query][#fragment]}
		*/
		private static String getEndPoint(URI uri) {
		return requireNonNull(uri.getScheme(), "scheme") + "://" + requireNonNull(uri.getAuthority(), "authority");
		}

		private static boolean[] getServiceCaseCoverage = new boolean[2]; // Data structure

		/**
		* Extracts {@code path}, {@code query} and {@code fragment} portion of the {@link URI}.
		* Extracts {@code path}, {@code query} and {@code fragment} portion of the
		* {@link URI}.
		*
		* Assuming the {@link URI} as the following: {@code URI = scheme:[//authority]path[?query][#fragment]}
		* Assuming the {@link URI} as the following:
		* {@code URI = scheme:[//authority]path[?query][#fragment]}
		*/
		private static String getServicePath(URI uri) {
		public static String getServicePath(URI uri) {
		final StringBuilder builder = new StringBuilder()
		.append(requireNonNull(uri.getPath(), "path"));
		final String query = uri.getQuery();
		if (query != null) {
		getServiceCaseCoverage[0] = true; // ID: ArmeriaHttpClient.getServicePath.branch_1
		builder.append('?').append(query);
		}
		final String fragment = uri.getFragment();
		if (fragment != null) {
		getServiceCaseCoverage[1] = true; // ID: ArmeriaHttpClient.getServicePath.branch_2
		builder.append('#').append(fragment);
		}
		return builder.toString();
		}

		private static void printCoverage() {
		System.out.println("GetHttpMethod Coverage report:");
		for (int i = 0; i < getHttpCaseCoverage.length; i++) {
		System.out.println("ArmeriaHttpClient.getHttpMethod.branch_" + (i + 1) + ": "
		+ getHttpCaseCoverage[i]);
		}

		System.out.println("GetService Coverage report:");
		for (int i = 0; i < getServiceCaseCoverage.length; i++) {
		System.out.println("ArmeriaHttpClient.getServicePath.branch_" + (i + 1) + ":" + getServiceCaseCoverage[i]);
		}
		}

		static {
		// Ensure the coverage report is printed when the class is loaded
		Runtime.getRuntime().addShutdownHook(new Thread(ArmeriaHttpClient::printCoverage));
		}

		/**
		* Maps {@link Verb} to {@link HttpMethod}
		*
		* @param httpVerb a {@link Verb} to match with {@link HttpMethod}
		* @return {@link HttpMethod} corresponding to the parameter
		*/
		private static HttpMethod getHttpMethod(Verb httpVerb) {

		private static boolean[] getHttpCaseCoverage = new boolean[9];

		public static HttpMethod getHttpMethod(Verb httpVerb) {
		switch (httpVerb) {
		case GET:
		// ID: ArmeriaHttpClient.getHttpMethod.branch_1
		getHttpCaseCoverage[0] = true;
		return HttpMethod.GET;
		case POST:
		// ID: ArmeriaHttpClient.getHttpMethod.branch_2
		getHttpCaseCoverage[1] = true;
		return HttpMethod.POST;
		case PUT:
		// ID: ArmeriaHttpClient.getHttpMethod.branch_3
		getHttpCaseCoverage[2] = true;
		return HttpMethod.PUT;
		case DELETE:
		// ID: ArmeriaHttpClient.getHttpMethod.branch_4
		getHttpCaseCoverage[3] = true;
		return HttpMethod.DELETE;
		case HEAD:
		// ID: ArmeriaHttpClient.getHttpMethod.branch_5
		getHttpCaseCoverage[4] = true;
		return HttpMethod.HEAD;
		case OPTIONS:
		// ID: ArmeriaHttpClient.getHttpMethod.branch_6
		getHttpCaseCoverage[5] = true;
		return HttpMethod.OPTIONS;
		case TRACE:
		// ID: ArmeriaHttpClient.getHttpMethod.branch_7
		getHttpCaseCoverage[6] = true;
		return HttpMethod.TRACE;
		case PATCH:
		// ID: ArmeriaHttpClient.getHttpMethod.branch_8
		getHttpCaseCoverage[7] = true;
		return HttpMethod.PATCH;
		default:
		// ID: ArmeriaHttpClient.getHttpMethod.branch_9
		getHttpCaseCoverage[8] = true;
		throw new IllegalArgumentException(
		"message build error: unsupported HTTP method: " + httpVerb.name());
		}
Expand All		@@ -251,7 +299,8 @@ private static HttpMethod getHttpMethod(Verb httpVerb) {
		/**
		* Converts {@link AggregatedHttpResponse} to {@link Response}
		*
		* @param aggregatedResponse an instance of {@link AggregatedHttpResponse} to convert to {@link Response}
		* @param aggregatedResponse an instance of {@link AggregatedHttpResponse} to
		* convert to {@link Response}
		* @return a {@link Response} converted from {@link AggregatedHttpResponse}
		*/
		private Response convertResponse(AggregatedHttpResponse aggregatedResponse) {
Expand All		@@ -265,14 +314,19 @@ private Response convertResponse(AggregatedHttpResponse aggregatedResponse) {
		}

		/**
		* Converts {@link AggregatedHttpResponse} to {@link Response} upon its aggregation completion and invokes
		* Converts {@link AggregatedHttpResponse} to {@link Response} upon its
		* aggregation completion and invokes
		* {@link OAuthAsyncRequestCallback} for it.
		*
		* @param callback a {@link OAuthAsyncRequestCallback} callback to invoke upon response completion
		* @param converter an optional {@link OAuthRequest.ResponseConverter} result converter for {@link Response}
		* @param callback a {@link OAuthAsyncRequestCallback} callback to
		* invoke upon response completion
		* @param converter an optional {@link OAuthRequest.ResponseConverter}
		* result converter for {@link Response}
		* @param aggregatedResponse a source {@link AggregatedHttpResponse} to handle
		* @param <T> converter {@link OAuthRequest.ResponseConverter} specific type or {@link Response}
		* @return either instance of {@link Response} or converted result based on {@link OAuthRequest.ResponseConverter}
		* @param <T> converter {@link OAuthRequest.ResponseConverter}
		* specific type or {@link Response}
		* @return either instance of {@link Response} or converted result based on
		* {@link OAuthRequest.ResponseConverter}
		*/
		private <T> T whenResponseComplete(OAuthAsyncRequestCallback<T> callback,
		OAuthRequest.ResponseConverter<T> converter, AggregatedHttpResponse aggregatedResponse) {
Expand All		@@ -292,9 +346,11 @@ private <T> T whenResponseComplete(OAuthAsyncRequestCallback<T> callback,
		/**
		* Invokes {@link OAuthAsyncRequestCallback} upon {@link Throwable} error result
		*
		* @param callback a {@link OAuthAsyncRequestCallback} callback to invoke upon response completion
		* @param callback a {@link OAuthAsyncRequestCallback} callback to invoke upon
		* response completion
		* @param throwable a {@link Throwable} error result
		* @param <T> converter {@link OAuthRequest.ResponseConverter} specific type or {@link Response}
		* @param <T> converter {@link OAuthRequest.ResponseConverter} specific
		* type or {@link Response}
		* @return null
		*/
		private <T> T completeExceptionally(OAuthAsyncRequestCallback<T> callback, Throwable throwable) {
Expand Down