diff --git a/src/main/java/org/takes/facets/auth/Token.java b/src/main/java/org/takes/facets/auth/Token.java
index abc7c3e4f..52f430b93 100644
--- a/src/main/java/org/takes/facets/auth/Token.java
+++ b/src/main/java/org/takes/facets/auth/Token.java
@@ -52,9 +52,8 @@ public interface Token {
      * Base64 encoded JSON output.
      *
      * @return The Token in JSON notation, Base64-encoded.
-     * @throws IOException If encoding fails
      */
-    byte[] encoded() throws IOException;
+    byte[] encoded();
 
     /**
      * JSON Object Signing and Encryption Header.
@@ -93,7 +92,7 @@ public JsonObject json() {
         }
 
         @Override
-        public byte[] encoded() throws IOException {
+        public byte[] encoded() {
             return Base64.getEncoder().encode(
                 this.joseo.toString().getBytes(Charset.defaultCharset())
             );
@@ -167,7 +166,7 @@ public JsonObject json() {
         }
 
         @Override
-        public byte[] encoded() throws IOException {
+        public byte[] encoded() {
             return Base64.getEncoder().encode(
                 this.jwto.toString().getBytes(Charset.defaultCharset())
             );
diff --git a/src/main/java/org/takes/facets/auth/codecs/CcCompact.java b/src/main/java/org/takes/facets/auth/codecs/CcCompact.java
index 1fc34a99f..2398c5211 100644
--- a/src/main/java/org/takes/facets/auth/codecs/CcCompact.java
+++ b/src/main/java/org/takes/facets/auth/codecs/CcCompact.java
@@ -44,7 +44,7 @@
 public final class CcCompact implements Codec {
 
     @Override
-    public byte[] encode(final Identity identity) throws IOException {
+    public byte[] encode(final Identity identity) {
         final ByteArrayOutputStream data = new ByteArrayOutputStream();
         try (DataOutputStream stream = new DataOutputStream(data)) {
             stream.writeUTF(identity.urn());
@@ -60,7 +60,7 @@ public byte[] encode(final Identity identity) throws IOException {
     }
 
     @Override
-    public Identity decode(final byte[] bytes) throws IOException {
+    public Identity decode(final byte[] bytes) {
         final Map<String, String> map = new HashMap<>(0);
         try (DataInputStream stream = new DataInputStream(
             new ByteArrayInputStream(bytes)
diff --git a/src/main/java/org/takes/facets/fork/FkHitRefresh.java b/src/main/java/org/takes/facets/fork/FkHitRefresh.java
index 8bc4963a4..3f66dcb74 100644
--- a/src/main/java/org/takes/facets/fork/FkHitRefresh.java
+++ b/src/main/java/org/takes/facets/fork/FkHitRefresh.java
@@ -215,9 +215,8 @@ public void touch() throws IOException {
         /**
          * Expired?
          * @return TRUE if expired
-         * @throws IOException If fails
          */
-        private boolean expired() throws IOException {
+        private boolean expired() {
             final boolean expired;
             if (this.flag.isEmpty()) {
                 expired = true;
diff --git a/src/main/java/org/takes/rq/RqPrint.java b/src/main/java/org/takes/rq/RqPrint.java
index dd56ded21..6e8b9cdc3 100644
--- a/src/main/java/org/takes/rq/RqPrint.java
+++ b/src/main/java/org/takes/rq/RqPrint.java
@@ -88,9 +88,8 @@ public String print() throws IOException {
     /**
      * Print it all.
      * @param output Output stream
-     * @throws IOException If fails
      */
-    public void print(final OutputStream output) throws IOException {
+    public void print(final OutputStream output) {
         new Unchecked<>(
             new LengthOf(new TeeInput(this.text, new OutputTo(output)))
         ).value();
diff --git a/src/main/java/org/takes/rq/multipart/RqMtFake.java b/src/main/java/org/takes/rq/multipart/RqMtFake.java
index 3717a6897..aacb4eedc 100644
--- a/src/main/java/org/takes/rq/multipart/RqMtFake.java
+++ b/src/main/java/org/takes/rq/multipart/RqMtFake.java
@@ -184,7 +184,7 @@ private FakeBody(final Request... parts) {
         }
 
         @Override
-        public InputStream body() throws IOException {
+        public InputStream body() {
             return new InputStreamOf(this.content::value);
         }
     }
diff --git a/src/main/java/org/takes/rs/RsJson.java b/src/main/java/org/takes/rs/RsJson.java
index 6d5586ed5..4b0536a25 100644
--- a/src/main/java/org/takes/rs/RsJson.java
+++ b/src/main/java/org/takes/rs/RsJson.java
@@ -104,9 +104,8 @@ public interface Source {
         /**
          * Get JSON value.
          * @return JSON
-         * @throws IOException If fails
          */
-        JsonStructure toJson() throws IOException;
+        JsonStructure toJson();
     }
 
 }
diff --git a/src/main/java/org/takes/rs/xe/XeTransform.java b/src/main/java/org/takes/rs/xe/XeTransform.java
index 467417ff8..8ec1b70c8 100644
--- a/src/main/java/org/takes/rs/xe/XeTransform.java
+++ b/src/main/java/org/takes/rs/xe/XeTransform.java
@@ -96,11 +96,7 @@ public boolean hasNext() {
 
             @Override
             public XeSource next() {
-                try {
-                    return XeTransform.this.func.transform(origin.next());
-                } catch (final IOException ex) {
-                    throw new IllegalStateException(ex);
-                }
+                return XeTransform.this.func.transform(origin.next());
             }
 
             @Override
@@ -120,8 +116,7 @@ public interface Func<T> {
          * Transform an object.
          * @param obj Object
          * @return Xembly source
-         * @throws IOException If fails
          */
-        XeSource transform(T obj) throws IOException;
+        XeSource transform(T obj);
     }
 }
diff --git a/src/main/java/org/takes/rs/xe/XeWhen.java b/src/main/java/org/takes/rs/xe/XeWhen.java
index eaec3c778..79d6cfd1c 100644
--- a/src/main/java/org/takes/rs/xe/XeWhen.java
+++ b/src/main/java/org/takes/rs/xe/XeWhen.java
@@ -73,7 +73,7 @@ public Boolean value() {
             source,
             new Scalar<XeSource>() {
                 @Override
-                public XeSource value() throws IOException {
+                public XeSource value() {
                     return XeSource.EMPTY;
                 }
             }
@@ -97,7 +97,7 @@ public XeSource value() {
             },
             new Scalar<XeSource>() {
                 @Override
-                public XeSource value() throws IOException {
+                public XeSource value() {
                     return XeSource.EMPTY;
                 }
             }
diff --git a/src/main/java/org/takes/servlet/HttpServletRequestFake.java b/src/main/java/org/takes/servlet/HttpServletRequestFake.java
index df2a17d11..c5ac444bf 100644
--- a/src/main/java/org/takes/servlet/HttpServletRequestFake.java
+++ b/src/main/java/org/takes/servlet/HttpServletRequestFake.java
@@ -319,7 +319,7 @@ public boolean isRequestedSessionIdFromUrl() {
     @Override
     public boolean authenticate(
         final HttpServletResponse resp
-    ) throws IOException, ServletException {
+    ) {
         throw new UnsupportedOperationException("#authenticate()");
     }
 
@@ -327,31 +327,31 @@ public boolean authenticate(
     public void login(
         final String user,
         final String password
-    ) throws ServletException {
+    ) {
         throw new UnsupportedOperationException("#login()");
     }
 
     @Override
-    public void logout() throws ServletException {
+    public void logout() {
         throw new UnsupportedOperationException("#logout()");
     }
 
     @Override
-    public Collection<Part> getParts() throws IOException, ServletException {
+    public Collection<Part> getParts() {
         throw new UnsupportedOperationException("#getParts()");
     }
 
     @Override
     public Part getPart(
         final String name
-    ) throws IOException, ServletException {
+    ) {
         throw new UnsupportedOperationException("#getPart()");
     }
 
     @Override
     public <T extends HttpUpgradeHandler> T upgrade(
         final Class<T> cls
-    ) throws IOException, ServletException {
+    ) {
         throw new UnsupportedOperationException("#upgrade()");
     }
 
@@ -373,7 +373,7 @@ public String getCharacterEncoding() {
     @Override
     public void setCharacterEncoding(
         final String encoding
-    ) throws UnsupportedEncodingException {
+    ) {
         throw new UnsupportedOperationException("#setCharacterEncoding()");
     }
 
@@ -423,7 +423,7 @@ public String getScheme() {
     }
 
     @Override
-    public BufferedReader getReader() throws IOException {
+    public BufferedReader getReader() {
         throw new UnsupportedOperationException("#getReader()");
     }
 
diff --git a/src/main/java/org/takes/servlet/HttpServletResponseFake.java b/src/main/java/org/takes/servlet/HttpServletResponseFake.java
index d7f06c9a4..b35458665 100644
--- a/src/main/java/org/takes/servlet/HttpServletResponseFake.java
+++ b/src/main/java/org/takes/servlet/HttpServletResponseFake.java
@@ -108,7 +108,7 @@ public void setStatus(final int code) {
     public void sendError(
         final int code,
         final String reason
-    ) throws IOException {
+    ) {
         this.response.set(
             new RsWithStatus(
                 this.response.get(),
@@ -195,12 +195,12 @@ public String encodeRedirectUrl(final String url) {
     }
 
     @Override
-    public void sendError(final int code) throws IOException {
+    public void sendError(final int code) {
         throw new UnsupportedOperationException("#sendError()");
     }
 
     @Override
-    public void sendRedirect(final String location) throws IOException {
+    public void sendRedirect(final String location) {
         throw new UnsupportedOperationException("#sendRedirect()");
     }
 
@@ -261,7 +261,7 @@ public String getContentType() {
     }
 
     @Override
-    public PrintWriter getWriter() throws IOException {
+    public PrintWriter getWriter() {
         throw new UnsupportedOperationException("#getWriter()");
     }
 
@@ -296,7 +296,7 @@ public int getBufferSize() {
     }
 
     @Override
-    public void flushBuffer() throws IOException {
+    public void flushBuffer() {
         throw new UnsupportedOperationException("#flushBuffer()");
     }
 
diff --git a/src/main/java/org/takes/tk/TkRedirect.java b/src/main/java/org/takes/tk/TkRedirect.java
index 1c118195e..a00cbba8f 100644
--- a/src/main/java/org/takes/tk/TkRedirect.java
+++ b/src/main/java/org/takes/tk/TkRedirect.java
@@ -67,7 +67,7 @@ public TkRedirect(final String location, final int code) {
         super(
             new Take() {
                 @Override
-                public Response act(final Request req) throws IOException {
+                public Response act(final Request req) {
                     return new RsRedirect(location, code);
                 }
             }
diff --git a/src/test/java/org/takes/facets/auth/IdentityTest.java b/src/test/java/org/takes/facets/auth/IdentityTest.java
index 39c4acb27..e5705d5e8 100644
--- a/src/test/java/org/takes/facets/auth/IdentityTest.java
+++ b/src/test/java/org/takes/facets/auth/IdentityTest.java
@@ -36,10 +36,9 @@ final class IdentityTest {
 
     /**
      * Identity.ANONYMOUS can be equal to itself.
-     * @throws IOException If some problem inside
      */
     @Test
-    void equalsToItself() throws IOException {
+    void equalsToItself() {
         MatcherAssert.assertThat(
             Identity.ANONYMOUS,
             new IsEqual<>(Identity.ANONYMOUS)
diff --git a/src/test/java/org/takes/facets/auth/PsBasicDefaultTest.java b/src/test/java/org/takes/facets/auth/PsBasicDefaultTest.java
index bc2739181..14c235d36 100644
--- a/src/test/java/org/takes/facets/auth/PsBasicDefaultTest.java
+++ b/src/test/java/org/takes/facets/auth/PsBasicDefaultTest.java
@@ -36,10 +36,9 @@ final class PsBasicDefaultTest {
 
     /**
      * PsBasic.Default can accept a correct login/password pair.
-     * @throws Exception If fails
      */
     @Test
-    void acceptsCorrectLoginPasswordPair() throws Exception {
+    void acceptsCorrectLoginPasswordPair() {
         MatcherAssert.assertThat(
             new PsBasic.Default(
                 new String[]{
@@ -60,10 +59,9 @@ void acceptsCorrectLoginPasswordPair() throws Exception {
     /**
      * PsBasic.Default can handle both <pre>%20</pre> and <pre>+</pre>
      * variants of encoding spaces in constructor parameters.
-     * @throws Exception If fails
      */
     @Test
-    void supportsBothKindsOfSpace() throws Exception {
+    void supportsBothKindsOfSpace() {
         MatcherAssert.assertThat(
             new PsBasic.Default(
                 new String[]{
@@ -94,10 +92,9 @@ void supportsBothKindsOfSpace() throws Exception {
 
     /**
      * PsBasic.Default can be entered by a user with a space in his name.
-     * @throws Exception If fails
      */
     @Test
-    void supportsUsersWithSpacesInTheirNames() throws Exception {
+    void supportsUsersWithSpacesInTheirNames() {
         MatcherAssert.assertThat(
             new PsBasic.Default(
                 new String[]{
@@ -141,10 +138,9 @@ void supportsUrlencodedUrns() throws Exception {
 
     /**
      * PsBasic.Default can reject incorrect password.
-     * @throws Exception If fails
      */
     @Test
-    void rejectsIncorrectPassword() throws Exception {
+    void rejectsIncorrectPassword() {
         MatcherAssert.assertThat(
             new PsBasic.Default(
                 new String[]{
@@ -160,10 +156,9 @@ void rejectsIncorrectPassword() throws Exception {
 
     /**
      * PsBasic.Default can reject a non-existing login.
-     * @throws Exception If fails
      */
     @Test
-    void rejectsIncorrectLogin() throws Exception {
+    void rejectsIncorrectLogin() {
         MatcherAssert.assertThat(
             new PsBasic.Default(
                 new String[]{
diff --git a/src/test/java/org/takes/facets/auth/PsByFlagTest.java b/src/test/java/org/takes/facets/auth/PsByFlagTest.java
index 873cb1b6d..20e978e06 100644
--- a/src/test/java/org/takes/facets/auth/PsByFlagTest.java
+++ b/src/test/java/org/takes/facets/auth/PsByFlagTest.java
@@ -85,10 +85,9 @@ void flagIsFoundUserAuthenticated() throws Exception {
 
     /**
      * PsByFlag wraps response with authenticated user.
-     * @throws IOException If some problem inside
      */
     @Test
-    void exitTest() throws IOException {
+    void exitTest() {
         final Response response = new RsWithStatus(
             new RsWithType(
                 new RsWithBody("<html>This is test response</html>"),
@@ -110,10 +109,9 @@ void exitTest() throws IOException {
 
     /**
      * Checks PsByFlag equals method.
-     * @throws Exception If some problem inside
      */
     @Test
-    void mustEvaluateTrueEqualityTest() throws Exception {
+    void mustEvaluateTrueEqualityTest() {
         final Map<Pattern, Pass> passes = new HashMap<>(1);
         passes.put(Pattern.compile("key"), new PsFake(true));
         new Assertion<>(
diff --git a/src/test/java/org/takes/facets/auth/TokenTest.java b/src/test/java/org/takes/facets/auth/TokenTest.java
index 0486b745d..b8505ff05 100644
--- a/src/test/java/org/takes/facets/auth/TokenTest.java
+++ b/src/test/java/org/takes/facets/auth/TokenTest.java
@@ -43,10 +43,9 @@
 final class TokenTest {
     /**
      * JOSE header has correct algorithm name.
-     * @throws IOException If some problem inside
      */
     @Test
-    void joseAlgorithm() throws IOException {
+    void joseAlgorithm() {
         // @checkstyle MagicNumber (1 line)
         final JsonObject jose = new Token.Jose(256).json();
         MatcherAssert.assertThat(
@@ -75,11 +74,10 @@ void joseEncoded() throws IOException {
 
     /**
      * JWT header exp date is set correctly.
-     * @throws IOException If some problem inside
      * @throws ParseException If date parsing fails
      */
     @Test
-    void jwtExpiration() throws IOException, ParseException {
+    void jwtExpiration() throws ParseException {
         final JsonObject jose = new Token.Jwt(
             (Identity) new Identity.Simple("user"),
             // @checkstyle MagicNumber (1 line)
diff --git a/src/test/java/org/takes/facets/auth/codecs/CcAesTest.java b/src/test/java/org/takes/facets/auth/codecs/CcAesTest.java
index adeff426e..0487a05f1 100644
--- a/src/test/java/org/takes/facets/auth/codecs/CcAesTest.java
+++ b/src/test/java/org/takes/facets/auth/codecs/CcAesTest.java
@@ -140,10 +140,9 @@ void encodesAndDecodes() throws Exception {
 
     /**
      * CcAES can throw the right exception.
-     * @throws Exception any unexpected exception to throw
      */
     @Test
-    void throwsRightWhenBroken() throws Exception {
+    void throwsRightWhenBroken() {
         Assertions.assertThrows(
             DecodingException.class,
             () -> new CcAes(
diff --git a/src/test/java/org/takes/facets/auth/codecs/CcBase64Test.java b/src/test/java/org/takes/facets/auth/codecs/CcBase64Test.java
index bf1bb9329..0a2e7f7e8 100644
--- a/src/test/java/org/takes/facets/auth/codecs/CcBase64Test.java
+++ b/src/test/java/org/takes/facets/auth/codecs/CcBase64Test.java
@@ -134,10 +134,9 @@ void decodesNonBaseSixtyFourAlphabetSymbols() throws IOException {
 
     /**
      * Checks CcBase64 equals method.
-     * @throws Exception If some problem inside
      */
     @Test
-    void mustEvaluateTrueEquality() throws Exception {
+    void mustEvaluateTrueEquality() {
         new Assertion<>(
             "Must evaluate equality of CcBase64 objects",
             new CcBase64(new CcPlain()),
@@ -146,7 +145,7 @@ void mustEvaluateTrueEquality() throws Exception {
     }
 
     @Test
-    void mustEvaluateIdenticalHashCodes() throws Exception {
+    void mustEvaluateIdenticalHashCodes() {
         new Assertion<>(
             "Must evaluate identical hash codes",
             new CcBase64(new CcPlain()).hashCode(),
diff --git a/src/test/java/org/takes/facets/auth/codecs/CcGzipTest.java b/src/test/java/org/takes/facets/auth/codecs/CcGzipTest.java
index a9ddd0c20..9672e0a44 100644
--- a/src/test/java/org/takes/facets/auth/codecs/CcGzipTest.java
+++ b/src/test/java/org/takes/facets/auth/codecs/CcGzipTest.java
@@ -45,13 +45,12 @@ void compressesAndDecompresses() throws Exception {
         final Codec gzip = new CcGzip(
             new Codec() {
                 @Override
-                public byte[] encode(final Identity identity)
-                    throws IOException {
+                public byte[] encode(final Identity identity) {
                     return identity.urn().getBytes();
                 }
 
                 @Override
-                public Identity decode(final byte[] bytes) throws IOException {
+                public Identity decode(final byte[] bytes) {
                     return new Identity.Simple(new String(bytes));
                 }
             }
diff --git a/src/test/java/org/takes/facets/auth/codecs/CcSaltedTest.java b/src/test/java/org/takes/facets/auth/codecs/CcSaltedTest.java
index 38b7057c2..057c497fc 100644
--- a/src/test/java/org/takes/facets/auth/codecs/CcSaltedTest.java
+++ b/src/test/java/org/takes/facets/auth/codecs/CcSaltedTest.java
@@ -72,10 +72,9 @@ void encryptsLargeData() throws IOException {
 
     /**
      * CcSalted can throw when incomplete data.
-     * @throws IOException If some problem inside
      */
     @Test
-    void throwsOnIncompleteData() throws IOException {
+    void throwsOnIncompleteData() {
         Assertions.assertThrows(
             DecodingException.class,
             () -> new CcSalted(new CcPlain()).decode(
@@ -86,10 +85,9 @@ void throwsOnIncompleteData() throws IOException {
 
     /**
      * CcSalted can throw when length of salt is negative.
-     * @throws IOException If some problem inside
      */
     @Test
-    void throwsOnZeroData() throws IOException {
+    void throwsOnZeroData() {
         Assertions.assertThrows(
             DecodingException.class,
             () -> new CcSalted(new CcPlain()).decode(
@@ -100,10 +98,9 @@ void throwsOnZeroData() throws IOException {
 
     /**
      * CcSalted can throw on empty input.
-     * @throws IOException If some problem inside
      */
     @Test
-    void throwsOnEmptyInput() throws IOException {
+    void throwsOnEmptyInput() {
         Assertions.assertThrows(
             DecodingException.class,
             () -> new CcSalted(new CcPlain()).decode(new byte[0])
diff --git a/src/test/java/org/takes/facets/auth/signatures/SiHmacTest.java b/src/test/java/org/takes/facets/auth/signatures/SiHmacTest.java
index d540df54a..8abb4a7e0 100644
--- a/src/test/java/org/takes/facets/auth/signatures/SiHmacTest.java
+++ b/src/test/java/org/takes/facets/auth/signatures/SiHmacTest.java
@@ -35,10 +35,9 @@
 @SuppressWarnings("PMD.AvoidDuplicateLiterals") final class SiHmacTest {
     /**
      * SiHmac corrects wrong bit length.
-     * @throws IOException If some problem inside
      */
     @Test
-    void corrects() throws IOException {
+    void corrects() {
         new Assertion<>(
             "Must have proper bit length",
             // @checkstyle MagicNumber (1 line)
@@ -69,10 +68,9 @@ void signs() throws IOException {
 
     /**
      * Checks SiHmac equals method.
-     * @throws Exception If some problem inside
      */
     @Test
-    void mustEvaluateTrueEqualityTest() throws Exception {
+    void mustEvaluateTrueEqualityTest() {
         final String key = "key";
         new Assertion<>(
             "Must evaluate true equality",
diff --git a/src/test/java/org/takes/facets/auth/social/PsGithubTest.java b/src/test/java/org/takes/facets/auth/social/PsGithubTest.java
index f74dc5dff..8cd5a0e4f 100644
--- a/src/test/java/org/takes/facets/auth/social/PsGithubTest.java
+++ b/src/test/java/org/takes/facets/auth/social/PsGithubTest.java
@@ -82,10 +82,9 @@ final class PsGithubTest {
 
     /**
      * PsGithub can fail on no access token.
-     * @throws Exception If some problem inside.
      */
     @Test
-    void failsOnNoAccessToken() throws Exception {
+    void failsOnNoAccessToken() {
         Assertions.assertThrows(
             AssertionError.class,
             () -> this.performLogin(PsGithubTest.directiveWithoutAccessToken())
diff --git a/src/test/java/org/takes/facets/fork/FkContentTypeTest.java b/src/test/java/org/takes/facets/fork/FkContentTypeTest.java
index 5cedd8b12..ff8d04f9a 100644
--- a/src/test/java/org/takes/facets/fork/FkContentTypeTest.java
+++ b/src/test/java/org/takes/facets/fork/FkContentTypeTest.java
@@ -154,10 +154,9 @@ void matchesDifferentEncodingsTypes() throws Exception {
 
     /**
      * Checks FkContentType equals method.
-     * @throws Exception If some problem inside
      */
     @Test
-    void mustEvaluateEqualsTest() throws Exception {
+    void mustEvaluateEqualsTest() {
         final Take take = req -> new RsEmpty();
         final String type = "text/xml";
         new Assertion<>(
@@ -174,7 +173,7 @@ void mustEvaluateEqualsTest() throws Exception {
     private static Take emptyResponse() {
         return new Take() {
             @Override
-            public Response act(final Request req) throws IOException {
+            public Response act(final Request req) {
                 return new RsEmpty();
             }
         };
diff --git a/src/test/java/org/takes/facets/fork/MediaTypeTest.java b/src/test/java/org/takes/facets/fork/MediaTypeTest.java
index 541f12231..604914fad 100644
--- a/src/test/java/org/takes/facets/fork/MediaTypeTest.java
+++ b/src/test/java/org/takes/facets/fork/MediaTypeTest.java
@@ -36,10 +36,9 @@ final class MediaTypeTest {
 
     /**
      * MediaType can match two types.
-     * @throws IOException If some problem inside
      */
     @Test
-    void matchesTwoTypes() throws IOException {
+    void matchesTwoTypes() {
         MatcherAssert.assertThat(
             new MediaType("*/*").matches(new MediaType("application/pdf")),
             Matchers.is(true)
@@ -66,10 +65,9 @@ void matchesTwoTypes() throws IOException {
 
     /**
      * MediaType can match two types.
-     * @throws IOException If some problem inside
      */
     @Test
-    void comparesTwoTypes() throws IOException {
+    void comparesTwoTypes() {
         MatcherAssert.assertThat(
             new MediaType("text/b").compareTo(new MediaType("text/a")),
             Matchers.not(Matchers.equalTo(0))
@@ -78,10 +76,9 @@ void comparesTwoTypes() throws IOException {
 
     /**
      * MediaType can parse invalid types.
-     * @throws IOException If some problem inside
      */
     @Test
-    void parsesInvalidTypes() throws IOException {
+    void parsesInvalidTypes() {
         new MediaType("hello, how are you?");
         new MediaType("////");
         new MediaType("/;/;q=0.9");
diff --git a/src/test/java/org/takes/facets/fork/MediaTypesTest.java b/src/test/java/org/takes/facets/fork/MediaTypesTest.java
index dcf608761..5011b42c0 100644
--- a/src/test/java/org/takes/facets/fork/MediaTypesTest.java
+++ b/src/test/java/org/takes/facets/fork/MediaTypesTest.java
@@ -36,10 +36,9 @@ final class MediaTypesTest {
 
     /**
      * MediaTypes can match two lists.
-     * @throws IOException If some problem inside
      */
     @Test
-    void matchesTwoTypes() throws IOException {
+    void matchesTwoTypes() {
         MatcherAssert.assertThat(
             new MediaTypes("*/*").contains(
                 new MediaTypes("application/xml")
@@ -74,10 +73,9 @@ void matchesTwoTypes() throws IOException {
 
     /**
      * MediaTypes can match two composite lists.
-     * @throws IOException If some problem inside
      */
     @Test
-    void matchesTwoCompositeTypes() throws IOException {
+    void matchesTwoCompositeTypes() {
         MatcherAssert.assertThat(
             new MediaTypes("text/xml,text/json").contains(
                 new MediaTypes("text/json")
@@ -94,10 +92,9 @@ void matchesTwoCompositeTypes() throws IOException {
 
     /**
      * MediaTypes can parse invalid types.
-     * @throws IOException If some problem inside
      */
     @Test
-    void parsesInvalidTypes() throws IOException {
+    void parsesInvalidTypes() {
         new MediaTypes("hello, how are you?");
         new MediaTypes("////");
         new MediaTypes("/;/;q=0.9");
diff --git a/src/test/java/org/takes/facets/fork/RqRegexTest.java b/src/test/java/org/takes/facets/fork/RqRegexTest.java
index 9aca8c074..111f20575 100644
--- a/src/test/java/org/takes/facets/fork/RqRegexTest.java
+++ b/src/test/java/org/takes/facets/fork/RqRegexTest.java
@@ -36,10 +36,9 @@ final class RqRegexTest {
 
     /**
      * RqRegex can match a string.
-     * @throws IOException If some problem inside
      */
     @Test
-    void matchesString() throws IOException {
+    void matchesString() {
         MatcherAssert.assertThat(
             new RqRegex.Fake("/([a-z\\.]+)", "/hello.txt").matcher().group(1),
             Matchers.equalTo("hello.txt")
diff --git a/src/test/java/org/takes/facets/hamcrest/HmHeaderTest.java b/src/test/java/org/takes/facets/hamcrest/HmHeaderTest.java
index e13da27b0..6b354bc7a 100644
--- a/src/test/java/org/takes/facets/hamcrest/HmHeaderTest.java
+++ b/src/test/java/org/takes/facets/hamcrest/HmHeaderTest.java
@@ -41,10 +41,9 @@ final class HmHeaderTest {
 
     /**
      * HmRqHeader can test whether a header is available.
-     * @throws Exception If some problem inside
      */
     @Test
-    void testsHeaderAvailable() throws Exception {
+    void testsHeaderAvailable() {
         MatcherAssert.assertThat(
             new RqFake(
                 Arrays.asList(
@@ -63,10 +62,9 @@ void testsHeaderAvailable() throws Exception {
 
     /**
      * HmRqHeader can test whether a header value is not available.
-     * @throws Exception If some problem inside
      */
     @Test
-    void testsHeaderValueNotAvailable() throws Exception {
+    void testsHeaderValueNotAvailable() {
         MatcherAssert.assertThat(
             new RqFake(
                 Arrays.asList(
@@ -86,10 +84,9 @@ void testsHeaderValueNotAvailable() throws Exception {
 
     /**
      * HmRqHeader can test whether header name and value are available.
-     * @throws Exception If some problem inside
      */
     @Test
-    void testsHeaderNameAndValueAvailable() throws Exception {
+    void testsHeaderNameAndValueAvailable() {
         MatcherAssert.assertThat(
             new RqWithHeader(new RqFake(), "header1: value1"),
             new HmHeader<>(
@@ -101,10 +98,9 @@ void testsHeaderNameAndValueAvailable() throws Exception {
     /**
      * HmRqHeader can test whether header name is available
      * and value is not available.
-     * @throws Exception If some problem inside
      */
     @Test
-    void testsValueNotAvailable() throws Exception {
+    void testsValueNotAvailable() {
         MatcherAssert.assertThat(
             new RqWithHeader(new RqFake(), "header2: value2"),
             Matchers.not(
@@ -117,10 +113,9 @@ void testsValueNotAvailable() throws Exception {
 
     /**
      * HmRqHeader can test whether multiple headers are available.
-     * @throws Exception If some problem inside
      */
     @Test
-    void testsMultipleHeadersAvailable() throws Exception {
+    void testsMultipleHeadersAvailable() {
         MatcherAssert.assertThat(
             new RqWithHeaders(
                 new RqFake(),
@@ -134,10 +129,9 @@ void testsMultipleHeadersAvailable() throws Exception {
 
     /**
      * HmRqHeader can test whether a header is not available.
-     * @throws Exception If some problem inside
      */
     @Test
-    void testsHeaderNotAvailable() throws Exception {
+    void testsHeaderNotAvailable() {
         MatcherAssert.assertThat(
             new RqWithHeaders(new RqFake(), "header4: value4"),
             new HmHeader<>(
diff --git a/src/test/java/org/takes/facets/hamcrest/HmTextBodyTest.java b/src/test/java/org/takes/facets/hamcrest/HmTextBodyTest.java
index b5ea2a164..dc64573e5 100644
--- a/src/test/java/org/takes/facets/hamcrest/HmTextBodyTest.java
+++ b/src/test/java/org/takes/facets/hamcrest/HmTextBodyTest.java
@@ -95,7 +95,7 @@ private final class HmTextBodyFake extends AbstractHmTextBody<Text> {
         }
 
         @Override
-        public InputStream itemBody(final Text item) throws IOException {
+        public InputStream itemBody(final Text item) {
             return new InputStreamOf(item);
         }
     }
diff --git a/src/test/java/org/takes/http/OptionsTest.java b/src/test/java/org/takes/http/OptionsTest.java
index 0fcb75d90..9cee2b567 100644
--- a/src/test/java/org/takes/http/OptionsTest.java
+++ b/src/test/java/org/takes/http/OptionsTest.java
@@ -35,10 +35,9 @@ final class OptionsTest {
 
     /**
      * Options can parse command line arguments.
-     * @throws Exception If some problem inside
      */
     @Test
-    void understandsCommandLineArgs() throws Exception {
+    void understandsCommandLineArgs() {
         final Options opts = new Options(
             "--hit-refresh --threads=2".split(" ")
         );
diff --git a/src/test/java/org/takes/rq/RqSocketTest.java b/src/test/java/org/takes/rq/RqSocketTest.java
index fca48b5e8..bd9833d72 100644
--- a/src/test/java/org/takes/rq/RqSocketTest.java
+++ b/src/test/java/org/takes/rq/RqSocketTest.java
@@ -209,10 +209,9 @@ void returnNotFoundLocalPort() {
 
     /**
      * Checks RqSocket equals method.
-     * @throws Exception If some problem inside
      */
     @Test
-    void mustEqualToSameTypeRequest() throws Exception {
+    void mustEqualToSameTypeRequest() {
         final Request request = new RqWithHeader(
             new RqFake(), "X-Takes-LocalPort: 55555"
         );
diff --git a/src/test/java/org/takes/rq/RqWithHeadersTest.java b/src/test/java/org/takes/rq/RqWithHeadersTest.java
index 1cbdba156..abff069d1 100644
--- a/src/test/java/org/takes/rq/RqWithHeadersTest.java
+++ b/src/test/java/org/takes/rq/RqWithHeadersTest.java
@@ -73,10 +73,9 @@ void addsHeadersToRequest() throws IOException {
 
     /**
      * Checks RqWithHeaders equals method.
-     * @throws Exception If some problem inside
      */
     @Test
-    void mustEqualTest() throws Exception {
+    void mustEqualTest() {
         final Request request = new RqWithHeader(
             new RqFake(),
             "jsessionid", "abcdefghigklmnop"
diff --git a/src/test/java/org/takes/rs/HeadPrintTest.java b/src/test/java/org/takes/rs/HeadPrintTest.java
index 022a87c62..cf10d0a6d 100644
--- a/src/test/java/org/takes/rs/HeadPrintTest.java
+++ b/src/test/java/org/takes/rs/HeadPrintTest.java
@@ -39,9 +39,8 @@ final class HeadPrintTest {
 
     /**
      * HeadPrint can fail on invalid chars.
-     * @throws IOException If some problem inside
      */
-    void failsOnInvalidHeader() throws IOException {
+    void failsOnInvalidHeader() {
         MatcherAssert.assertThat(
             "Must catch invalid header exception",
             () -> new HeadPrint(
@@ -52,7 +51,7 @@ void failsOnInvalidHeader() throws IOException {
     }
 
     @Test
-    void simple() throws IOException {
+    void simple() {
         MatcherAssert.assertThat(
             "must write head",
             new HeadPrint(
@@ -66,7 +65,7 @@ void simple() throws IOException {
      * RFC 7230 says we shall support dashes in response first line.
      */
     @Test
-    void simpleWithDash() throws IOException {
+    void simpleWithDash() {
         new Assertion<>(
             "must write head with dashes",
             new HeadPrint(
diff --git a/src/test/java/org/takes/rs/RsPrettyJsonTest.java b/src/test/java/org/takes/rs/RsPrettyJsonTest.java
index 460b89972..c7a7d0e72 100644
--- a/src/test/java/org/takes/rs/RsPrettyJsonTest.java
+++ b/src/test/java/org/takes/rs/RsPrettyJsonTest.java
@@ -104,10 +104,9 @@ void reportsCorrectContentLength() throws Exception {
 
     /**
      * RsPrettyJSON can conform to equals.
-     * @throws Exception If some problem inside
      */
     @Test
-    void mustEvaluateTrueEquality() throws Exception {
+    void mustEvaluateTrueEquality() {
         final String body = "{\"person\":{\"name\":\"John\"}}";
         new Assertion<>(
             "Must evaluate true equality",
diff --git a/src/test/java/org/takes/rs/RsPrettyXmlTest.java b/src/test/java/org/takes/rs/RsPrettyXmlTest.java
index d928cc593..c5fed76a8 100644
--- a/src/test/java/org/takes/rs/RsPrettyXmlTest.java
+++ b/src/test/java/org/takes/rs/RsPrettyXmlTest.java
@@ -202,10 +202,9 @@ void reportsCorrectContentLength() throws IOException {
 
     /**
      * RsPrettyXML can conform to equals and hash code contract.
-     * @throws Exception If some problem inside
      */
     @Test
-    void conformsToEqualsTest() throws Exception {
+    void conformsToEqualsTest() {
         final Response response = new RsWithBody("<test> <a>test</a></test>");
         new Assertion<>(
             "Must evaluate true equality",
diff --git a/src/test/java/org/takes/rs/RsRedirectTest.java b/src/test/java/org/takes/rs/RsRedirectTest.java
index d7a781f7d..6ab2205a5 100644
--- a/src/test/java/org/takes/rs/RsRedirectTest.java
+++ b/src/test/java/org/takes/rs/RsRedirectTest.java
@@ -36,10 +36,9 @@ final class RsRedirectTest {
 
     /**
      * RsRedirect can redirect.
-     * @throws IOException If some problem inside
      */
     @Test
-    void redirects() throws IOException {
+    void redirects() {
         MatcherAssert.assertThat(
             new RsPrint(
                 new RsRedirect(
diff --git a/src/test/java/org/takes/rs/RsTextTest.java b/src/test/java/org/takes/rs/RsTextTest.java
index 8d55a497b..0f2010ed2 100644
--- a/src/test/java/org/takes/rs/RsTextTest.java
+++ b/src/test/java/org/takes/rs/RsTextTest.java
@@ -39,10 +39,9 @@ final class RsTextTest {
 
     /**
      * RsText can build a plain text response.
-     * @throws IOException If some problem inside
      */
     @Test
-    void makesPlainTextResponse() throws IOException {
+    void makesPlainTextResponse() {
         final String body = "hello, world!";
         MatcherAssert.assertThat(
             new RsPrint(new RsBuffered(new RsText(body))),
diff --git a/src/test/java/org/takes/rs/RsWithHeaderTest.java b/src/test/java/org/takes/rs/RsWithHeaderTest.java
index 61665cad0..d6235ca38 100644
--- a/src/test/java/org/takes/rs/RsWithHeaderTest.java
+++ b/src/test/java/org/takes/rs/RsWithHeaderTest.java
@@ -38,10 +38,9 @@ final class RsWithHeaderTest {
 
     /**
      * RsWithHeader can add headers.
-     * @throws IOException If some problem inside
      */
     @Test
-    void addsHeadersToResponse() throws IOException {
+    void addsHeadersToResponse() {
         MatcherAssert.assertThat(
             new RsPrint(
                 new RsWithHeader(
diff --git a/src/test/java/org/takes/rs/RsWithHeadersTest.java b/src/test/java/org/takes/rs/RsWithHeadersTest.java
index c943b546a..a4cb3156c 100644
--- a/src/test/java/org/takes/rs/RsWithHeadersTest.java
+++ b/src/test/java/org/takes/rs/RsWithHeadersTest.java
@@ -37,10 +37,9 @@ final class RsWithHeadersTest {
 
     /**
      * RsWithHeaders can add headers.
-     * @throws IOException If some problem inside
      */
     @Test
-    void addsHeadersToResponse() throws IOException {
+    void addsHeadersToResponse() {
         final String host = "Host: www.example.com";
         final String type = "Content-Type: text/xml";
         MatcherAssert.assertThat(
diff --git a/src/test/java/org/takes/rs/RsWithTypeTest.java b/src/test/java/org/takes/rs/RsWithTypeTest.java
index 5ba3d214e..961e9cbe4 100644
--- a/src/test/java/org/takes/rs/RsWithTypeTest.java
+++ b/src/test/java/org/takes/rs/RsWithTypeTest.java
@@ -80,10 +80,9 @@ final class RsWithTypeTest {
 
     /**
      * RsWithType can replace an existing type.
-     * @throws Exception If a problem occurs.
      */
     @Test
-    void replaceTypeToResponse() throws Exception {
+    void replaceTypeToResponse() {
         final String type = RsWithTypeTest.TYPE_TEXT;
         MatcherAssert.assertThat(
             new RsPrint(
@@ -106,10 +105,9 @@ void replaceTypeToResponse() throws Exception {
 
     /**
      * RsWithType does not replace response code.
-     * @throws Exception If a problem occurs.
      */
     @Test
-    void doesNotReplaceResponseCode() throws Exception {
+    void doesNotReplaceResponseCode() {
         final String body = "Error!";
         MatcherAssert.assertThat(
             new RsPrint(
@@ -136,10 +134,9 @@ void doesNotReplaceResponseCode() throws Exception {
 
     /**
      * RsWithType.HTML can replace an existing type with text/html.
-     * @throws Exception If a problem occurs.
      */
     @Test
-    void replacesTypeWithHtml() throws Exception {
+    void replacesTypeWithHtml() {
         MatcherAssert.assertThat(
             new RsPrint(
                 new RsWithType.Html(
@@ -184,10 +181,9 @@ void replacesTypeWithHtml() throws Exception {
 
     /**
      * RsWithType.JSON can replace an existing type with application/json.
-     * @throws Exception If a problem occurs.
      */
     @Test
-    void replacesTypeWithJson() throws Exception {
+    void replacesTypeWithJson() {
         MatcherAssert.assertThat(
             new RsPrint(
                 new RsWithType.Json(
@@ -232,10 +228,9 @@ void replacesTypeWithJson() throws Exception {
 
     /**
      * RsWithType.XML can replace an existing type with text/xml.
-     * @throws Exception If a problem occurs.
      */
     @Test
-    void replacesTypeWithXml() throws Exception {
+    void replacesTypeWithXml() {
         MatcherAssert.assertThat(
             new RsPrint(
                 new RsWithType.Xml(
@@ -279,10 +274,9 @@ void replacesTypeWithXml() throws Exception {
 
     /**
      * RsWithType.Text can replace an existing type with text/plain.
-     * @throws Exception If a problem occurs.
      */
     @Test
-    void replacesTypeWithText() throws Exception {
+    void replacesTypeWithText() {
         MatcherAssert.assertThat(
             new RsPrint(
                 new RsWithType.Text(
@@ -326,10 +320,9 @@ void replacesTypeWithText() throws Exception {
 
     /**
      * RsWithType can add properly the content type to the header.
-     * @throws Exception If a problem occurs.
      */
     @Test
-    void addsContentType() throws Exception {
+    void addsContentType() {
         MatcherAssert.assertThat(
             new RsPrint(
                 new RsWithType(new RsEmpty(), RsWithTypeTest.TYPE_TEXT)
@@ -352,10 +345,9 @@ void addsContentType() throws Exception {
     /**
      * RsWithType can add the charset to the content type when it is explicitly
      * specified.
-     * @throws Exception If a problem occurs.
      */
     @Test
-    void addsCharsetToContentType() throws Exception {
+    void addsCharsetToContentType() {
         MatcherAssert.assertThat(
             new RsPrint(
                 new RsWithType(
diff --git a/src/test/java/org/takes/rs/RsXsltTest.java b/src/test/java/org/takes/rs/RsXsltTest.java
index 2204f6137..e1c531ab4 100644
--- a/src/test/java/org/takes/rs/RsXsltTest.java
+++ b/src/test/java/org/takes/rs/RsXsltTest.java
@@ -92,10 +92,9 @@ void convertsXmlToHtml() throws IOException {
 
     /**
      * RsXSLT can convert XML to plain text.
-     * @throws IOException If some problem inside
      */
     @Test
-    void convertsXmlToPlainText() throws IOException {
+    void convertsXmlToPlainText() {
         final Text xml = new Joined(
             " ",
             "<?xml-stylesheet href='/x.xsl' type='text/xsl'?>",
@@ -122,10 +121,9 @@ void convertsXmlToPlainText() throws IOException {
     /**
      * RsXSLT closes decorated Response body's InputStream when XML conversion
      * is done.
-     * @throws Exception If some problem inside
      */
     @Test
-    void closesDecoratedResponseInputStream() throws Exception {
+    void closesDecoratedResponseInputStream() {
         final Text xml = new Joined(
             " ",
             "<?xml-stylesheet href='/b.xsl' type='text/xsl'?>",
@@ -159,10 +157,9 @@ void closesDecoratedResponseInputStream() throws Exception {
 
     /**
      * RsXSLT can resolve in classpath.
-     * @throws IOException If some problem inside
      */
     @Test
-    void resolvesInClasspath() throws IOException {
+    void resolvesInClasspath() {
         MatcherAssert.assertThat(
             new RsPrint(
                 new RsXslt(
diff --git a/src/test/java/org/takes/rs/xe/XeWhenTest.java b/src/test/java/org/takes/rs/xe/XeWhenTest.java
index b253937e9..66130c1c5 100644
--- a/src/test/java/org/takes/rs/xe/XeWhenTest.java
+++ b/src/test/java/org/takes/rs/xe/XeWhenTest.java
@@ -110,13 +110,13 @@ void buildsXmlResponseFromNegativeCondition() throws Exception {
                             false,
                             new Scalar<XeSource>() {
                                 @Override
-                                public XeSource value() throws IOException {
+                                public XeSource value() {
                                     return new XeDate();
                                 }
                             },
                             new Scalar<XeSource>() {
                                 @Override
-                                public XeSource value() throws IOException {
+                                public XeSource value() {
                                     return new XeMemory();
                                 }
                             })
diff --git a/src/test/java/org/takes/servlet/SrvTakeTest.java b/src/test/java/org/takes/servlet/SrvTakeTest.java
index fd4def9c1..70ade4d1c 100644
--- a/src/test/java/org/takes/servlet/SrvTakeTest.java
+++ b/src/test/java/org/takes/servlet/SrvTakeTest.java
@@ -101,7 +101,7 @@ final class TkApp implements Take {
         }
 
         @Override
-        public Response act(final Request req) throws IOException {
+        public Response act(final Request req) {
             return new RsText(
                 new UncheckedText(
                     new FormattedText(
diff --git a/src/test/java/org/takes/tk/TkReadAlwaysTest.java b/src/test/java/org/takes/tk/TkReadAlwaysTest.java
index 47a677488..c4d09892b 100644
--- a/src/test/java/org/takes/tk/TkReadAlwaysTest.java
+++ b/src/test/java/org/takes/tk/TkReadAlwaysTest.java
@@ -51,7 +51,7 @@ void requestBodyIsIgnored() throws Exception {
         final String expected = "response ok";
         final Take take = new Take() {
             @Override
-            public Response act(final Request req) throws IOException {
+            public Response act(final Request req) {
                 return new RsText(expected);
             }
         };
diff --git a/src/test/java/org/takes/tk/TkSlf4jTest.java b/src/test/java/org/takes/tk/TkSlf4jTest.java
index 6c42bc512..3d5ec3d66 100644
--- a/src/test/java/org/takes/tk/TkSlf4jTest.java
+++ b/src/test/java/org/takes/tk/TkSlf4jTest.java
@@ -71,10 +71,9 @@ void logsRuntimeException() {
 
     /**
      * TkSlf4j can work with {@link TkEmpty}.
-     * @throws Exception If some problem inside
      */
     @Test
-    void logsEmptyMessage() throws Exception {
+    void logsEmptyMessage() {
         final Take take = new TkSlf4j(new TkEmpty());
         Assertions.assertDoesNotThrow(
             () -> take.act(new RqFake())