diff --git a/src/test/java/pl/szczepanik/silencio/api/FormatTest.java b/src/test/java/pl/szczepanik/silencio/api/FormatTest.java
index 7f993b0..5bb2798 100644
--- a/src/test/java/pl/szczepanik/silencio/api/FormatTest.java
+++ b/src/test/java/pl/szczepanik/silencio/api/FormatTest.java
@@ -12,7 +12,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class FormatTest extends GenericTest {
+class FormatTest extends GenericTest {
 
     @Test
     void shouldReturnFormatName() {
diff --git a/src/test/java/pl/szczepanik/silencio/converters/BlankTest.java b/src/test/java/pl/szczepanik/silencio/converters/BlankTest.java
index c451d6f..b84565d 100644
--- a/src/test/java/pl/szczepanik/silencio/converters/BlankTest.java
+++ b/src/test/java/pl/szczepanik/silencio/converters/BlankTest.java
@@ -12,7 +12,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class BlankTest extends GenericTest {
+class BlankTest extends GenericTest {
 
     @Test
     void shouldReturnEmptyValue() {
diff --git a/src/test/java/pl/szczepanik/silencio/converters/NumberSequenceConverterTest.java b/src/test/java/pl/szczepanik/silencio/converters/NumberSequenceConverterTest.java
index 95d9b16..3dc9a9f 100644
--- a/src/test/java/pl/szczepanik/silencio/converters/NumberSequenceConverterTest.java
+++ b/src/test/java/pl/szczepanik/silencio/converters/NumberSequenceConverterTest.java
@@ -15,7 +15,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class NumberSequenceConverterTest extends GenericTest {
+class NumberSequenceConverterTest extends GenericTest {
 
     @Test
     void shouldReturnValueWhenPassingNull() {
diff --git a/src/test/java/pl/szczepanik/silencio/converters/StringConverterTest.java b/src/test/java/pl/szczepanik/silencio/converters/StringConverterTest.java
index 74801c1..3797563 100644
--- a/src/test/java/pl/szczepanik/silencio/converters/StringConverterTest.java
+++ b/src/test/java/pl/szczepanik/silencio/converters/StringConverterTest.java
@@ -12,7 +12,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class StringConverterTest extends GenericTest {
+class StringConverterTest extends GenericTest {
 
     @Test
     void shouldReturnEmptyValue() {
diff --git a/src/test/java/pl/szczepanik/silencio/converters/WikipediaConverterTest.java b/src/test/java/pl/szczepanik/silencio/converters/WikipediaConverterTest.java
index 80e7309..f9ddeb9 100644
--- a/src/test/java/pl/szczepanik/silencio/converters/WikipediaConverterTest.java
+++ b/src/test/java/pl/szczepanik/silencio/converters/WikipediaConverterTest.java
@@ -31,7 +31,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class WikipediaConverterTest extends GenericTest {
+class WikipediaConverterTest extends GenericTest {
 
     private static final String URL_ADDRESS = "https://en.m.wikipedia.org/wiki/Special:Random";
     private static final String INVALID_HTML_PAGE = "This does not look like valid HTML page";
diff --git a/src/test/java/pl/szczepanik/silencio/core/AbstractProcessorTest.java b/src/test/java/pl/szczepanik/silencio/core/AbstractProcessorTest.java
index a89c406..b9951f1 100644
--- a/src/test/java/pl/szczepanik/silencio/core/AbstractProcessorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/AbstractProcessorTest.java
@@ -14,7 +14,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class AbstractProcessorTest extends GenericTest {
+class AbstractProcessorTest extends GenericTest {
 
     @Test
     void shouldReturnPassedFormat() {
diff --git a/src/test/java/pl/szczepanik/silencio/core/BuilderTest.java b/src/test/java/pl/szczepanik/silencio/core/BuilderTest.java
index 0ec1811..a61a709 100644
--- a/src/test/java/pl/szczepanik/silencio/core/BuilderTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/BuilderTest.java
@@ -21,7 +21,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class BuilderTest extends GenericTest {
+class BuilderTest extends GenericTest {
 
     @Test
     void shouldHoldPassedFormat() {
diff --git a/src/test/java/pl/szczepanik/silencio/core/BuilderTest_buildTest.java b/src/test/java/pl/szczepanik/silencio/core/BuilderTest_buildTest.java
index 3da6dc7..be6eafa 100644
--- a/src/test/java/pl/szczepanik/silencio/core/BuilderTest_buildTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/BuilderTest_buildTest.java
@@ -17,7 +17,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class BuilderTest_buildTest extends GenericTest {
+class BuilderTest_buildTest extends GenericTest {
 
     public Format format;
 
diff --git a/src/test/java/pl/szczepanik/silencio/core/ConfigurationTest.java b/src/test/java/pl/szczepanik/silencio/core/ConfigurationTest.java
index e0890d0..2447fc4 100644
--- a/src/test/java/pl/szczepanik/silencio/core/ConfigurationTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/ConfigurationTest.java
@@ -11,7 +11,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class ConfigurationTest extends GenericTest {
+class ConfigurationTest extends GenericTest {
 
     @Test
     void shouldReturnPassedExecutions() {
diff --git a/src/test/java/pl/szczepanik/silencio/core/ExecutionTest.java b/src/test/java/pl/szczepanik/silencio/core/ExecutionTest.java
index e1250fb..fdd4c73 100644
--- a/src/test/java/pl/szczepanik/silencio/core/ExecutionTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/ExecutionTest.java
@@ -14,7 +14,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class ExecutionTest extends GenericTest {
+class ExecutionTest extends GenericTest {
 
     @Test
     void shouldReturnPassedValues() {
diff --git a/src/test/java/pl/szczepanik/silencio/core/IntegrityExceptionTest.java b/src/test/java/pl/szczepanik/silencio/core/IntegrityExceptionTest.java
index 8bb8ea8..b87da30 100644
--- a/src/test/java/pl/szczepanik/silencio/core/IntegrityExceptionTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/IntegrityExceptionTest.java
@@ -8,7 +8,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class IntegrityExceptionTest extends GenericTest {
+class IntegrityExceptionTest extends GenericTest {
 
     @Test
     void constructorWithMessageReturnsPassedMessage() {
diff --git a/src/test/java/pl/szczepanik/silencio/core/KeyTest.java b/src/test/java/pl/szczepanik/silencio/core/KeyTest.java
index 8ac3b37..761c67e 100644
--- a/src/test/java/pl/szczepanik/silencio/core/KeyTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/KeyTest.java
@@ -8,7 +8,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class KeyTest extends GenericTest {
+class KeyTest extends GenericTest {
 
     @Test
     void shouldReturnKey() {
diff --git a/src/test/java/pl/szczepanik/silencio/core/ProcessorExceptionTest.java b/src/test/java/pl/szczepanik/silencio/core/ProcessorExceptionTest.java
index d743664..df35538 100644
--- a/src/test/java/pl/szczepanik/silencio/core/ProcessorExceptionTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/ProcessorExceptionTest.java
@@ -8,7 +8,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class ProcessorExceptionTest extends GenericTest {
+class ProcessorExceptionTest extends GenericTest {
 
     @Test
     void constructorWithMessageReturnsPassedMessage() {
diff --git a/src/test/java/pl/szczepanik/silencio/core/ProcessorStateMachineTest.java b/src/test/java/pl/szczepanik/silencio/core/ProcessorStateMachineTest.java
index 4ed6be1..2bdd62d 100644
--- a/src/test/java/pl/szczepanik/silencio/core/ProcessorStateMachineTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/ProcessorStateMachineTest.java
@@ -9,7 +9,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class ProcessorStateMachineTest extends GenericTest {
+class ProcessorStateMachineTest extends GenericTest {
 
     @Test
     void shouldNotAllowToValidateProcessInCreatedState() {
diff --git a/src/test/java/pl/szczepanik/silencio/core/ValueTest.java b/src/test/java/pl/szczepanik/silencio/core/ValueTest.java
index a84b7f7..53868d6 100644
--- a/src/test/java/pl/szczepanik/silencio/core/ValueTest.java
+++ b/src/test/java/pl/szczepanik/silencio/core/ValueTest.java
@@ -8,7 +8,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class ValueTest extends GenericTest {
+class ValueTest extends GenericTest {
 
     @Test
     void shouldReturnValue() {
diff --git a/src/test/java/pl/szczepanik/silencio/decisions/MatcherDecisionTest.java b/src/test/java/pl/szczepanik/silencio/decisions/MatcherDecisionTest.java
index d3ba7c6..ea356db 100644
--- a/src/test/java/pl/szczepanik/silencio/decisions/MatcherDecisionTest.java
+++ b/src/test/java/pl/szczepanik/silencio/decisions/MatcherDecisionTest.java
@@ -11,7 +11,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class MatcherDecisionTest extends GenericTest {
+class MatcherDecisionTest extends GenericTest {
 
     @Test
     void shouldAcceptValuesAsWords() {
diff --git a/src/test/java/pl/szczepanik/silencio/decisions/NegativeDecisionTest.java b/src/test/java/pl/szczepanik/silencio/decisions/NegativeDecisionTest.java
index b527606..3a8250c 100644
--- a/src/test/java/pl/szczepanik/silencio/decisions/NegativeDecisionTest.java
+++ b/src/test/java/pl/szczepanik/silencio/decisions/NegativeDecisionTest.java
@@ -11,7 +11,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class NegativeDecisionTest extends GenericTest {
+class NegativeDecisionTest extends GenericTest {
 
     @Test
     void shouldNotAllowForConversion() {
diff --git a/src/test/java/pl/szczepanik/silencio/decisions/PositiveDecisionTest.java b/src/test/java/pl/szczepanik/silencio/decisions/PositiveDecisionTest.java
index 3962860..d417e57 100644
--- a/src/test/java/pl/szczepanik/silencio/decisions/PositiveDecisionTest.java
+++ b/src/test/java/pl/szczepanik/silencio/decisions/PositiveDecisionTest.java
@@ -11,7 +11,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class PositiveDecisionTest extends GenericTest {
+class PositiveDecisionTest extends GenericTest {
 
     @Test
     void shouldAllowForConversion() {
diff --git a/src/test/java/pl/szczepanik/silencio/diagnostics/BlankCharConverterTest.java b/src/test/java/pl/szczepanik/silencio/diagnostics/BlankCharConverterTest.java
index 1d36dde..eb1ebde 100644
--- a/src/test/java/pl/szczepanik/silencio/diagnostics/BlankCharConverterTest.java
+++ b/src/test/java/pl/szczepanik/silencio/diagnostics/BlankCharConverterTest.java
@@ -8,7 +8,7 @@
 import pl.szczepanik.silencio.core.Key;
 import pl.szczepanik.silencio.core.Value;
 
-public class BlankCharConverterTest extends GenericTest {
+class BlankCharConverterTest extends GenericTest {
 
     @Test
     void shouldReturnConstantValue() {
diff --git a/src/test/java/pl/szczepanik/silencio/diagnostics/ConstantValueConverterTest.java b/src/test/java/pl/szczepanik/silencio/diagnostics/ConstantValueConverterTest.java
index 81668f6..6b6a2cc 100644
--- a/src/test/java/pl/szczepanik/silencio/diagnostics/ConstantValueConverterTest.java
+++ b/src/test/java/pl/szczepanik/silencio/diagnostics/ConstantValueConverterTest.java
@@ -8,7 +8,7 @@
 import pl.szczepanik.silencio.core.Key;
 import pl.szczepanik.silencio.core.Value;
 
-public class ConstantValueConverterTest extends GenericTest {
+class ConstantValueConverterTest extends GenericTest {
 
     @Test
     void shouldReturnConstantValue() {
diff --git a/src/test/java/pl/szczepanik/silencio/diagnostics/KeyValueConverterTest.java b/src/test/java/pl/szczepanik/silencio/diagnostics/KeyValueConverterTest.java
index 2f7d7e4..4e5ce7d 100644
--- a/src/test/java/pl/szczepanik/silencio/diagnostics/KeyValueConverterTest.java
+++ b/src/test/java/pl/szczepanik/silencio/diagnostics/KeyValueConverterTest.java
@@ -8,7 +8,7 @@
 import pl.szczepanik.silencio.core.Key;
 import pl.szczepanik.silencio.core.Value;
 
-public class KeyValueConverterTest extends GenericTest {
+class KeyValueConverterTest extends GenericTest {
 
     @Test
     void shouldReturnCorrectValue() {
diff --git a/src/test/java/pl/szczepanik/silencio/diagnostics/PassedValueConverterTest.java b/src/test/java/pl/szczepanik/silencio/diagnostics/PassedValueConverterTest.java
index d9ee42b..7fabec8 100644
--- a/src/test/java/pl/szczepanik/silencio/diagnostics/PassedValueConverterTest.java
+++ b/src/test/java/pl/szczepanik/silencio/diagnostics/PassedValueConverterTest.java
@@ -8,7 +8,7 @@
 import pl.szczepanik.silencio.core.Key;
 import pl.szczepanik.silencio.core.Value;
 
-public class PassedValueConverterTest extends GenericTest {
+class PassedValueConverterTest extends GenericTest {
 
     @Test
     void shouldReturnCorrectValue() {
diff --git a/src/test/java/pl/szczepanik/silencio/diagnostics/ProcessorSmokeCheckerTest.java b/src/test/java/pl/szczepanik/silencio/diagnostics/ProcessorSmokeCheckerTest.java
index 17cd8c3..1483247 100644
--- a/src/test/java/pl/szczepanik/silencio/diagnostics/ProcessorSmokeCheckerTest.java
+++ b/src/test/java/pl/szczepanik/silencio/diagnostics/ProcessorSmokeCheckerTest.java
@@ -15,7 +15,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class ProcessorSmokeCheckerTest extends GenericTest {
+class ProcessorSmokeCheckerTest extends GenericTest {
 
     @Test
     void shouldPassWithStubProcessor() {
diff --git a/src/test/java/pl/szczepanik/silencio/integration/BlankConverterIntegrationTest.java b/src/test/java/pl/szczepanik/silencio/integration/BlankConverterIntegrationTest.java
index 28c6795..5fc213b 100644
--- a/src/test/java/pl/szczepanik/silencio/integration/BlankConverterIntegrationTest.java
+++ b/src/test/java/pl/szczepanik/silencio/integration/BlankConverterIntegrationTest.java
@@ -15,7 +15,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class BlankConverterIntegrationTest extends GenericTest {
+class BlankConverterIntegrationTest extends GenericTest {
 
     @Test
     void shoulClearValuesWhenBlankIsExecutedAsLast() throws IOException {
diff --git a/src/test/java/pl/szczepanik/silencio/integration/BuilderIntegrationTest.java b/src/test/java/pl/szczepanik/silencio/integration/BuilderIntegrationTest.java
index 3ec305d..4ad2f3b 100644
--- a/src/test/java/pl/szczepanik/silencio/integration/BuilderIntegrationTest.java
+++ b/src/test/java/pl/szczepanik/silencio/integration/BuilderIntegrationTest.java
@@ -18,7 +18,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class BuilderIntegrationTest extends GenericTest {
+class BuilderIntegrationTest extends GenericTest {
 
     @Test
     void shouldProcessPropertiesFile() throws IOException {
diff --git a/src/test/java/pl/szczepanik/silencio/integration/EmptyContentIntegrationTest.java b/src/test/java/pl/szczepanik/silencio/integration/EmptyContentIntegrationTest.java
index c238e35..bd87448 100644
--- a/src/test/java/pl/szczepanik/silencio/integration/EmptyContentIntegrationTest.java
+++ b/src/test/java/pl/szczepanik/silencio/integration/EmptyContentIntegrationTest.java
@@ -17,7 +17,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class EmptyContentIntegrationTest extends GenericTest {
+class EmptyContentIntegrationTest extends GenericTest {
 
     public Format format;
 
diff --git a/src/test/java/pl/szczepanik/silencio/integration/JSONProcessorIntegrationTest.java b/src/test/java/pl/szczepanik/silencio/integration/JSONProcessorIntegrationTest.java
index eb3529e..3ceac4b 100644
--- a/src/test/java/pl/szczepanik/silencio/integration/JSONProcessorIntegrationTest.java
+++ b/src/test/java/pl/szczepanik/silencio/integration/JSONProcessorIntegrationTest.java
@@ -14,7 +14,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class JSONProcessorIntegrationTest extends GenericTest {
+class JSONProcessorIntegrationTest extends GenericTest {
 
     @Test
     void shouldProcessJSONFile() {
diff --git a/src/test/java/pl/szczepanik/silencio/integration/PropertiesProcessorIntegrationTest.java b/src/test/java/pl/szczepanik/silencio/integration/PropertiesProcessorIntegrationTest.java
index c44b1b5..9dafacc 100644
--- a/src/test/java/pl/szczepanik/silencio/integration/PropertiesProcessorIntegrationTest.java
+++ b/src/test/java/pl/szczepanik/silencio/integration/PropertiesProcessorIntegrationTest.java
@@ -16,7 +16,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class PropertiesProcessorIntegrationTest extends GenericTest {
+class PropertiesProcessorIntegrationTest extends GenericTest {
 
     @Test
     void shouldProcessPropertiesFile() throws IOException {
diff --git a/src/test/java/pl/szczepanik/silencio/integration/SuvIntegrationTest.java b/src/test/java/pl/szczepanik/silencio/integration/SuvIntegrationTest.java
index 5dd76bb..0939bc2 100644
--- a/src/test/java/pl/szczepanik/silencio/integration/SuvIntegrationTest.java
+++ b/src/test/java/pl/szczepanik/silencio/integration/SuvIntegrationTest.java
@@ -18,7 +18,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class SuvIntegrationTest extends GenericTest {
+class SuvIntegrationTest extends GenericTest {
 
     public Processor processor;
 
diff --git a/src/test/java/pl/szczepanik/silencio/integration/WikipediaConverterIntegrationTest.java b/src/test/java/pl/szczepanik/silencio/integration/WikipediaConverterIntegrationTest.java
index 5020452..1ebd1ed 100644
--- a/src/test/java/pl/szczepanik/silencio/integration/WikipediaConverterIntegrationTest.java
+++ b/src/test/java/pl/szczepanik/silencio/integration/WikipediaConverterIntegrationTest.java
@@ -16,7 +16,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class WikipediaConverterIntegrationTest extends GenericTest {
+class WikipediaConverterIntegrationTest extends GenericTest {
 
     @Test
     void shouldGetWordsFromWikipedia() {
diff --git a/src/test/java/pl/szczepanik/silencio/integration/XMLProcessorIntegrationTest.java b/src/test/java/pl/szczepanik/silencio/integration/XMLProcessorIntegrationTest.java
index 2e46e24..f9e433e 100644
--- a/src/test/java/pl/szczepanik/silencio/integration/XMLProcessorIntegrationTest.java
+++ b/src/test/java/pl/szczepanik/silencio/integration/XMLProcessorIntegrationTest.java
@@ -14,7 +14,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class XMLProcessorIntegrationTest extends GenericTest {
+class XMLProcessorIntegrationTest extends GenericTest {
 
     @Test
     void shouldProcessXMLFile() {
diff --git a/src/test/java/pl/szczepanik/silencio/mocks/AbstractProcessorCrashOnRealProcess.java b/src/test/java/pl/szczepanik/silencio/mocks/AbstractProcessorCrashOnRealProcess.java
index 5d0771a..ae7c0b9 100644
--- a/src/test/java/pl/szczepanik/silencio/mocks/AbstractProcessorCrashOnRealProcess.java
+++ b/src/test/java/pl/szczepanik/silencio/mocks/AbstractProcessorCrashOnRealProcess.java
@@ -9,7 +9,7 @@
 /**
  * Mock for {@link AbstractProcessor} that crashes when {@link AbstractProcessorCrashOnRealProcess#realProcess()} method
  * is invoked.
- * 
+ *
  * @author Damian Szczepanik (damianszczepanik@github)
  */
 public class AbstractProcessorCrashOnRealProcess extends StubProcessor {
diff --git a/src/test/java/pl/szczepanik/silencio/mocks/ConverterVisitor.java b/src/test/java/pl/szczepanik/silencio/mocks/ConverterVisitor.java
index 18f1690..b350c20 100644
--- a/src/test/java/pl/szczepanik/silencio/mocks/ConverterVisitor.java
+++ b/src/test/java/pl/szczepanik/silencio/mocks/ConverterVisitor.java
@@ -6,7 +6,7 @@
 
 /**
  * Stores key and value passed to this converter.
- * 
+ *
  * @author Damian Szczepanik (damianszczepanik@github)
  */
 public class ConverterVisitor implements Converter {
diff --git a/src/test/java/pl/szczepanik/silencio/mocks/PropertyVisitorHolder.java b/src/test/java/pl/szczepanik/silencio/mocks/PropertyVisitorHolder.java
index cb16693..afd4dee 100644
--- a/src/test/java/pl/szczepanik/silencio/mocks/PropertyVisitorHolder.java
+++ b/src/test/java/pl/szczepanik/silencio/mocks/PropertyVisitorHolder.java
@@ -6,7 +6,7 @@
 
 /**
  * Counts how many {{@link #} {@link #process(Properties)} method has been invoked.
- * 
+ *
  * @author Damian Szczepanik (damianszczepanik@github)
  */
 public class PropertyVisitorHolder extends PropertiesVisitor {
diff --git a/src/test/java/pl/szczepanik/silencio/mocks/WriterCrashOnWrite.java b/src/test/java/pl/szczepanik/silencio/mocks/WriterCrashOnWrite.java
index 40917ee..8f58e14 100644
--- a/src/test/java/pl/szczepanik/silencio/mocks/WriterCrashOnWrite.java
+++ b/src/test/java/pl/szczepanik/silencio/mocks/WriterCrashOnWrite.java
@@ -5,7 +5,7 @@
 
 /**
  * Writer that throws exception when {@link #write(char[], int, int)}} method is invoked.
- * 
+ *
  * @author Damian Szczepanik (damianszczepanik@github)
  */
 public class WriterCrashOnWrite extends Writer {
diff --git a/src/test/java/pl/szczepanik/silencio/processors/JSONParser_isBasicTypeTest.java b/src/test/java/pl/szczepanik/silencio/processors/JSONParser_isBasicTypeTest.java
index 52728eb..09226ae 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/JSONParser_isBasicTypeTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/JSONParser_isBasicTypeTest.java
@@ -17,7 +17,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class JSONParser_isBasicTypeTest extends GenericTest {
+class JSONParser_isBasicTypeTest extends GenericTest {
 
     public Object type;
 
diff --git a/src/test/java/pl/szczepanik/silencio/processors/JSONProcessorTest.java b/src/test/java/pl/szczepanik/silencio/processors/JSONProcessorTest.java
index e7822fc..5d99b5b 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/JSONProcessorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/JSONProcessorTest.java
@@ -20,7 +20,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class JSONProcessorTest extends GenericTest {
+class JSONProcessorTest extends GenericTest {
 
     @Test
     void shouldReturnPassedFormat() {
diff --git a/src/test/java/pl/szczepanik/silencio/processors/PropertiesProcessorTest.java b/src/test/java/pl/szczepanik/silencio/processors/PropertiesProcessorTest.java
index a9f51f9..3ad6ccf 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/PropertiesProcessorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/PropertiesProcessorTest.java
@@ -22,7 +22,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class PropertiesProcessorTest extends GenericTest {
+class PropertiesProcessorTest extends GenericTest {
 
     @Test
     void shouldReturnPassedFormat() {
diff --git a/src/test/java/pl/szczepanik/silencio/processors/XMLProcessorTest.java b/src/test/java/pl/szczepanik/silencio/processors/XMLProcessorTest.java
index ec321a4..40748d6 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/XMLProcessorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/XMLProcessorTest.java
@@ -20,7 +20,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class XMLProcessorTest extends GenericTest {
+class XMLProcessorTest extends GenericTest {
 
     @Test
     void shouldReturnPassedFormat() {
diff --git a/src/test/java/pl/szczepanik/silencio/processors/YAMLProcessorTest.java b/src/test/java/pl/szczepanik/silencio/processors/YAMLProcessorTest.java
index 909e483..989aee3 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/YAMLProcessorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/YAMLProcessorTest.java
@@ -19,7 +19,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class YAMLProcessorTest extends GenericTest {
+class YAMLProcessorTest extends GenericTest {
 
     @Test
     void shouldReturnPassedFormat() {
diff --git a/src/test/java/pl/szczepanik/silencio/processors/visitors/AbstractVisitorTest.java b/src/test/java/pl/szczepanik/silencio/processors/visitors/AbstractVisitorTest.java
index 158e21d..66b712c 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/visitors/AbstractVisitorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/visitors/AbstractVisitorTest.java
@@ -11,7 +11,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class AbstractVisitorTest extends GenericTest {
+class AbstractVisitorTest extends GenericTest {
 
     @Test
     void shouldFailWhenPassingValueToProcessValue() {
diff --git a/src/test/java/pl/szczepanik/silencio/processors/visitors/AbstractVisitor_processValueTest.java b/src/test/java/pl/szczepanik/silencio/processors/visitors/AbstractVisitor_processValueTest.java
index c25abb9..0c915ab 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/visitors/AbstractVisitor_processValueTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/visitors/AbstractVisitor_processValueTest.java
@@ -23,7 +23,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class AbstractVisitor_processValueTest extends GenericTest {
+class AbstractVisitor_processValueTest extends GenericTest {
 
     private static final Key key = new Key("myKey");
     private static final Object value = "yourValue";
diff --git a/src/test/java/pl/szczepanik/silencio/processors/visitors/JSONVisitorTest.java b/src/test/java/pl/szczepanik/silencio/processors/visitors/JSONVisitorTest.java
index a623d03..526b498 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/visitors/JSONVisitorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/visitors/JSONVisitorTest.java
@@ -21,7 +21,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class JSONVisitorTest extends GenericTest {
+class JSONVisitorTest extends GenericTest {
 
     @Test
     void shouldReportExceptionOnUnsupportedModel() throws Exception {
diff --git a/src/test/java/pl/szczepanik/silencio/processors/visitors/PropertiesVisitorTest.java b/src/test/java/pl/szczepanik/silencio/processors/visitors/PropertiesVisitorTest.java
index 5759046..d76dbe4 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/visitors/PropertiesVisitorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/visitors/PropertiesVisitorTest.java
@@ -16,7 +16,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class PropertiesVisitorTest extends GenericTest {
+class PropertiesVisitorTest extends GenericTest {
 
     @Test
     void shouldVisitAllJsonNodes() throws IOException {
diff --git a/src/test/java/pl/szczepanik/silencio/processors/visitors/XMLVisitorTest.java b/src/test/java/pl/szczepanik/silencio/processors/visitors/XMLVisitorTest.java
index 429e14e..ed89fff 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/visitors/XMLVisitorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/visitors/XMLVisitorTest.java
@@ -27,7 +27,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class XMLVisitorTest extends GenericTest {
+class XMLVisitorTest extends GenericTest {
 
     @Test
     void shouldReportExceptionOnUnsupportedModel() throws Exception {
diff --git a/src/test/java/pl/szczepanik/silencio/processors/visitors/YAMLVisitorTest.java b/src/test/java/pl/szczepanik/silencio/processors/visitors/YAMLVisitorTest.java
index 545ea9a..4e750d3 100644
--- a/src/test/java/pl/szczepanik/silencio/processors/visitors/YAMLVisitorTest.java
+++ b/src/test/java/pl/szczepanik/silencio/processors/visitors/YAMLVisitorTest.java
@@ -22,7 +22,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class YAMLVisitorTest extends GenericTest {
+class YAMLVisitorTest extends GenericTest {
 
     @Test
     void shouldReportExceptionOnUnsupportedModel() throws Exception {
diff --git a/src/test/java/pl/szczepanik/silencio/stubs/StubConverter.java b/src/test/java/pl/szczepanik/silencio/stubs/StubConverter.java
index 3f12fa5..79ee010 100644
--- a/src/test/java/pl/szczepanik/silencio/stubs/StubConverter.java
+++ b/src/test/java/pl/szczepanik/silencio/stubs/StubConverter.java
@@ -6,7 +6,7 @@
 
 /**
  * Stub converter that has only stub methods.
- * 
+ *
  * @author Damian Szczepanik (damianszczepanik@github)
  */
 public class StubConverter implements Converter {
diff --git a/src/test/java/pl/szczepanik/silencio/stubs/StubFormat.java b/src/test/java/pl/szczepanik/silencio/stubs/StubFormat.java
index 222fd47..47686a2 100644
--- a/src/test/java/pl/szczepanik/silencio/stubs/StubFormat.java
+++ b/src/test/java/pl/szczepanik/silencio/stubs/StubFormat.java
@@ -4,7 +4,7 @@
 
 /**
  * Stub format that has only stub methods.
- * 
+ *
  * @author Damian Szczepanik (damianszczepanik@github)
  */
 public class StubFormat extends Format {
diff --git a/src/test/java/pl/szczepanik/silencio/stubs/StubObjectMapper.java b/src/test/java/pl/szczepanik/silencio/stubs/StubObjectMapper.java
index 9ce2303..8e1ac84 100644
--- a/src/test/java/pl/szczepanik/silencio/stubs/StubObjectMapper.java
+++ b/src/test/java/pl/szczepanik/silencio/stubs/StubObjectMapper.java
@@ -10,10 +10,10 @@
 
 /**
  * Stub of @link {@link ObjectMapper} that has only stub methods.
- * 
+ *
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class StubObjectMapper extends ObjectMapper {
+class StubObjectMapper extends ObjectMapper {
 
     private Iterator<String> jsons;
 
@@ -29,7 +29,7 @@ public StubObjectMapper(String... jsons) {
         }
     }
 
-    public <T> T readValue(String content, Class<T> valueType)throws JsonProcessingException, JsonMappingException {
+    public <T> T readValue(String content, Class<T> valueType) throws JsonProcessingException, JsonMappingException {
         if (exception != null) {
             throw exception;
         } else if (jsons == null) {
diff --git a/src/test/java/pl/szczepanik/silencio/stubs/StubProcessor.java b/src/test/java/pl/szczepanik/silencio/stubs/StubProcessor.java
index ab78d82..d0e68dc 100644
--- a/src/test/java/pl/szczepanik/silencio/stubs/StubProcessor.java
+++ b/src/test/java/pl/szczepanik/silencio/stubs/StubProcessor.java
@@ -12,7 +12,7 @@
 
 /**
  * Stub of @link {@link AbstractProcessor} that has only stub methods.
- * 
+ *
  * @author Damian Szczepanik (damianszczepanik@github)
  */
 public class StubProcessor extends AbstractProcessor {
diff --git a/src/test/java/pl/szczepanik/silencio/utils/IOUtilityTest.java b/src/test/java/pl/szczepanik/silencio/utils/IOUtilityTest.java
index b5ff8f4..1ee2192 100644
--- a/src/test/java/pl/szczepanik/silencio/utils/IOUtilityTest.java
+++ b/src/test/java/pl/szczepanik/silencio/utils/IOUtilityTest.java
@@ -20,7 +20,7 @@
 /**
  * @author Damian Szczepanik (damianszczepanik@github)
  */
-public class IOUtilityTest extends GenericTest {
+class IOUtilityTest extends GenericTest {
 
     private static final String INVALID_HTML_PAGE = "This does not look like valid HTML page";
     private static final String URL_ADDRESS = "http://www.fancy.page";
diff --git a/src/test/java/pl/szczepanik/silencio/utils/PropertiesUtility.java b/src/test/java/pl/szczepanik/silencio/utils/PropertiesUtility.java
index a133c03..0ad315a 100644
--- a/src/test/java/pl/szczepanik/silencio/utils/PropertiesUtility.java
+++ b/src/test/java/pl/szczepanik/silencio/utils/PropertiesUtility.java
@@ -11,11 +11,9 @@ public class PropertiesUtility {
 
     /**
      * Assert two properties files according to keys and values are equal (comments are skipped).
-     * 
-     * @param prop1
-     *            first properties to compare
-     * @param prop2
-     *            second properties to compare
+     *
+     * @param prop1 first properties to compare
+     * @param prop2 second properties to compare
      */
     public static void assertEqual(Properties prop1, Properties prop2) {
         boolean keysEqual = prop1.keySet().equals(prop2.keySet());