JAVA-8405: reducing logging for tutorials-build-job

apache-olingo/olingo2/src/test/resources/logback-test.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

apache-shiro/src/test/resources/logback-test.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

core-java-modules/core-java-lambdas/src/main/java/com/baeldung/java8/lambda/exceptions/LambdaExceptionWrappers.java

@@ -1,15 +1,20 @@
 package com.baeldung.java8.lambda.exceptions;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.util.function.Consumer;
 
 public class LambdaExceptionWrappers {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(LambdaExceptionWrappers.class);
+
     public static Consumer<Integer> lambdaWrapper(Consumer<Integer> consumer) {
         return i -> {
             try {
                 consumer.accept(i);
             } catch (ArithmeticException e) {
-                System.err.println("Arithmetic Exception occured : " + e.getMessage());
+                LOGGER.error("Arithmetic Exception occured : {}", e.getMessage());
             }
         };
     }
@@ -21,7 +26,7 @@ public class LambdaExceptionWrappers {
             } catch (Exception ex) {
                 try {
                     E exCast = clazz.cast(ex);
-                    System.err.println("Exception occured : " + exCast.getMessage());
+                    LOGGER.error("Exception occured : {}", exCast.getMessage());
                 } catch (ClassCastException ccEx) {
                     throw ex;
                 }
@@ -46,7 +51,7 @@ public class LambdaExceptionWrappers {
             } catch (Exception ex) {
                 try {
                     E exCast = exceptionClass.cast(ex);
-                    System.err.println("Exception occured : " + exCast.getMessage());
+                    LOGGER.error("Exception occured : {}", exCast.getMessage());
                 } catch (ClassCastException ccEx) {
                     throw new RuntimeException(ex);
                 }

core-java-modules/core-java-lambdas/src/test/java/com/baeldung/java8/lambda/methodreference/MethodReferenceUnitTest.java

@@ -7,14 +7,16 @@ import java.util.function.BiFunction;
 
 import org.apache.commons.lang3.StringUtils;
 import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class MethodReferenceUnitTest {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(MethodReferenceUnitTest.class);
+
     private static <T> void doNothingAtAll(Object... o) {
     }
 
-    ;
-    
     @Test
     public void referenceToStaticMethod() {
         List<String> messages = Arrays.asList("Hello", "Baeldung", "readers!");
@@ -61,7 +63,7 @@ public class MethodReferenceUnitTest {
 
     @Test
     public void limitationsAndAdditionalExamples() {
-        createBicyclesList().forEach(b -> System.out.printf("Bike brand is '%s' and frame size is '%d'%n", b.getBrand(), b.getFrameSize()));
+        createBicyclesList().forEach(b -> LOGGER.debug("Bike brand is '{}' and frame size is '{}'", b.getBrand(), b.getFrameSize()));
         createBicyclesList().forEach((o) -> MethodReferenceUnitTest.doNothingAtAll(o));
     }
 

core-java-modules/core-java-lang-syntax/src/main/java/com/baeldung/generics/Building.java

@@ -7,6 +7,6 @@ public class Building {
     private static final Logger LOGGER = LoggerFactory.getLogger(Building.class);
 
     public void paint() {
-        LOGGER.info("Painting Building");
+        LOGGER.debug("Painting Building");
     }
 }

core-java-modules/core-java-lang-syntax/src/main/java/com/baeldung/generics/House.java

@@ -7,6 +7,6 @@ public class House extends Building {
     private static final Logger LOGGER = LoggerFactory.getLogger(House.class);
 
     public void paint() {
-        LOGGER.info("Painting House");
+        LOGGER.debug("Painting House");
     }
 }

core-java-modules/core-java-lang-syntax/src/main/java/com/baeldung/initializationguide/User.java

@@ -1,8 +1,13 @@
 package com.baeldung.initializationguide;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.io.Serializable;
 
 public class User implements Serializable, Cloneable {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(User.class);
     private static final long serialVersionUID = 1L;
     static String forum;
     private String name;
@@ -10,12 +15,12 @@ public class User implements Serializable, Cloneable {
 
     {
         id = 0;
-        System.out.println("Instance Initializer");
+        LOGGER.debug("Instance Initializer");
     }
 
     static {
-    	forum = "Java";
-        System.out.println("Static Initializer");
+        forum = "Java";
+        LOGGER.debug("Static Initializer");
     }
 
     public User(String name, int id) {
@@ -25,7 +30,7 @@ public class User implements Serializable, Cloneable {
     }
 
     public User() {
-        System.out.println("Constructor");
+        LOGGER.debug("Constructor");
     }
 
     public String getName() {

core-java-modules/core-java-lang-syntax/src/main/java/com/baeldung/loops/LoopsInJava.java

@@ -1,12 +1,17 @@
 package com.baeldung.loops;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 public class LoopsInJava {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(LoopsInJava.class);
+    
     public int[] simple_for_loop() {
         int[] arr = new int[5];
         for (int i = 0; i < 5; i++) {
             arr[i] = i;
-            System.out.println("Simple for loop: i - " + i);
+            LOGGER.debug("Simple for loop: i - " + i);
         }
         return arr;
     }
@@ -16,7 +21,7 @@ public class LoopsInJava {
         int[] arr = new int[5];
         for (int num : intArr) {
             arr[num] = num;
-            System.out.println("Enhanced for-each loop: i - " + num);
+            LOGGER.debug("Enhanced for-each loop: i - " + num);
         }
         return arr;
     }
@@ -26,7 +31,7 @@ public class LoopsInJava {
         int[] arr = new int[5];
         while (i < 5) {
             arr[i] = i;
-            System.out.println("While loop: i - " + i++);
+            LOGGER.debug("While loop: i - " + i++);
         }
         return arr;
     }
@@ -36,7 +41,7 @@ public class LoopsInJava {
         int[] arr = new int[5];
         do {
             arr[i] = i;
-            System.out.println("Do-While loop: i - " + i++);
+            LOGGER.debug("Do-While loop: i - " + i++);
         } while (i < 5);
         return arr;
     }

core-java-modules/core-java-lang-syntax/src/main/java/com/baeldung/switchstatement/SwitchStatement.java

@@ -1,7 +1,13 @@
 package com.baeldung.switchstatement;
 
+import com.baeldung.loops.LoopsInJava;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 public class SwitchStatement {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(SwitchStatement.class);
+
     public String exampleOfIF(String animal) {
 
         String result;
@@ -42,11 +48,11 @@ public class SwitchStatement {
         switch (animal) {
 
         case "DOG":
-            System.out.println("domestic animal");
+            LOGGER.debug("domestic animal");
             result = "domestic animal";
 
         default:
-            System.out.println("unknown animal");
+            LOGGER.debug("unknown animal");
             result = "unknown animal";
 
         }

core-java-modules/core-java-lang-syntax/src/test/java/com/baeldung/loops/LoopsUnitTest.java

@@ -8,12 +8,16 @@ import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
 
+import com.baeldung.initializationguide.User;
 import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class LoopsUnitTest {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(LoopsUnitTest.class);
     private LoopsInJava loops = new LoopsInJava();
     private static List<String> list = new ArrayList<>();
     private static Set<String> set = new HashSet<>();
@@ -65,41 +69,44 @@ public class LoopsUnitTest {
     @Test
     public void whenUsingSimpleFor_shouldIterateList() {
         for (int i = 0; i < list.size(); i++) {
-            System.out.println(list.get(i));
+            LOGGER.debug(list.get(i));
         }
     }
 
     @Test
     public void whenUsingEnhancedFor_shouldIterateList() {
         for (String item : list) {
-            System.out.println(item);
+            LOGGER.debug(item);
         }
     }
 
     @Test
     public void whenUsingEnhancedFor_shouldIterateSet() {
         for (String item : set) {
-            System.out.println(item);
+            LOGGER.debug(item);
         }
     }
 
     @Test
     public void whenUsingEnhancedFor_shouldIterateMap() {
         for (Entry<String, Integer> entry : map.entrySet()) {
-            System.out.println("Key: " + entry.getKey() + " - " + "Value: " + entry.getValue());
+            LOGGER.debug("Key: " + entry.getKey() + " - " + "Value: " + entry.getValue());
         }
     }
 
     @Test
     public void whenUsingSimpleFor_shouldRunLabelledLoop() {
-        aa: for (int i = 1; i <= 3; i++) {
-            if (i == 1)
+        aa:
+        for (int i = 1; i <= 3; i++) {
+            if (i == 1) {
                 continue;
-            bb: for (int j = 1; j <= 3; j++) {
+            }
+            bb:
+            for (int j = 1; j <= 3; j++) {
                 if (i == 2 && j == 2) {
                     break aa;
                 }
-                System.out.println(i + " " + j);
+                LOGGER.debug(i + " " + j);
             }
         }
     }

jta/src/test/resources/logback-test.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

kubernetes/k8s-admission-controller/src/test/resources/logback-test.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

libraries-3/src/test/resources/logback-test.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

libraries-security/src/test/resources/logback-test.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

logback-config.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

persistence-modules/hibernate-exceptions/src/main/java/com/baeldung/hibernate/exception/lazyinitialization/HibernateUtil.java

@@ -24,7 +24,7 @@ public class HibernateUtil {
                 settings.put(Environment.USER, "sa");
                 settings.put(Environment.PASS, "");
                 settings.put(Environment.DIALECT, "org.hibernate.dialect.HSQLDialect");
-                settings.put(Environment.SHOW_SQL, "true");
+                settings.put(Environment.SHOW_SQL, "false");
                 settings.put(Environment.HBM2DDL_AUTO, "update");
                 configuration.setProperties(settings);
                 configuration.addAnnotatedClass(User.class);

persistence-modules/hibernate-exceptions/src/main/java/com/baeldung/hibernate/exception/transientobject/HibernateUtil.java

@@ -27,7 +27,7 @@ public class HibernateUtil {
                 settings.put(Environment.USER, "sa");
                 settings.put(Environment.PASS, "");
                 settings.put(Environment.DIALECT, "org.hibernate.dialect.HSQLDialect");
-                settings.put(Environment.SHOW_SQL, "true");
+                settings.put(Environment.SHOW_SQL, "false");
                 settings.put(Environment.USE_SQL_COMMENTS, "true");
                 settings.put(Environment.HBM2DDL_AUTO, "update");
                 configuration.setProperties(settings);

persistence-modules/hibernate5/src/main/java/com/baeldung/hibernate/interceptors/CustomInterceptor.java

@@ -16,7 +16,7 @@ public class CustomInterceptor extends EmptyInterceptor {
     @Override
     public boolean onSave(Object entity, Serializable id, Object[] state, String[] propertyNames, Type[] types) {
         if (entity instanceof User) {
-            logger.info(((User) entity).toString());
+            logger.debug(entity.toString());
         }
         return super.onSave(entity, id, state, propertyNames, types);
     }
@@ -25,7 +25,7 @@ public class CustomInterceptor extends EmptyInterceptor {
     public boolean onFlushDirty(Object entity, Serializable id, Object[] currentState, Object [] previousState, String[] propertyNames, Type[] types) {
         if (entity instanceof User) {
             ((User) entity).setLastModified(new Date());
-            logger.info(((User) entity).toString());
+            logger.debug(entity.toString());
         }
         return super.onFlushDirty(entity, id, currentState, previousState, propertyNames, types);
     }

persistence-modules/hibernate5/src/main/java/com/baeldung/hibernate/interceptors/entity/User.java

@@ -1,7 +1,5 @@
 package com.baeldung.hibernate.interceptors.entity;
 
-import java.util.Date;
-
 import javax.persistence.Basic;
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
@@ -9,6 +7,7 @@ import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import javax.persistence.Temporal;
 import javax.persistence.TemporalType;
+import java.util.Date;
 
 @Entity(name = "hbi_user")
 public class User {

persistence-modules/hibernate5/src/test/java/com/baeldung/hibernate/hilo/HibernateHiloUnitTest.java

@@ -42,9 +42,9 @@ public class HibernateHiloUnitTest {
     private void configureLogger() {
         BasicConfigurator.configure();
         LogManager.getLogger("org.hibernate").setLevel(Level.ERROR);
-        LogManager.getLogger("org.hibernate.id.enhanced.SequenceStructure").setLevel(Level.DEBUG);
-        LogManager.getLogger("org.hibernate.event.internal.AbstractSaveEventListener").setLevel(Level.DEBUG);
-        LogManager.getLogger("org.hibernate.SQL").setLevel(Level.DEBUG);
+        LogManager.getLogger("org.hibernate.id.enhanced.SequenceStructure").setLevel(Level.INFO);
+        LogManager.getLogger("org.hibernate.event.internal.AbstractSaveEventListener").setLevel(Level.INFO);
+        LogManager.getLogger("org.hibernate.SQL").setLevel(Level.INFO);
     }
 
 

persistence-modules/hibernate5/src/test/java/com/baeldung/hibernate/proxy/HibernateProxyUnitTest.java

@@ -1,5 +1,8 @@
 package com.baeldung.hibernate.proxy;
 
+import org.apache.log4j.BasicConfigurator;
+import org.apache.log4j.Level;
+import org.apache.log4j.LogManager;
 import org.hibernate.*;
 import org.hibernate.proxy.HibernateProxy;
 import org.junit.After;

persistence-modules/hibernate5/src/test/resources/hibernate-hilo.properties

@@ -2,7 +2,7 @@ hibernate.connection.driver_class=org.h2.Driver
 hibernate.connection.url=jdbc:h2:mem:hilo_db;DB_CLOSE_DELAY=-1
 hibernate.connection.username=sa
 hibernate.dialect=org.hibernate.dialect.H2Dialect
-hibernate.show_sql=true
+hibernate.show_sql=false
 hibernate.hbm2ddl.auto=create-drop
 hibernate.c3p0.min_size=5
 hibernate.c3p0.max_size=20

persistence-modules/hibernate5/src/test/resources/hibernate-interceptors.properties

@@ -5,6 +5,6 @@ hibernate.connection.autocommit=true
 jdbc.password=
 
 hibernate.dialect=org.hibernate.dialect.H2Dialect
-hibernate.show_sql=true
+hibernate.show_sql=false
 hibernate.hbm2ddl.auto=create-drop
 hibernate.current_session_context_class=org.hibernate.context.internal.ThreadLocalSessionContext

persistence-modules/hibernate5/src/test/resources/hibernate-lifecycle.properties

@@ -5,5 +5,5 @@ hibernate.connection.password=
 hibernate.connection.autocommit=true
 
 hibernate.dialect=org.hibernate.dialect.H2Dialect
-hibernate.show_sql=true
+hibernate.show_sql=false
 hibernate.hbm2ddl.auto=validate

persistence-modules/hibernate5/src/test/resources/hibernate-namingstrategy.properties

@@ -3,7 +3,7 @@ hibernate.connection.url=jdbc:h2:mem:mydb1;DB_CLOSE_DELAY=-1
 hibernate.connection.username=sa
 hibernate.dialect=org.hibernate.dialect.H2Dialect
 
-hibernate.show_sql=true
+hibernate.show_sql=false
 hibernate.hbm2ddl.auto=create-drop
 
 hibernate.physical_naming_strategy=com.baeldung.hibernate.namingstrategy.CustomPhysicalNamingStrategy

persistence-modules/hibernate5/src/test/resources/hibernate-persistjson.properties

@@ -3,5 +3,5 @@ hibernate.connection.url=jdbc:h2:mem:mydb1;DB_CLOSE_DELAY=-1
 hibernate.connection.username=sa
 hibernate.dialect=org.hibernate.dialect.H2Dialect
 
-hibernate.show_sql=true
+hibernate.show_sql=false
 hibernate.hbm2ddl.auto=create-drop

persistence-modules/hibernate5/src/test/resources/hibernate.properties

@@ -5,7 +5,7 @@ hibernate.connection.autocommit=true
 jdbc.password=
 
 hibernate.dialect=org.hibernate.dialect.H2Dialect
-hibernate.show_sql=true
+hibernate.show_sql=false
 hibernate.hbm2ddl.auto=create-drop
 
 hibernate.c3p0.min_size=5

persistence-modules/spring-boot-persistence-h2/src/test/resources/logback-test.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

persistence-modules/spring-data-jpa-enterprise/src/test/java/com/baeldung/SpringContextTest.java

@@ -3,12 +3,14 @@ package com.baeldung;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.TestPropertySource;
 import org.springframework.test.context.junit4.SpringRunner;
 
 import com.baeldung.boot.Application;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = Application.class)
+@TestPropertySource(properties = {"spring.jpa.show-sql=false "})
 public class SpringContextTest {
 
     @Test

persistence-modules/spring-data-jpa-enterprise/src/test/java/com/baeldung/partialupdate/PartialUpdateUnitTest.java

@@ -7,6 +7,7 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.TestPropertySource;
 import org.springframework.test.context.junit4.SpringRunner;
 
 import com.baeldung.partialupdate.model.Customer;
@@ -16,6 +17,7 @@ import com.baeldung.partialupdate.service.CustomerService;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = PartialUpdateApplication.class)
+@TestPropertySource(properties = {"spring.jpa.show-sql=false "})
 public class PartialUpdateUnitTest {
 
     @Autowired