cleanup

core-java-concurrency/src/main/resources/META-INF/persistence.xml

@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
-        http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd" version="2.1">
-
-    <!-- JDO tutorial "unit" -->
-    <persistence-unit name="Tutorial">
-        <exclude-unlisted-classes/>
-		<properties>
-			<property name="javax.jdo.PersistenceManagerFactoryClass" value="org.datanucleus.api.jdo.JDOPersistenceManagerFactory"/>		
-		    <property name="javax.jdo.option.ConnectionURL" value="jdbc:h2:mem:mypersistence"/>
-		    <property name="javax.jdo.option.ConnectionDriverName" value="org.h2.Driver"/>
-		    <property name="javax.jdo.option.ConnectionUserName" value="sa"/>
-		    <property name="javax.jdo.option.ConnectionPassword" value=""/>
-		    <property name="datanucleus.schema.autoCreateAll" value="true"/>
-		</properties>
-    </persistence-unit>
-</persistence>
-

core-java-concurrency/src/main/resources/data.csv

@@ -1,3 +0,0 @@
-1|IND|India
-2|MY|Malaysia
-3|AU|Australia

core-java-concurrency/src/main/resources/datasource.properties

@@ -1,6 +0,0 @@
-dataSourceClassName=//TBD
-dataSource.user=//TBD
-dataSource.password=//TBD
-dataSource.databaseName=//TBD
-dataSource.portNumber=//TBD
-dataSource.serverName=//TBD

core-java-concurrency/src/main/resources/js/bind.js

@@ -1,15 +0,0 @@
-var first = {
-    name: "Whiskey",
-    age: 5
-};
-
-var second = {
-    volume: 100
-};
-
-Object.bindProperties(first, second);
-
-print(first.volume);
-
-second.volume = 1000;
-print(first.volume);

core-java-concurrency/src/main/resources/js/locations.js

@@ -1 +0,0 @@
-print(__FILE__, __LINE__, __DIR__);

core-java-concurrency/src/main/resources/js/math_module.js

@@ -1,19 +0,0 @@
-var math = {
-    increment: function (num) {
-        return ++num;
-    },
-
-    failFunc: function () {
-        try {
-            throw "BOOM";
-        } catch (e if typeof e === 'string') {
-            print("String thrown: " + e);
-        }
-        catch (e) {
-            print("this shouldn't happen!");
-        }
-    }
-};
-
-
-math;

core-java-concurrency/src/main/resources/js/no_such.js

@@ -1,11 +0,0 @@
-var demo = {
-    __noSuchProperty__: function (propName) {
-        print("Accessed non-existing property: " + propName);
-    },
-
-    __noSuchMethod__: function (methodName) {
-        print("Invoked non-existing method: " + methodName);
-    }
-};
-
-demo;

core-java-concurrency/src/main/resources/js/script.js

@@ -1 +0,0 @@
-function increment(num) ++num;

core-java-concurrency/src/main/resources/js/trim.js

@@ -1,2 +0,0 @@
-print("   hello world".trimLeft());
-print("hello world     ".trimRight());

core-java-concurrency/src/main/resources/js/typed_arrays.js

@@ -1,9 +0,0 @@
-function arrays(arr) {
-
-    var javaIntArray = Java.to(arr, "int[]");
-    print(javaIntArray[0]);
-    print(javaIntArray[1]);
-    print(javaIntArray[2]);
-}
-
-arrays([100, "1654", true]);

core-java-concurrency/src/main/resources/log4j.properties

@@ -1,6 +0,0 @@
-log4j.rootLogger=DEBUG, A1
-
-log4j.appender.A1=org.apache.log4j.ConsoleAppender
-
-log4j.appender.A1.layout=org.apache.log4j.PatternLayout
-log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n

core-java-concurrency/src/main/resources/log4jstructuraldp.properties

@@ -1,9 +0,0 @@
-
-# Root logger 
-log4j.rootLogger=INFO, file, stdout
-
-# Write to console
-log4j.appender.stdout=org.apache.log4j.ConsoleAppender
-log4j.appender.stdout.Target=System.out
-log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
-log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

core-java-concurrency/src/main/resources/targetFile.tmp

@@ -1,2 +0,0 @@
-line 1
-a second line

core-java-concurrency/src/test/java/com/baeldung/java/concurrentmap/ConcurrentMapPerformanceManualTest.java

@@ -1,27 +1,31 @@
 package com.baeldung.java.concurrentmap;
 
-import org.junit.Test;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Hashtable;
 import java.util.Map;
-import java.util.concurrent.*;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.TimeUnit;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import org.junit.Test;
 
 public class ConcurrentMapPerformanceManualTest {
 
     @Test
     public void givenMaps_whenGetPut500KTimes_thenConcurrentMapFaster() throws Exception {
-        Map<String, Object> hashtable = new Hashtable<>();
-        Map<String, Object> synchronizedHashMap = Collections.synchronizedMap(new HashMap<>());
-        Map<String, Object> concurrentHashMap = new ConcurrentHashMap<>();
+        final Map<String, Object> hashtable = new Hashtable<>();
+        final Map<String, Object> synchronizedHashMap = Collections.synchronizedMap(new HashMap<>());
+        final Map<String, Object> concurrentHashMap = new ConcurrentHashMap<>();
 
-        long hashtableAvgRuntime = timeElapseForGetPut(hashtable);
-        long syncHashMapAvgRuntime = timeElapseForGetPut(synchronizedHashMap);
-        long concurrentHashMapAvgRuntime = timeElapseForGetPut(concurrentHashMap);
+        final long hashtableAvgRuntime = timeElapseForGetPut(hashtable);
+        final long syncHashMapAvgRuntime = timeElapseForGetPut(synchronizedHashMap);
+        final long concurrentHashMapAvgRuntime = timeElapseForGetPut(concurrentHashMap);
 
         System.out.println(String.format("Hashtable: %s, syncHashMap: %s, ConcurrentHashMap: %s", hashtableAvgRuntime, syncHashMapAvgRuntime, concurrentHashMapAvgRuntime));
 
@@ -31,13 +35,13 @@ public class ConcurrentMapPerformanceManualTest {
     }
 
     private long timeElapseForGetPut(Map<String, Object> map) throws InterruptedException {
-        ExecutorService executorService = Executors.newFixedThreadPool(4);
-        long startTime = System.nanoTime();
+        final ExecutorService executorService = Executors.newFixedThreadPool(4);
+        final long startTime = System.nanoTime();
         for (int i = 0; i < 4; i++) {
             executorService.execute(() -> {
                 for (int j = 0; j < 500_000; j++) {
-                    int value = ThreadLocalRandom.current().nextInt(10000);
-                    String key = String.valueOf(value);
+                    final int value = ThreadLocalRandom.current().nextInt(10000);
+                    final String key = String.valueOf(value);
                     map.put(key, value);
                     map.get(key);
                 }
@@ -56,11 +60,11 @@ public class ConcurrentMapPerformanceManualTest {
                 return 1;
             }
         }
-        int executeTimes = 5000;
+        final int executeTimes = 5000;
 
-        Map<SameHash, Integer> mapOfSameHash = new ConcurrentHashMap<>();
+        final Map<SameHash, Integer> mapOfSameHash = new ConcurrentHashMap<>();
         ExecutorService executorService = Executors.newFixedThreadPool(2);
-        long sameHashStartTime = System.currentTimeMillis();
+        final long sameHashStartTime = System.currentTimeMillis();
         for (int i = 0; i < 2; i++) {
             executorService.execute(() -> {
                 for (int j = 0; j < executeTimes; j++) {
@@ -71,10 +75,10 @@ public class ConcurrentMapPerformanceManualTest {
         executorService.shutdown();
         executorService.awaitTermination(5, TimeUnit.SECONDS);
 
-        long mapOfSameHashDuration = System.currentTimeMillis() - sameHashStartTime;
-        Map<Object, Integer> mapOfDefaultHash = new ConcurrentHashMap<>();
+        final long mapOfSameHashDuration = System.currentTimeMillis() - sameHashStartTime;
+        final Map<Object, Integer> mapOfDefaultHash = new ConcurrentHashMap<>();
         executorService = Executors.newFixedThreadPool(2);
-        long defaultHashStartTime = System.currentTimeMillis();
+        final long defaultHashStartTime = System.currentTimeMillis();
         for (int i = 0; i < 2; i++) {
             executorService.execute(() -> {
                 for (int j = 0; j < executeTimes; j++) {
@@ -85,11 +89,11 @@ public class ConcurrentMapPerformanceManualTest {
         executorService.shutdown();
         executorService.awaitTermination(5, TimeUnit.SECONDS);
 
-        long mapOfDefaultHashDuration = System.currentTimeMillis() - defaultHashStartTime;
+        final long mapOfDefaultHashDuration = System.currentTimeMillis() - defaultHashStartTime;
         assertEquals(executeTimes * 2, mapOfDefaultHash.size());
         assertEquals(executeTimes * 2, mapOfSameHash.size());
         System.out.println(String.format("same-hash: %s, default-hash: %s", mapOfSameHashDuration, mapOfDefaultHashDuration));
-        assertTrue("same hashCode() should greatly degrade performance", mapOfSameHashDuration > mapOfDefaultHashDuration * 10);
+        assertTrue("same hashCode() should greatly degrade performance", mapOfSameHashDuration > (mapOfDefaultHashDuration * 10));
     }
 
 }

core-java-concurrency/src/test/resources/configuration.properties

@@ -1,4 +0,0 @@
-# this is sample property file for PropertiesLoaderTest configuration needs
-! this is also a comment
-sampleConfEntry = sample String value
-colonSeparatedEntry : colon separated entry value

core-java-concurrency/src/test/resources/test.find

@@ -1 +0,0 @@
-Test of JNDI on file.

core-java-concurrency/src/test/resources/testFolder/sample_file_1.in

@@ -1 +0,0 @@
-Hello world

core-java-concurrency/src/test/resources/testFolder/sample_file_2.in

@@ -1 +0,0 @@
-Hello world !

core-java-concurrency/src/test/resources/test_read.in

@@ -1 +0,0 @@
-Hello world

core-java-concurrency/src/test/resources/test_read1.in

@@ -1 +0,0 @@
-Hello world 1

core-java-concurrency/src/test/resources/test_read2.in

@@ -1 +0,0 @@
-2,3 4

core-java-concurrency/src/test/resources/test_read3.in

@@ -1 +0,0 @@
-Hello 1

core-java-concurrency/src/test/resources/test_read7.in

@@ -1 +0,0 @@
-青空

core-java-concurrency/src/test/resources/test_read8.in

@@ -1,2 +0,0 @@
-Hello world 
- Test line 

core-java-concurrency/src/test/resources/test_read_d.in

@@ -1 +0,0 @@
-John,Adam-Tom