create core-java-io module (#3397)

* make sure modules using java8

* move url matching code

* upgrade boot parent

* minor cleanup

* fix blocking tests

* add core-java-io module

core-java-io/.gitignore

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+*.class
+
+0.*
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+.resourceCache
+
+# Packaged files #
+*.jar
+*.war
+*.ear
+
+# Files generated by integration tests
+*.txt
+backup-pom.xml
+/bin/
+/temp
+
+#IntelliJ specific
+.idea/
+*.iml

core-java-io/README.md

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+=========
+
+## Core Java IO Cookbooks and Examples
+
+### Relevant Articles: 
+- [Java - Reading a Large File Efficiently](http://www.baeldung.com/java-read-lines-large-file)
+- [Java InputStream to String](http://www.baeldung.com/convert-input-stream-to-string)
+- [Java – Write to File](http://www.baeldung.com/java-write-to-file)
+- [Java - Convert File to InputStream](http://www.baeldung.com/convert-file-to-input-stream)
+- [Java Scanner](http://www.baeldung.com/java-scanner)
+- [Java – Byte Array to Writer](http://www.baeldung.com/java-convert-byte-array-to-writer)
+- [Java – Directory Size](http://www.baeldung.com/java-folder-size)
+- [Differences Between the Java WatchService API and the Apache Commons IO Monitor Library](http://www.baeldung.com/java-watchservice-vs-apache-commons-io-monitor-library)
+- [Calculate the Size of a File in Java](http://www.baeldung.com/java-file-size)
+- [Iterable to Stream in Java](http://www.baeldung.com/java-iterable-to-stream)
+- [Comparing getPath(), getAbsolutePath(), and getCanonicalPath() in Java](http://www.baeldung.com/java-path)
+- [Using Java MappedByteBuffer](http://www.baeldung.com/java-mapped-byte-buffer)
+- [Converting String to Stream of chars](http://www.baeldung.com/java-string-to-stream)
+- [How to Iterate Over a Stream With Indices](http://www.baeldung.com/java-stream-indices)
+- [Copy a File with Java](http://www.baeldung.com/java-copy-file)
+- [Java – Append Data to a File](http://www.baeldung.com/java-append-to-file)
+- [FileNotFoundException in Java](http://www.baeldung.com/java-filenotfound-exception)
+- [How to Read a File in Java](http://www.baeldung.com/reading-file-in-java)
+- [A Guide To NIO2 Asynchronous File Channel](http://www.baeldung.com/java-nio2-async-file-channel)
+- [A Guide To NIO2 FileVisitor](http://www.baeldung.com/java-nio2-file-visitor)
+- [A Guide To NIO2 File Attribute APIs](http://www.baeldung.com/java-nio2-file-attribute)
+- [Introduction to the Java NIO2 File API](http://www.baeldung.com/java-nio-2-file-api)
+- [Zipping and Unzipping in Java](http://www.baeldung.com/java-compress-and-uncompress)

core-java-io/src/main/java/com/baeldung/filesystem/jndi/LookupFSJNDI.java

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+package com.baeldung.filesystem.jndi;
+
+import java.io.File;
+import java.util.Hashtable;
+
+import javax.naming.Context;
+import javax.naming.InitialContext;
+import javax.naming.NamingException;
+
+public class LookupFSJNDI {
+    private InitialContext ctx = null;
+
+    public LookupFSJNDI() throws NamingException {
+        super();
+        init();
+    }
+
+    private void init() throws NamingException {
+        Hashtable<String, String> env = new Hashtable<String, String>();
+
+        env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
+        // URI to namespace (actual directory)
+        env.put(Context.PROVIDER_URL, "file:./src/test/resources");
+
+        ctx = new InitialContext(env);
+    }
+
+    public InitialContext getCtx() {
+        return ctx;
+    }
+
+    public File getFile(String fileName) {
+        File file;
+        try {
+            file = (File) getCtx().lookup(fileName);
+        } catch (NamingException e) {
+            file = null;
+        }
+        return file;
+    }
+
+}

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

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+<?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-io/src/main/resources/META-INF/services/com.sun.source.util.Plugin

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+com.baeldung.javac.SampleJavacPlugin

core-java-io/src/main/resources/countries.properties

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+UK
+US
+Germany

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

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+1|IND|India
+2|MY|Malaysia
+3|AU|Australia

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

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+dataSourceClassName=//TBD
+dataSource.user=//TBD
+dataSource.password=//TBD
+dataSource.databaseName=//TBD
+dataSource.portNumber=//TBD
+dataSource.serverName=//TBD

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

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+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-io/src/main/resources/js/locations.js

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+print(__FILE__, __LINE__, __DIR__);

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

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+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-io/src/main/resources/js/no_such.js

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