Merge branch 'master' into BAEL-11403

core-java-io/README.md

@@ -35,3 +35,5 @@
 - [Guide to Java OutputStream](https://www.baeldung.com/java-outputstream)
 - [Reading a CSV File into an Array](https://www.baeldung.com/java-csv-file-array)
 - [Guide to BufferedReader](https://www.baeldung.com/java-buffered-reader)
+- [How to Get the File Extension of a File in Java](http://www.baeldung.com/java-file-extension)
+- [Getting a File’s Mime Type in Java](http://www.baeldung.com/java-file-mime-type)

core-java-io/pom.xml

@@ -160,6 +160,17 @@
             <version>${opencsv.version}</version>
             <scope>test</scope>
         </dependency>
+        <!-- Mime Type Resolution Libraries -->
+        <dependency>
+            <groupId>org.apache.tika</groupId>
+            <artifactId>tika-core</artifactId>
+            <version>${tika.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>net.sf.jmimemagic</groupId>
+            <artifactId>jmimemagic</artifactId>
+            <version>${jmime-magic.version}</version>
+        </dependency>
     </dependencies>
 
     <build>
@@ -264,6 +275,9 @@
         <esapi.version>2.1.0.1</esapi.version>
         <jmh-generator-annprocess.version>1.19</jmh-generator-annprocess.version>
         <async-http-client.version>2.4.5</async-http-client.version>
+        <!-- Mime Type Libraries -->
+        <tika.version>1.18</tika.version>
+        <jmime-magic.version>0.1.5</jmime-magic.version>
     </properties>
 
 </project>

core-java-security/README.md

@@ -0,0 +1,11 @@
+## Core Java Security 
+
+### Relevant Articles: 
+- [MD5 Hashing in Java](http://www.baeldung.com/java-md5)
+- [Guide to the Cipher Class](http://www.baeldung.com/java-cipher-class)
+- [Introduction to SSL in Java](http://www.baeldung.com/java-ssl)
+- [Java KeyStore API](http://www.baeldung.com/java-keystore)
+- [Encrypting and Decrypting Files in Java](http://www.baeldung.com/java-cipher-input-output-stream)
+- [Hashing a Password in Java](https://www.baeldung.com/java-password-hashing)
+- [SSL Handshake Failures](https://www.baeldung.com/java-ssl-handshake-failures)
+- [SHA-256 Hashing in Java](https://www.baeldung.com/sha-256-hashing-java)

core-java-security/pom.xml

@@ -0,0 +1,55 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>core-java-security</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+    <name>core-java-security</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <!-- test scoped -->
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj-core.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>commons-codec</groupId>
+            <artifactId>commons-codec</artifactId>
+            <version>${commons-codec.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.bouncycastle</groupId>
+            <artifactId>bcprov-jdk15on</artifactId>
+            <version>${bouncycastle.version}</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+
+        <!-- util -->
+        <commons-lang3.version>3.8.1</commons-lang3.version>
+        <bouncycastle.version>1.55</bouncycastle.version>
+        <commons-codec.version>1.10</commons-codec.version>
+
+        <!-- testing -->
+        <assertj-core.version>3.10.0</assertj-core.version>
+      
+    </properties>
+
+</project>

core-java-security/src/main/resources/logback.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <logger name="org.springframework" level="WARN" />
+    <logger name="org.springframework.transaction" level="WARN" />
+
+    <!-- in order to debug some marshalling issues, this needs to be TRACE -->
+    <logger name="org.springframework.web.servlet.mvc" level="WARN" />
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>