Script for downloading binaries (#3243)

* Delete java/lib directory

* Create download-junit-jars.sh

* Update build.xml for downloading junit&mockito jars

* Delete tools/java/java-build/target directory

* Delete tools/java/cpp-build/target directory

java/build.xml

@@ -11,6 +11,8 @@
   <property name="prefixmapper.test.dir" value="internal/prefixmapper/test"/>
   <property name="build.dir" value="build"/>
   <property name="classes.dir" value="${build.dir}/classes"/>
+  <property name="script.dir" value="script"/>    
+  <property name="script.name" value="download-junit-jars.sh"/> 
   <property name="jar.dir" value="${build.dir}/jar"/>
   <property name="lib.dir" value="lib"/>
   <property name="report.dir" value="${build.dir}/junitreport"/>
@@ -30,7 +32,13 @@
       <include name="**/*.jar"/>
     </fileset>
   </path>
-
+
+  <target name="download-jars">        
+  	<!-- Execute the shell script to download junit and mockito jars -->        
+	  <exec executable="sh" dir="${script.dir}">            
+		 <arg value="${script.name}"/>        
+	  </exec>    
+  </target>
   <target name="build-phone-metadata">
     <exec executable="java">
       <arg value="-jar" />
@@ -186,7 +194,7 @@
   </target>
 
   <target name="compile" description="Compile Java source."
-          depends="build-phone-metadata,build-short-metadata,build-alternate-metadata,build-carrier-data,build-geo-data,build-timezones-data">
+          depends="download-jars,build-phone-metadata,build-short-metadata,build-alternate-metadata,build-carrier-data,build-geo-data,build-timezones-data">
     <mkdir dir="${classes.dir}"/>
     <javac srcdir="${libphonenumber.src.dir};${carrier.src.dir};${geocoder.src.dir};${prefixmapper.src.dir}"
            destdir="${classes.dir}" classpathref="classpath" includeAntRuntime="false" encoding="UTF-8"/>

java/script/download-junit-jars.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# Set the version of JUnit and Mockito
+junit_version="4.13.1"
+mockito_version="1.10.19"
+cd ../
+# Function to download a JAR if not available
+download_jar() {
+    local jar_name="$1"
+    local jar_filename="$2"
+    local download_url="$3"
+
+    if [ ! -f "lib/$jar_filename" ]; then
+        echo "Downloading $jar_name..."
+        wget "$download_url" -P lib
+    else
+        echo "$jar_name already exists in lib directory."
+    fi
+}
+
+# Check and download JUnit&Mockito JAR
+download_jar "JUnit" "junit-$junit_version.jar" "https://repo1.maven.org/maven2/junit/junit/$junit_version/junit-$junit_version.jar"
+download_jar "Mockito" "mockito-all-$mockito_version.jar" "https://repo1.maven.org/maven2/org/mockito/mockito-all/$mockito_version/mockito-all-$mockito_version.jar"
+
+# Run the mvn install command for the Snapshot jars
+cd ../ 
+mvn clean install