Support down to SDK version 16

Author: astonbitecode

java/pom.xml

@@ -41,8 +41,7 @@
         <dependency>
             <groupId>io.github.astonbitecode</groupId>
             <artifactId>j4rs</artifactId>
-            <version>0.3.0</version>
-            <classifier>java7</classifier>
+            <version>0.3.0-java7</version>
         </dependency>
         <!-- Test dependencies -->
         <dependency>

rust-build/build_rust_for_rust_keylock_android.sh

@@ -20,7 +20,7 @@ mkdir -p $ANDROID_JAVA_NATIVE
 cd $ANDROID_RUST
 
 ANDROID_TOOLCHAIN_DIR=$BASEDIR/android-toolchain
-OPENSSL_BUILD_DIR=$BASEDIR/tools/openssl-1.1.0j/build
+OPENSSL_BUILD_DIR=$BASEDIR/tools/openssl-1.1.0g/build
 CC="${ANDROID_TOOLCHAIN_DIR}/bin/arm-linux-androideabi-gcc" AR="${ANDROID_TOOLCHAIN_DIR}/bin/arm-linux-androideabi-ar" OPENSSL_DIR=${OPENSSL_BUILD_DIR} OPENSSL_LIB_DIR=${OPENSSL_BUILD_DIR}/lib OPENSSL_INCLUDE_DIR=${OPENSSL_BUILD_DIR}/include OPENSSL_STATIC=true $CARGO_HOME/bin/cargo build --target=arm-linux-androideabi --release
 
 echo "Copying $ANDROID_RUST_KEYLOCK_LIB to $ANDROID_JAVA_NATIVE"

rust-build/pre_build_rust_keylock_android.sh

@@ -75,10 +75,10 @@ export ANDROID_NDK_ROOT=${ANDROID_NDK}
 
 cd $BASEDIR/tools
 
-curl -O https://www.openssl.org/source/openssl-1.1.0j.tar.gz
-tar xzf openssl-1.1.0j.tar.gz
+curl -O https://www.openssl.org/source/openssl-1.1.0g.tar.gz
+tar xzf openssl-1.1.0g.tar.gz
 
-export OPENSSL_SRC_DIR=$BASEDIR/tools/openssl-1.1.0j
+export OPENSSL_SRC_DIR=$BASEDIR/tools/openssl-1.1.0g
 
 # Delete the mandroid flag as clang does not recognize it
 sed -i 's/-mandroid //g' ${OPENSSL_SRC_DIR}/Configurations/10-main.conf