Fix java error on travis

Author: nmalaguti

tests/environment/testenv.py

@@ -47,14 +47,17 @@
     print('General environment test succeeded.')
 
 # Ensures that the environment can run a basic game where a bot wins. Confirm that the bot expected to win does indeed win.
-splines = subprocess.Popen('../../environment/halite -d "10 10" -q "../../airesources/C++/MyBot" "cd ../../airesources/Java; java MyBot" "python3 ../../airesources/Python/MyBot.py" "../../airesources/Rust/target/release/MyBot" -s 1000', stdout=subprocess.PIPE, shell = True).stdout.read().decode('utf-8').split('\n')
+splines = subprocess.Popen('../../environment/halite -d "10 10" -q "../../airesources/C++/MyBot" "java -cp ../../airesources/Java MyBot" "python3 ../../airesources/Python/MyBot.py" "../../airesources/Rust/target/release/MyBot" -s 1000', stdout=subprocess.PIPE, shell = True).stdout.read().decode('utf-8').split('\n')
 if splines[9] != " " or splines[10] != " ":
     print('Starter package test failed. Environment output:\n#######################################################')
     print('\n'.join(splines) + '\n#######################################################')
     isGood = False
 else:
     print('Starter package test succeeded.')
 
+splines = subprocess.Popen('cat *.log', stdout=subprocess.PIPE, shell = True).stdout.read().decode('utf-8').split('\n')
+print('\n'.join(splines))
+
 # Ensures that tie evaluation is correct. Confirm that the bot expected to win does indeed win.
 tielines = subprocess.Popen('../../environment/halite -d "10 10" -q "python3 ModBot.py" "python3 ModBot.py" -s 998', stdout=subprocess.PIPE, shell = True).stdout.read().decode('utf-8').split('\n')
 if tielines[3].split()[1] != "2" or tielines[4].split()[1] != "1" or tielines[5] != " " or tielines[6] != " ":

tests/install.sh

@@ -2,13 +2,13 @@ add-apt-repository -y ppa:ubuntu-toolchain-r/test
 apt-get update
 
 # Python
-apt-get install -y python3 
+apt-get install -y python3
 
 # Java
-apt-get install -y openjdk-7-jdk libjansi-java
+apt-get install -y openjdk-8-jdk libjansi-java
 
 # Rust
-curl -sSf https://static.rust-lang.org/rustup.sh | sh 
+curl -sSf https://static.rust-lang.org/rustup.sh | sh
 
 # C++
 apt-get install -y g++-4.9
@@ -32,3 +32,10 @@ mv phpunit.phar /usr/local/bin/phpunit
 php -v
 mysql -V
 phpunit --version
+
+update-alternatives --set java $(update-alternatives --list java | grep java-8-openjdk)
+update-alternatives --set javac $(update-alternatives --list javac | grep java-8-openjdk)
+update-alternatives --display java
+update-alternatives --display javac
+java -version
+javac -version