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if [ -n "$IDEA_JDK" -a -x "$IDEA_JDK/bin/java" ]; then
  JDK="$IDEA_JDK"
elif [ -s "$HOME/.IntelliJIdea2016.3/config/idea.jdk" ]; then
  JDK=`"$CAT" $HOME/.IntelliJIdea2016.3/config/idea.jdk`
  if [ ! -d "$JDK" ]; then
    JDK="$IDE_HOME/$JDK"
  fi
elif [ -x "$IDE_HOME/jre/jre/bin/java" ] && "$IDE_HOME/jre/jre/bin/java" -version > /dev/null 2>&1 ; then
  JDK="$IDE_HOME/jre"
elif [ -n "$JDK_HOME" -a -x "$JDK_HOME/bin/java" ]; then
  JDK="$JDK_HOME"
elif [ -n "$JAVA_HOME" -a -x "$JAVA_HOME/bin/java" ]; then
  JDK="$JAVA_HOME"

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if [ -x "$IDE_HOME/jre/jre/bin/java" ] && "$IDE_HOME/jre/jre/bin/java" -version > /dev/null 2>&1 ; then
  JDK="$IDE_HOME/jre"
elif [ -n "$JDK_HOME" -a -x "$JDK_HOME/bin/java" ]; then
  JDK="$JDK_HOME"
elif [ -n "$JAVA_HOME" -a -x "$JAVA_HOME/bin/java" ]; then
  JDK="$JAVA_HOME"