Incorrect syntax highlighting for block comments

In some cases, block comments in the submission don't seem to get correct syntax highlighting. In the following piece of Java code, only the first /* was shown in the gray color for comments. The rest was shown in the usual text color, without any other highlighting.

    /*
for(int i =0; i < a.length; i++){
    for(int j=i+1; j< a.lenth; j++){
        if( a[i] == a[j] ){
            return a[i];
        }
    }
}
return -1;
*/