fixes issue #254

Author: walterhiggins

src/main/js/modules/utils/utils.js

@@ -300,7 +300,12 @@ exports.getMousePos = function getMousePos( player ) {
     if ( !player.getTargetBlock ) {
       return null;
     }
-    targetedBlock = player.getTargetBlock( null, 5 );
+    try {
+      targetedBlock = player.getTargetBlock( null, 5 );
+    }catch (e){
+      // spigot 1.8.7 adds new overload which causes problems with JDK 7
+      targetedBlock = player['getTargetBlock(java.util.Set,int)'](null, 5 );
+    }
     if ( targetedBlock == null || targetedBlock.isEmpty() ) {
       return null;
     }