#fixed code
                                @Test
    public void testMultipleInsAreTrimmed() throws Exception {
        ForLoopStatement statement = transformer.transform(" in   in in ");
        ListForLoopStatement listForLoopStatement  = validateListForLoopStatement(statement);
        Assert.assertEquals("in", listForLoopStatement.getCollectionExpression());
    }
#vulnerable code 
                                @Test
    public void testMultipleInsAreTrimmed() throws Exception {
        ForLoopStatement statement = transformer.transform(" in   in in ");
        Assert.assertEquals("in", statement.getVarName());
        Assert.assertEquals("in", statement.getCollectionExpression());
    } 
                            #location 4 
                            #vulnerability type NULL_DEREFERENCE