#vulnerable code 
                                public int jobs(final String uid) throws IOException {
        if (!this.exists(uid)) {
            throw new IllegalArgumentException(
                new Par("Person @%s doesn't exist").say(uid)
            );
        }
        try (final Item item = this.item()) {
            return new NumberOf(
                new Xocument(item.path()).xpath(
                    String.format(
                        "/people/person[@id='%s']/jobs/text()",
                        uid
                    ),
                    "0"
                )
            ).intValue();
        }
    } 
                            #location 4 
                            #vulnerability type RESOURCE_LEAK
#fixed code
                                public int jobs(final String uid) throws IOException {
        this.checkExisting(uid);
        try (final Item item = this.item()) {
            return new NumberOf(
                new Xocument(item.path()).xpath(
                    String.format(
                        "/people/person[@id='%s']/jobs/text()",
                        uid
                    ),
                    "0"
                )
            ).intValue();
        }
    }