It is necessary to set MAX_CAPACITY to ArrayTernaryTrie/ArrayTrie

[tinswzy]

Jetty version(s)
9.3+, 9.4+

Java version/vendor (use: java -version)
All

OS type/version
All

Description
It is necessary to backport MAX_CAPACITY bugfix to ArrayTernaryTrie/ArrayTrie，as there are still many mainstream projects using jetty9.x.
In 9.x, the ContextHandlerCollection uses the ArrayTernaryTrie data structure by default. The data types of _rows&_tree in ArrayTernaryTrie are char/char[]. Their capacity is limited, otherwise routing bugs will occur if the value is exceeded.

How to reproduce?
@test
public void testArrayTernaryTrieBug() throws Exception
{
Trie trie = new ArrayTernaryTrie<>(false,400000);

// put root path
boolean success = trie.put("","/");
assertTrue(success);
String bestUrl = trie.get("/",1,0);
assertEquals("/",bestUrl);

// put a large path or many paths
char[] c1 = new char[65535];
Arrays.fill(c1,'a');
success = trie.put(new String(c1),"/"+new String(c1));
// expect put failed, but now it success
assertFalse(success);

bestUrl = trie.get("/",1,0);
assertEquals("/",bestUrl);

}

[sbordet]

Fixed by #7405.