added "contentLength()" method to Resource abstraction; URL-based Resource variants introspect "last-modified" and "content-length" response headers (SPR-5465); refined "exists()" check for UrlResource (HEAD request) and ClassPathResource (URL resolution)

Also change 'JEE' -> 'Java EE'

It's not clear why the asterisk would be necessary, as 'lastName'
alone should match all errors associated with that field.

Note that SPR-7433 has also been created to consider removing this
chapter entirely.

Typo on the name of the @Autowired annotation:  @Autowire -> @Autowired
Usage of the @Value annotation: ${jdbcProperties.url} -> ${jdbc.url} (inside section "Declaring @Configuration classes as plain Spring <bean/> elements").

JaxWsPortProxyFactoryBean takes "wsdlDocumentUrl", "namespaceUri" etc defaults from @webservice (SPR-7412)

fixed concurrency issue in TypedStringValue, showing for nested typed Maps in prototype beans (SPR-7398); optimized building of keyed arg names in BeanDefinitionValueResolver

SPR-7116 further work in progress.  Added white-listing by media type, checking MIME type from the ServletContext, and some additional validations.

TaskExecutorFactoryBean (as used by task:executor) exposes full ThreadPoolTaskExecutor type (SPR-7403)

SPR-7116 work in progress.  ResourceHttpRequestHandler is now functionally equivalent to the Spring JS ResourceServlet, with the exception of the resource concatenation feature (which will be deferred for reconsideration in 3.1).