arturobernalg opened a new pull request, #1102:
URL: https://github.com/apache/tomcat/pull/1102

   Fixes https://bz.apache.org/bugzilla/show_bug.cgi?id=65929
   
   `ProxyConnection` did not handle `abort()`. The call reached the physical 
connection, but the pooled connection was never given back: it stayed busy, the 
proxy kept reporting it as open and the pool could be exhausted by aborted 
connections.
   
   This change treats `abort()` like `close()` in `ProxyConnection` and in 
`DisposableConnectionFacade`, but marks the pooled connection as discarded so 
that the pool releases it instead of handing it out again. Calling `abort()` on 
a closed connection does nothing, as required by `java.sql.Connection#abort`. A 
`JdbcInterceptor.ABORT_VAL` constant is added next to the other method names.
   
   `ConnectionAbortTest` covers the released slot, a new physical connection on 
the next borrow, `abort()` on a closed connection and the path without the 
disposable facade. Before the change the first three tests fail (`busy:1`, 
`PoolExhaustedException`, and `SQLException` on an already closed connection). 
The test driver's `abort()` was an empty stub and now closes the connection, as 
a real driver does.


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