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Jonathan,
So, ConnectionPool.getProxyConstructor definitely makes a decision
about what interfaces to expose when generating a proxy for a
PooledConnection (sorry for the word-wrapping):
public Constructor<?> getProxyConstructor(boolean xa) throws
NoSuchMethodException {
//cache the constructor
if (proxyClassConstructor == null ) {
Class<?> proxyClass = xa ?
Proxy.getProxyClass(ConnectionPool.class.getClassLoader(), new Class[]
{java.sql.Connection.class,javax.sql.PooledConnection.class,
javax.sql.XAConnection.class}) :
Proxy.getProxyClass(ConnectionPool.class.getClassLoader(), new Class[]
{java.sql.Connection.class,javax.sql.PooledConnection.class});
proxyClassConstructor = proxyClass.getConstructor(new
Class[] { InvocationHandler.class });
}
return proxyClassConstructor;
}
This error:
On 3/8/12 9:53 AM, Christopher Schultz wrote:
>
>> Caused by: java.lang.ClassCastException: $Proxy5 cannot be cast
>> to org.apache.tomcat.jdbc.pool.PooledConnection at
>> org.apache.tomcat.jdbc.pool.DataSourceProxy.getPooledConnection(DataSourceProxy.java:156)
>>
>>
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
... looks like it's probably a bug somewhere. I checked the code in
trunk, and nowhere does DataSourceProxy cast anything to
org.apache.tomcat.jdbc.pool.PooledConnection. What version of Tomcat 7
are you using?
It looks like the DataSource must be configured with XA connections
enabled, so this error:
>> Caused by: java.sql.SQLException: Connection from pool does not
>> implement javax.sql.XAConnection at
>> org.apache.tomcat.jdbc.pool.DataSourceProxy.getXAConnection(DataSourceProxy.java:134)
...is
>>
probably due to a misconfiguration. Please double-check that you
have XA enabled in your DataSource.
- -chris
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