Category: Java

People are generally prescribing something like this to configure maxFormContentSize for jetty in the jetty.xml:

<Configure id="Server" class="org.eclipse.jetty.server.Server">
	...
    <Call name="setAttribute">
        <Arg>org.eclipse.jetty.server.Request.maxFormContentSize</Arg>
        <Arg>10000000</Arg>
    </Call>
</Configure>

In my experience, in 2024 with a recent version of jetty (9.4.53), this isn’t working inside apache’s karaf or in embedded mode within maven, and may not be working in other containers as well.

Continue reading Jetty maxFormContentSizeJetty not working? Here’s the fix

In Wicket 7.12.0, adding a DebugBar to your page will result in an empty / useless debug bar if you don’t add a DebugBarInitializer to your app. Hopefully this will be documented by the wicket project in the future, but it isn’t right now.

Continue reading Wicket 7 Debug Bar Empty? Add a DebugBarInitializer to your app.

Java’s HashMap (AbstractMap really) hashCode() implementation sums the hash codes of its entries rather than multiplies them by a prime number like String.hashCode() does. This can cause weird collisions in very similar maps.

Continue reading Java HashMap.hashCode() Not Unique With String Keys And Values