The Big Faceless Organization has released the Big Faceless Graph Library 1.1.5, a $400 payware (more if you want support) Java class library for plotting 2D or shaded 3D pie charts, line graphs, area graphs, bar graphs and exporting them to PNG, GIF and PDF. Java 1.2 or later is required.
ej-technologies GmbH has released version 2.4 of JProfiler, a $548 payware profiler based on the Java virtual machine profiling interface (JVMPI that can report on CPU usage, memory size, threads, and "VM telemetry" (whatever that is). Version 2.4 improves "allocation recording for the dynamic memory views. Memory profiling can now be switched on and off during a profiling session. This can save a lot of memory, makes memory leak detection easier and allows for a tighter focus on problem areas. A new method in the API has also been added for this feature."
Bodo Tasche has posted JCalendar 0.7, an open source calendar GUI widget for Java that "provides a ComboBox (JCalendarComboBox) for selecting a Date and a simple Panel (JCalendarPanel) for showing and editing a Date." This release fixes a few bugs. JCalendar is published under a BSD license.
The Ping Software Group has released version 1.4.3 of the Kiwi Toolkit, an open source (LGPL), Swing-based GUI class library that includes a TreeTable component, a DateChooser, an MVC charting package, a plugin framework, an application resource manager, and more. There's some useful stuff here. The obvious flaw is that it doesn't adhere to standard Java package naming conventions.