JProfiler
YourKit Java Profiler
SAP Memory Analyzer
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/Java/Java+Memory+Analysis
Apache JMeter
JRockit Mission Control
Samurai
jvisualvm in Sun JDK 1.6.0_05^
jconsole in Sun JDK 1.5.0
WebLogic Portal Support Training
http://stddrwiki.us.oracle.com:7778/twiki/bin/view/ApplicationServer/OWLPSupportTraining