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Memory Leak Definition Memory leak occurs when dynamically allocated heap memory cannot be freed despite no longer being needed, causing resource waste. This leads to degraded performance and potential system crashes. Problematic Code Example public class HomeActivity extends AppCompatActivity { pri...

Symptom Tomcat fails to start or restarts with severe and warning messages about filters not initializing, JDBC drivers not being unregistered, and a lingering background thread called Abandoned connection cleanup thread. Example log excerpt: 02-Apr-2021 10:12:41.915 SEVERE [localhost-startStop-1] o...