Enrol to start learning
Reading is open to everyone. Enrolling is free, and it is what unlocks the audio lessons, practice tests and progress tracking.
28.9. Common JVM Pitfalls
This section
Practice test
12 questions on this section. Wrong answers show you what to read again.
Sign up to take itWhole chapter
Revision test
Mixed questions from across the chapter. Your answers get marked.
Sign up to take itQuick
Flashcard drill
4 cards from this lesson. Good the night before a test.
Try these first
- 1.
What is a memory leak?
Hint
Think about garbage collection.
- 2.
What does OutOfMemoryError indicate?
Hint
Consider what happens when all heap space is used.
- 3.
What causes a memory leak in JVM?
- Retaining object references
- Using too many threads
- Overloading methods
Hint
Think about what prevents cleanup.
- 4.
OutOfMemoryError can occur when which of the following is true?
- True
- False
Hint
Consider memory limitations.
- 5.
Identify and discuss a real-world scenario where a memory leak could severely affect an application’s performance.
Hint
Think about user session management.
- 6.
How might you design a recursive function to prevent StackOverflowError while still achieving the desired outcome?
Hint
Consider the base cases.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
2 more questions available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting