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2 cards from this section. Quick, good the night before a test.
What is Metaspace used for in Java 8 and beyond?
Think about what replaced PermGen.
How does Metaspace improve performance compared to PermGen?
Compare it with the fixed size of PermGen.
What does Metaspace replace in Java 8?
Consider older memory management structures.
Does Metaspace use heap memory?
Think about what it was designed to overcome.
A Java application experiences frequent OutOfMemoryErrors when dealing with dynamic class loading. Analyze how switching to Metaspace could alleviate this problem and what steps the developer should take.
Consider the advantages of flexibility and efficiency.
Assume you are tasked with optimizing a Java application that uses many third-party libraries. Discuss how Metaspace can help, including practical configurations you might suggest.
Focus on how class behavior impacts memory requirements.
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