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In this example, the program needs more memory on the heap than is available by default. In a server-class machine running either VM (client or server) with a parallel garbage collector, the default initial and maximum heap sizes are as follows for J2SE 56.0 \[1[[Sun 06|AA. Java References#Sun 06]\]: |
- initial heap size: larger of 1/64th of the machine's physical memory on the machine or some reasonable minimum
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In the case of the heap size being increased through the command line, the risk assessment would be as follows:
Rule | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
FIO37-J | low | probable | medium | P4 | L3 |
In the case of the database solution being used, the cost would increase to high due to the usage of a disk-based solution.
Rule | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
FIO37-J | low | probable | high | P2 | L3 |
Related Vulnerabilities
Search for vulnerabilities resulting from the violation of this rule on the CERT website
References
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\[\[1[Sun 06|AA. Java References#Sun 06]\] [Garbage Collection Ergonomics|http://java.sun.com/javase/6/docs/technotes/guides/vm/gc-ergonomics.html ], "Default values for the Initial and Maximum heap size" \[\[2[Sun 06|AA. Java References#Sun 06]\] [Non Standard Options for java: The Java application launcher|http://java.sun.com/javase/6/docs/technotes/tools/windows/java.html ], "Syntax for increasing the heap size" \[[Sun 03|AA. Java References#Sun 03]\] Chapter 5: Tuning the Java Runtime System, [Tuning the Java Heap|http://docs.sun.com/source/817-2180-10/pt_chap5.html#wp57027] \[[API 06|AA. Java References#API 06]\] Class ObjectInputStream and ObjectOutputStream \[[SDN 08|AA. Java References#SDN 08]\] [Serialization FAQ|http://java.sun.com/javase/technologies/core/basic/serializationFAQ.jsp] |
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