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In the Java Hotspot VM (default since JDK 1.2), System.gc() forces an explicit garbage collection. Such calls can be buried deep within libraries, so they may be difficult to trace. To ignore the call in such cases, use the flag -XX:+DisableExplicitGC. To avoid long pauses while performing a full GC, a less demanding concurrent cycle may be invoked by specifying the flag -XX:ExplicitGCInvokedConcurrent.
Exceptions
OBJ11OBJ15-EX1: When an application goes through several phases such as an initialization and a ready phase, it could require heap compaction between phases. Given an uneventful period, System.gc() may be invoked in such cases, provided that there is a suitable uneventful period between phases.
OBJ11OBJ15-EX2: System.gc() may be invoked as a last resort in a catch block that is attempting to recover from an OutOfMemoryError.
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Rule | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
OBJ11 OBJ15-J | low | likely | high | P3 | L3 |
Related Vulnerabilities
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