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8366495: Incorrect minimum memory size allocated in allocateNativeInternal() #27027

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8366495: Incorrect minimum memory size allocated in allocateNativeInternal() #27027

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8bbef84
update min size to Long.BYTES
offamitkumar Sep 1, 2025
18c67d5
update
offamitkumar Sep 2, 2025
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5 changes: 3 additions & 2 deletions src/java.base/share/classes/jdk/internal/foreign/SegmentFactories.java
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Original file line number Diff line number Diff line change
Expand Up @@ -197,8 +197,9 @@ private static long allocateNativeInternal(long byteSize, long byteAlignment, Me
throw new OutOfMemoryError();
}
// Always allocate at least some memory so that zero-length segments have distinct
// non-zero addresses.
alignedSize = Math.max(1, alignedSize);
// non-zero addresses. If we are initializing the allocated memory, then use a minimum
// size of 8 because we init the memory with longs.
alignedSize = Math.max((init ? Long.BYTES : 1), alignedSize);

long allocationSize;
long allocationBase;
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