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release resources in COSDocument #460

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release resources in COSDocument #460

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6 changes: 6 additions & 0 deletions pdfbox/src/main/java/org/apache/pdfbox/cos/COSDocument.java
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Original file line number Diff line number Diff line change
Expand Up @@ -485,6 +485,12 @@ public void close() throws IOException
}
closed = true;

// Release large data structures immediately so the GC can reclaim memory
// even if callers hold a reference to this COSDocument instance.
objectPool.clear();
xrefTable.clear();
trailer = null;

// rethrow first exception to keep method contract
if (firstException != null)
{
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