Aaron Stewart created PDFBOX-1390:
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Summary: Is COSNumber mutable or immutable?
Key: PDFBOX-1390
URL: https://issues.apache.org/jira/browse/PDFBOX-1390
Project: PDFBox
Issue Type: Bug
Components: PDModel
Affects Versions: 1.7.0
Reporter: Aaron Stewart
Priority: Minor
I'm writing code to clone a PDPage as a deep copy. I'm trying to decide which
objects are mutable and which are immutable.
COSInteger is confusing. It has a factory method, which suggests there is some
internal caching going on, but it also has a setValue() method. Caching makes
sense for immutable objects. If it is caching values, then setValue() should
probably be deprecated or removed.
* * *
Proposed JUnit code:
COSInteger original = COSInteger.get(1);
COSInteger copy = COSInteger.get(1);
copy.setValue(5);
assertEquals(1L, original.longValue());
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