Mikhail Mazursky created LANG-990:
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Summary: Avoid String allocation in StrBuilder.append(CharSequence)
Key: LANG-990
URL: https://issues.apache.org/jira/browse/LANG-990
Project: Commons Lang
Issue Type: Improvement
Components: lang.text.*
Affects Versions: 3.3.1
Reporter: Mikhail Mazursky
StrBuilder.append(CharSequence) and StrBuilder.append(CharSequence, int, int)
can be optimized for the case when CharBuffer is passed. Current implementation
calls toString() method that allocates a new String. In case when
CharBuffer.hasArray() returns true the buffer-backing char array can be
accessed directly to copy chars from it.
Also an instanceOf StrBuilder check can be added to
StrBuilder.append(CharSequence) and StrBuilder.append(CharSequence, int, int)
to avoid toString() in that case too (StrBuilder can be passed as CharSequence
in some cases).
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