Matt Hoffman created JENA-1920:
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Summary: BufferingWriter.java will flush the entirety of a char
array despite provided length.
Key: JENA-1920
URL: https://issues.apache.org/jira/browse/JENA-1920
Project: Apache Jena
Issue Type: Bug
Components: Base
Affects Versions: Jena 3.15.0
Reporter: Matt Hoffman
I observed that when the flushing a largeBlob the entirety of a char array will
be flushed out despite the length being provided indicating that only part of
the char array is populated.
The below unit test illustrates.
{code:java}
public void write_08 () {
String alpha =
"0123456789abcdefghijklmnopqrstuvwzyzABCDEFGHIJKLMNOPQRSTUVWZYZ";
Random r = new Random(); create(8192, 4096);
//initialized at the max
char[] randomChars = new char[8192];
//define just enough to make it a 'large blob'
for(int i = 0; i < 5000; i++){
randomChars[i] = alpha.charAt(r.nextInt(alpha.length()));
}
w.output(randomChars,0, 5000);
w.close();
String x = string();
assertEquals(5000, x.length());
}
{code}
Results in
{noformat}
[ERROR] write_08(org.apache.jena.atlas.io.TestBufferingWriter) Time elapsed:
0.001 s <<< FAILURE!
java.lang.AssertionError: expected:<5000> but was:<8192>
at
org.apache.jena.atlas.io.TestBufferingWriter.write_08(TestBufferingWriter.java:141){noformat}
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