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https://issues.apache.org/jira/browse/JOHNZON-215?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jörg Sautter updated JOHNZON-215:
---------------------------------
Description:
We try to use the JsonReader to read a Reader based on a channel holding an
exclusive file lock and later on we truncate the channel, write the content and
close the channel / release the lock.
As soon as we call JsonReader.readObject() the reader and the channel is closed
and the file locks are gone. This should - from our point of view - not happen
at this point, only a explicit call to .close() should close the underlying
resources.
This is a code snippet to reproduce the issue:
{{StringReader sr = new StringReader("{}");}}
{{Reader wrapper = new Reader() {}}
{{@Override}}
{{public int read(char[] cbuf, int off, int len) throws IOException{}}
{{return sr.read(cbuf, off, len);}}
{{}}}
{{@Override}}
{{public void close() throws IOException{}}
{{throw new UnsupportedOperationException("someone closed the stream!");}}
{{}}}
{{};}}
{{Json.createReader(wrapper).readObject();}}
was:
We try to use the JsonReader to read a Reader based on a channel holding an
exclusive file lock and later on we truncate the channel, write the content and
close the channel / release the lock.
As soon as we call JsonReader.readObject() the reader and the channel is closed
and the file locks are gone. This should - from our point of view - not happen
at this point, only a explicit call to .close() should close the underlying
resources.
This is a code snippet to reproduce the issue:
{{StringReader sr = new StringReader("{}");}}
{{Reader wrapper = new Reader() {}}
{{@Override}}
{{public int read(char[] cbuf, int off, int len) throws IOException}}{{{}}
{{return sr.read(cbuf, off, len);}}
{{}}}
{{@Override}}
{{public void close() throws IOException}}{{{}}
{{throw new UnsupportedOperationException("someone closed the stream!");}}
{{}}}
{{};}}
{{Json.createReader(wrapper).readObject();}}
> JsonReader.readObject() calls Reader.close()
> --------------------------------------------
>
> Key: JOHNZON-215
> URL: https://issues.apache.org/jira/browse/JOHNZON-215
> Project: Johnzon
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.1.12
> Reporter: Jörg Sautter
> Priority: Major
>
> We try to use the JsonReader to read a Reader based on a channel holding an
> exclusive file lock and later on we truncate the channel, write the content
> and close the channel / release the lock.
> As soon as we call JsonReader.readObject() the reader and the channel is
> closed and the file locks are gone. This should - from our point of view -
> not happen at this point, only a explicit call to .close() should close the
> underlying resources.
> This is a code snippet to reproduce the issue:
> {{StringReader sr = new StringReader("{}");}}
> {{Reader wrapper = new Reader() {}}
> {{@Override}}
> {{public int read(char[] cbuf, int off, int len) throws IOException{}}
> {{return sr.read(cbuf, off, len);}}
> {{}}}
> {{@Override}}
> {{public void close() throws IOException{}}
> {{throw new UnsupportedOperationException("someone closed the stream!");}}
> {{}}}
> {{};}}
> {{Json.createReader(wrapper).readObject();}}
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