Zeljko Vukovic created CAMEL-11672:
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Summary: Input stream infinitive loop
Key: CAMEL-11672
URL: https://issues.apache.org/jira/browse/CAMEL-11672
Project: Camel
Issue Type: Bug
Components: camel-http
Affects Versions: 2.12.4
Environment: IBM Websphere Liberty Core 17.0.0.1
IBM Websphere Liberty Core 17.0.0.2
Reporter: Zeljko Vukovic
Priority: Critical
Dear Camel team,
While working on one integration we found issue related to camel-http component
when solution is deployed on IBM Liberty core.
Same issue is not reproducible on Jetty and Tomcat.
Issue is connected to the code in IOHelper and
CachedOutputStream$WrappedInputStream
We are using version 2.12.4 but I can see that same code is used also in latest
versions.
https://github.com/apache/camel/blob/camel-2.12.4/camel-core/src/main/java/org/apache/camel/util/IOHelper.java
Problematic part are lines 196, 198 and 204.
Basically stream reader which is used
org.apache.camel.converter.stream.CachedOutputStream$WrappedInputStream is not
returning -1 like response of read method if empty string is provided on input.
This is wrong by specification of InputReader interface.
// in the case there is input which is empty string
while ( -1 != n) {
…
int n = input.read(buffer); ---> this is never -1 if string is empty
"" already 0 and we have infinitive loop !!!
}
For our use case we have applied change in IOHelper to check and directly cover
if stream reader produce same (non-valid) response to not produce infinitive
loop.
If any questions around reproducing issue please let me know
Best regards,
Zeljko
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