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Posted to dev@jena.apache.org by "Hugh Williams (JIRA)" <ji...@apache.org> on 2016/01/14 11:44:39 UTC

[jira] [Updated] (JENA-1116) Does Jena 2.7.x support compressed chunked results from SPARQL endpoints

     [ https://issues.apache.org/jira/browse/JENA-1116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hugh Williams updated JENA-1116:
--------------------------------
    Description: 
Consider the following sample code:

$ cat VirtuosoTestMalformedInput.java

import com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP;

/**
 * Created by kosterar on 2015-11-25.
 */
public class VirtuosoTestMalformedInput {

    public static final String SPARQL_ENDPOINT =
"http://demo.openlinksw.com/sparql";

    public static final String QUERY = "SELECT ?p where { <${s}> ?p ?o.}";

    public static void main(String... args) {
        test();
    }

    public static void test() {

        final QueryEngineHTTP queryEngine = new
QueryEngineHTTP(SPARQL_ENDPOINT, QUERY);
        queryEngine.execSelect();
    }
}
$

Which queries a Virtuoso SPARQL endpoint with a deliberate bad query, expected to return a Virtuoso error. The Virtuoso SPARQL endpoint sends results in compressed (gzipped) chunks by default (EnabledGzipContent = 1 set in the HTTP Server section of the Virtuoso config file by default).

When the above query is run one expects the error "SP030 SPARQL compiler, line 0: Bad character '$' (0x24)
in SPARQL expression at '$'" to be returned:

$ curl -g -H 'Accept:
application/json'
'http://demo.openinksw.com/sparql?query=SELECT%20%3Fp%20where%20%7B%20%3C%24%7Bs%7D%3E%20%3Fp%20%3Fo.%7D'
Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '$' (0x24)
in SPARQL expression at '$'

SPARQL query:
define sql:big-data-const 0 SELECT ?p where { <${s}> ?p ?o.}
$

but instead Jena gives the error:

$ javac -classpath
".:../apache-jena-2.7.4/lib/commons-codec-1.5.jar:../apache-jena-2.7.4/lib/httpclient-4.1.2.jar:../apache-jena-2.7.4/lib/httpcore-4.1.3.jar:../apache-jena-2.7.4/lib/jcl-over-slf4j-1.6.4.jar:../apache-jena-2.7.4/lib/jena-arq-2.9.4.jar:../apache-jena-2.7.4/lib/jena-core-2.7.4.jar:../apache-jena-2.7.4/lib/jena-iri-0.9.4.jar:../apache-jena-2.7.4/lib/jena-tdb-0.9.4.jar:../apache-jena-2.7.4/lib/log4j-1.2.16.jar:../apache-jena-2.7.4/lib/slf4j-api-1.6.4.jar:../apache-jena-2.7.4/lib/slf4j-log4j12-1.6.4.jar:../apache-jena-2.7.4/lib/xercesImpl-2.10.0.jar:../apache-jena-2.7.4/lib/xml-apis-1.4.01.jar"
VirtuosoTestMalformedInput.java 
$ java -classpath
".:../apache-jena-2.7.4/lib/commons-codec-1.5.jar:../apache-jena-2.7.4/lib/httpclient-4.1.2.jar:../apache-jena-2.7.4/lib/httpcore-4.1.3.jar:../apache-jena-2.7.4/lib/jcl-over-slf4j-1.6.4.jar:../apache-jena-2.7.4/lib/jena-arq-2.9.4.jar:../apache-jena-2.7.4/lib/jena-core-2.7.4.jar:../apache-jena-2.7.4/lib/jena-iri-0.9.4.jar:../apache-jena-2.7.4/lib/jena-tdb-0.9.4.jar:../apache-jena-2.7.4/lib/log4j-1.2.16.jar:../apache-jena-2.7.4/lib/slf4j-api-1.6.4.jar:../apache-jena-2.7.4/lib/slf4j-log4j12-1.6.4.jar:../apache-jena-2.7.4/lib/xercesImpl-2.10.0.jar:../apache-jena-2.7.4/lib/xml-apis-1.4.01.jar"
VirtuosoTestMalformedInput
log4j:WARN No appenders could be found for logger
(com.hp.hpl.jena.sparql.mgt.ARQMgt).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" HttpException:
java.nio.charset.MalformedInputException: Input length = 1:
java.nio.charset.MalformedInputException: Input length = 1
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:520)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:289)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:240)
        at
com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:213)
        at VirtuosoTestMalformedInput.test(VirtuosoTestMalformedInput.java:21)
        at VirtuosoTestMalformedInput.main(VirtuosoTestMalformedInput.java:15)
Caused by: java.nio.charset.MalformedInputException: Input length = 1
        at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
        at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
        at java.io.InputStreamReader.read(InputStreamReader.java:184)
        at java.io.BufferedReader.read1(BufferedReader.java:210)
        at java.io.BufferedReader.read(BufferedReader.java:286)
        at java.io.Reader.read(Reader.java:140)
        at
com.hp.hpl.jena.util.FileUtils.readWholeFileAsUTF8(FileUtils.java:460)
        at
com.hp.hpl.jena.util.FileUtils.readWholeFileAsUTF8(FileUtils.java:444)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:433)
        ... 5 more
$

Whereas if I set EnabledGzipContent = 0 set in Virtuoso INI file the expected error is returned:

$ java -classpath
".:../apache-jena-2.7.4/lib/commons-codec-1.5.jar:../apache-jena-2.7.4/lib/httpclient-4.1.2.jar:../apache-jena-2.7.4/lib/httpcore-4.1.3.jar:../apache-jena-2.7.4/lib/jcl-over-slf4j-1.6.4.jar:../apache-jena-2.7.4/lib/jena-arq-2.9.4.jar:../apache-jena-2.7.4/lib/jena-core-2.7.4.jar:../apache-jena-2.7.4/lib/jena-iri-0.9.4.jar:../apache-jena-2.7.4/lib/jena-tdb-0.9.4.jar:../apache-jena-2.7.4/lib/log4j-1.2.16.jar:../apache-jena-2.7.4/lib/slf4j-api-1.6.4.jar:../apache-jena-2.7.4/lib/slf4j-log4j12-1.6.4.jar:../apache-jena-2.7.4/lib/xercesImpl-2.10.0.jar:../apache-jena-2.7.4/lib/xml-apis-1.4.01.jar"
VirtuosoTestMalformedInput
log4j:WARN No appenders could be found for logger
(com.hp.hpl.jena.sparql.mgt.ARQMgt).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" HttpException: 400 Bad Request
Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '$' (0x24)
in SPARQL expression at '$'

SPARQL query:
SELECT ?p where { <${s}> ?p ?o.}
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:434)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:289)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:240)
        at
com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:213)
        at VirtuosoTestMalformedInput.test(VirtuosoTestMalformedInput.java:21)
        at VirtuosoTestMalformedInput.main(VirtuosoTestMalformedInput.java:15)
$

Hence the question as to whether Jena 2.7x supports compressed chunked data or is this possibly a bug ?

  was:
Consider the following sample code:

$ cat VirtuosoTestMalformedInput.java

import com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP;

/**
 * Created by kosterar on 2015-11-25.
 */
public class VirtuosoTestMalformedInput {

    public static final String SPARQL_ENDPOINT =
"http://demo.openlinksw.com/sparql";

    public static final String QUERY = "SELECT ?p where { <${s}> ?p ?o.}";

    public static void main(String... args) {
        test();
    }

    public static void test() {

        final QueryEngineHTTP queryEngine = new
QueryEngineHTTP(SPARQL_ENDPOINT, QUERY);
        queryEngine.execSelect();
    }
}
$

Which queries a Virtuoso SPARQL endpoint with a deliberate bad query. The Virtuoso SPARQL endpoint sends result in compressed (gzipped) chunks by default (EnabledGzipContent = 1 set in the HTTP Server section of the Virtuoso config file by default).

When the about query is run one expects the error "SP030 SPARQL compiler, line 0: Bad character '$' (0x24)
in SPARQL expression at '$'" to be returned:

$ curl -g -H 'Accept:
application/json'
'http://demo.openinksw.com/sparql?query=SELECT%20%3Fp%20where%20%7B%20%3C%24%7Bs%7D%3E%20%3Fp%20%3Fo.%7D'
Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '$' (0x24)
in SPARQL expression at '$'

SPARQL query:
define sql:big-data-const 0 SELECT ?p where { <${s}> ?p ?o.}
$

but instead Jena gives the error:

$ javac -classpath
".:../apache-jena-2.7.4/lib/commons-codec-1.5.jar:../apache-jena-2.7.4/lib/httpclient-4.1.2.jar:../apache-jena-2.7.4/lib/httpcore-4.1.3.jar:../apache-jena-2.7.4/lib/jcl-over-slf4j-1.6.4.jar:../apache-jena-2.7.4/lib/jena-arq-2.9.4.jar:../apache-jena-2.7.4/lib/jena-core-2.7.4.jar:../apache-jena-2.7.4/lib/jena-iri-0.9.4.jar:../apache-jena-2.7.4/lib/jena-tdb-0.9.4.jar:../apache-jena-2.7.4/lib/log4j-1.2.16.jar:../apache-jena-2.7.4/lib/slf4j-api-1.6.4.jar:../apache-jena-2.7.4/lib/slf4j-log4j12-1.6.4.jar:../apache-jena-2.7.4/lib/xercesImpl-2.10.0.jar:../apache-jena-2.7.4/lib/xml-apis-1.4.01.jar"
VirtuosoTestMalformedInput.java 
$ java -classpath
".:../apache-jena-2.7.4/lib/commons-codec-1.5.jar:../apache-jena-2.7.4/lib/httpclient-4.1.2.jar:../apache-jena-2.7.4/lib/httpcore-4.1.3.jar:../apache-jena-2.7.4/lib/jcl-over-slf4j-1.6.4.jar:../apache-jena-2.7.4/lib/jena-arq-2.9.4.jar:../apache-jena-2.7.4/lib/jena-core-2.7.4.jar:../apache-jena-2.7.4/lib/jena-iri-0.9.4.jar:../apache-jena-2.7.4/lib/jena-tdb-0.9.4.jar:../apache-jena-2.7.4/lib/log4j-1.2.16.jar:../apache-jena-2.7.4/lib/slf4j-api-1.6.4.jar:../apache-jena-2.7.4/lib/slf4j-log4j12-1.6.4.jar:../apache-jena-2.7.4/lib/xercesImpl-2.10.0.jar:../apache-jena-2.7.4/lib/xml-apis-1.4.01.jar"
VirtuosoTestMalformedInput
log4j:WARN No appenders could be found for logger
(com.hp.hpl.jena.sparql.mgt.ARQMgt).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" HttpException:
java.nio.charset.MalformedInputException: Input length = 1:
java.nio.charset.MalformedInputException: Input length = 1
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:520)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:289)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:240)
        at
com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:213)
        at VirtuosoTestMalformedInput.test(VirtuosoTestMalformedInput.java:21)
        at VirtuosoTestMalformedInput.main(VirtuosoTestMalformedInput.java:15)
Caused by: java.nio.charset.MalformedInputException: Input length = 1
        at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
        at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
        at java.io.InputStreamReader.read(InputStreamReader.java:184)
        at java.io.BufferedReader.read1(BufferedReader.java:210)
        at java.io.BufferedReader.read(BufferedReader.java:286)
        at java.io.Reader.read(Reader.java:140)
        at
com.hp.hpl.jena.util.FileUtils.readWholeFileAsUTF8(FileUtils.java:460)
        at
com.hp.hpl.jena.util.FileUtils.readWholeFileAsUTF8(FileUtils.java:444)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:433)
        ... 5 more
$

Whereas if I set EnabledGzipContent = 0 set in Virtuoso INI file the expected error is returned:

$ java -classpath
".:../apache-jena-2.7.4/lib/commons-codec-1.5.jar:../apache-jena-2.7.4/lib/httpclient-4.1.2.jar:../apache-jena-2.7.4/lib/httpcore-4.1.3.jar:../apache-jena-2.7.4/lib/jcl-over-slf4j-1.6.4.jar:../apache-jena-2.7.4/lib/jena-arq-2.9.4.jar:../apache-jena-2.7.4/lib/jena-core-2.7.4.jar:../apache-jena-2.7.4/lib/jena-iri-0.9.4.jar:../apache-jena-2.7.4/lib/jena-tdb-0.9.4.jar:../apache-jena-2.7.4/lib/log4j-1.2.16.jar:../apache-jena-2.7.4/lib/slf4j-api-1.6.4.jar:../apache-jena-2.7.4/lib/slf4j-log4j12-1.6.4.jar:../apache-jena-2.7.4/lib/xercesImpl-2.10.0.jar:../apache-jena-2.7.4/lib/xml-apis-1.4.01.jar"
VirtuosoTestMalformedInput
log4j:WARN No appenders could be found for logger
(com.hp.hpl.jena.sparql.mgt.ARQMgt).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" HttpException: 400 Bad Request
Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '$' (0x24)
in SPARQL expression at '$'

SPARQL query:
SELECT ?p where { <${s}> ?p ?o.}
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:434)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:289)
        at
com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:240)
        at
com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:213)
        at VirtuosoTestMalformedInput.test(VirtuosoTestMalformedInput.java:21)
        at VirtuosoTestMalformedInput.main(VirtuosoTestMalformedInput.java:15)
$

Hence the question as to whether Jena 2.7x supports compress chunked data or is this possibly a bug ?


> Does Jena 2.7.x support  compressed chunked results from SPARQL endpoints
> -------------------------------------------------------------------------
>
>                 Key: JENA-1116
>                 URL: https://issues.apache.org/jira/browse/JENA-1116
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: Jena
>    Affects Versions: Jena 2.7.4
>         Environment: Any ...
>            Reporter: Hugh Williams
>
> Consider the following sample code:
> $ cat VirtuosoTestMalformedInput.java
> import com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP;
> /**
>  * Created by kosterar on 2015-11-25.
>  */
> public class VirtuosoTestMalformedInput {
>     public static final String SPARQL_ENDPOINT =
> "http://demo.openlinksw.com/sparql";
>     public static final String QUERY = "SELECT ?p where { <${s}> ?p ?o.}";
>     public static void main(String... args) {
>         test();
>     }
>     public static void test() {
>         final QueryEngineHTTP queryEngine = new
> QueryEngineHTTP(SPARQL_ENDPOINT, QUERY);
>         queryEngine.execSelect();
>     }
> }
> $
> Which queries a Virtuoso SPARQL endpoint with a deliberate bad query, expected to return a Virtuoso error. The Virtuoso SPARQL endpoint sends results in compressed (gzipped) chunks by default (EnabledGzipContent = 1 set in the HTTP Server section of the Virtuoso config file by default).
> When the above query is run one expects the error "SP030 SPARQL compiler, line 0: Bad character '$' (0x24)
> in SPARQL expression at '$'" to be returned:
> $ curl -g -H 'Accept:
> application/json'
> 'http://demo.openinksw.com/sparql?query=SELECT%20%3Fp%20where%20%7B%20%3C%24%7Bs%7D%3E%20%3Fp%20%3Fo.%7D'
> Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '$' (0x24)
> in SPARQL expression at '$'
> SPARQL query:
> define sql:big-data-const 0 SELECT ?p where { <${s}> ?p ?o.}
> $
> but instead Jena gives the error:
> $ javac -classpath
> ".:../apache-jena-2.7.4/lib/commons-codec-1.5.jar:../apache-jena-2.7.4/lib/httpclient-4.1.2.jar:../apache-jena-2.7.4/lib/httpcore-4.1.3.jar:../apache-jena-2.7.4/lib/jcl-over-slf4j-1.6.4.jar:../apache-jena-2.7.4/lib/jena-arq-2.9.4.jar:../apache-jena-2.7.4/lib/jena-core-2.7.4.jar:../apache-jena-2.7.4/lib/jena-iri-0.9.4.jar:../apache-jena-2.7.4/lib/jena-tdb-0.9.4.jar:../apache-jena-2.7.4/lib/log4j-1.2.16.jar:../apache-jena-2.7.4/lib/slf4j-api-1.6.4.jar:../apache-jena-2.7.4/lib/slf4j-log4j12-1.6.4.jar:../apache-jena-2.7.4/lib/xercesImpl-2.10.0.jar:../apache-jena-2.7.4/lib/xml-apis-1.4.01.jar"
> VirtuosoTestMalformedInput.java 
> $ java -classpath
> ".:../apache-jena-2.7.4/lib/commons-codec-1.5.jar:../apache-jena-2.7.4/lib/httpclient-4.1.2.jar:../apache-jena-2.7.4/lib/httpcore-4.1.3.jar:../apache-jena-2.7.4/lib/jcl-over-slf4j-1.6.4.jar:../apache-jena-2.7.4/lib/jena-arq-2.9.4.jar:../apache-jena-2.7.4/lib/jena-core-2.7.4.jar:../apache-jena-2.7.4/lib/jena-iri-0.9.4.jar:../apache-jena-2.7.4/lib/jena-tdb-0.9.4.jar:../apache-jena-2.7.4/lib/log4j-1.2.16.jar:../apache-jena-2.7.4/lib/slf4j-api-1.6.4.jar:../apache-jena-2.7.4/lib/slf4j-log4j12-1.6.4.jar:../apache-jena-2.7.4/lib/xercesImpl-2.10.0.jar:../apache-jena-2.7.4/lib/xml-apis-1.4.01.jar"
> VirtuosoTestMalformedInput
> log4j:WARN No appenders could be found for logger
> (com.hp.hpl.jena.sparql.mgt.ARQMgt).
> log4j:WARN Please initialize the log4j system properly.
> Exception in thread "main" HttpException:
> java.nio.charset.MalformedInputException: Input length = 1:
> java.nio.charset.MalformedInputException: Input length = 1
>         at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:520)
>         at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:289)
>         at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:240)
>         at
> com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:213)
>         at VirtuosoTestMalformedInput.test(VirtuosoTestMalformedInput.java:21)
>         at VirtuosoTestMalformedInput.main(VirtuosoTestMalformedInput.java:15)
> Caused by: java.nio.charset.MalformedInputException: Input length = 1
>         at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
>         at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
>         at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
>         at java.io.InputStreamReader.read(InputStreamReader.java:184)
>         at java.io.BufferedReader.read1(BufferedReader.java:210)
>         at java.io.BufferedReader.read(BufferedReader.java:286)
>         at java.io.Reader.read(Reader.java:140)
>         at
> com.hp.hpl.jena.util.FileUtils.readWholeFileAsUTF8(FileUtils.java:460)
>         at
> com.hp.hpl.jena.util.FileUtils.readWholeFileAsUTF8(FileUtils.java:444)
>         at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:433)
>         ... 5 more
> $
> Whereas if I set EnabledGzipContent = 0 set in Virtuoso INI file the expected error is returned:
> $ java -classpath
> ".:../apache-jena-2.7.4/lib/commons-codec-1.5.jar:../apache-jena-2.7.4/lib/httpclient-4.1.2.jar:../apache-jena-2.7.4/lib/httpcore-4.1.3.jar:../apache-jena-2.7.4/lib/jcl-over-slf4j-1.6.4.jar:../apache-jena-2.7.4/lib/jena-arq-2.9.4.jar:../apache-jena-2.7.4/lib/jena-core-2.7.4.jar:../apache-jena-2.7.4/lib/jena-iri-0.9.4.jar:../apache-jena-2.7.4/lib/jena-tdb-0.9.4.jar:../apache-jena-2.7.4/lib/log4j-1.2.16.jar:../apache-jena-2.7.4/lib/slf4j-api-1.6.4.jar:../apache-jena-2.7.4/lib/slf4j-log4j12-1.6.4.jar:../apache-jena-2.7.4/lib/xercesImpl-2.10.0.jar:../apache-jena-2.7.4/lib/xml-apis-1.4.01.jar"
> VirtuosoTestMalformedInput
> log4j:WARN No appenders could be found for logger
> (com.hp.hpl.jena.sparql.mgt.ARQMgt).
> log4j:WARN Please initialize the log4j system properly.
> Exception in thread "main" HttpException: 400 Bad Request
> Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '$' (0x24)
> in SPARQL expression at '$'
> SPARQL query:
> SELECT ?p where { <${s}> ?p ?o.}
>         at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:434)
>         at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:289)
>         at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:240)
>         at
> com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:213)
>         at VirtuosoTestMalformedInput.test(VirtuosoTestMalformedInput.java:21)
>         at VirtuosoTestMalformedInput.main(VirtuosoTestMalformedInput.java:15)
> $
> Hence the question as to whether Jena 2.7x supports compressed chunked data or is this possibly a bug ?



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