Gizmo bug?

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I've just discovered the "Gizmo" utility and I'm really enjoying it, but I'=
m wondering if I've found a bug.

TLDR:=C2=A0 Some "delete" commands result in:
=20
Exception in thread "main" java.util.ConcurrentModificationException=C2=A0 =
=C2=A0 =C2=A0 =C2=A0 at java.base/java.util.ArrayList$Itr.checkForComodific=
ation(ArrayList.java:1043)=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.base/java.uti=
l.ArrayList$Itr.next(ArrayList.java:997)=C2=A0 =C2=A0 =C2=A0 =C2=A0 at net.=
sf.saxon.Gizmo.delete(Gizmo.java:439)=C2=A0 =C2=A0 =C2=A0 =C2=A0 at net.sf.=
saxon.Gizmo.executeCommands(Gizmo.java:304)=C2=A0 =C2=A0 =C2=A0 =C2=A0 at n=
et.sf.saxon.Gizmo.<init>(Gizmo.java:231)=C2=A0 =C2=A0 =C2=A0 =C2=A0 at net.=
sf.saxon.Gizmo.main(Gizmo.java:168)

...and dumping the user back to the OS prompt.

Specifically, it appears that the crash occurs when I use the syntax=C2=A0
=C2=A0 =C2=A0 delete //namespace:name

If I run the delete with the full path, or if I specify "//name" (i.e. with=
out the namespace) it works.
If the delete with the //namespace:name isn't supported, then I'd expect a =
warning rather than a crash.=C2=A0 But, perhaps I'm doing something wrong?
At any rate, thank you for Gizmo...it's been extremely useful just in the f=
ew days since I first discovered it.


More details:
I'm running on an Ubuntu 20.04 system.
$ java --versionopenjdk 11.0.11 2021-04-20OpenJDK Runtime Environment (buil=
d 11.0.11+9-Ubuntu-0ubuntu2.20.04)OpenJDK 64-Bit Server VM (build 11.0.11+9=
-Ubuntu-0ubuntu2.20.04, mixed mode, sharing)

A source XML document for reproducing the error can be downloaded from:=C2=
=A0=C2=A0http://cdm16002.contentdm.oclc.org/oai/oai.php?verb=3DListRecords&=
set=3Dp16002coll9&metadataPrefix=3Doai_qdc



In the following examples, I'm loading namespace info from a config file (/=
home/web/Saxon-HE/config-namespaces.txt) which contains the following:


namespace dc http://purl.org/dc/elements/1.1/namespace dcmitype http://purl=
.org/dc/dcmitype/namespace dcterms http://purl.org/dc/terms/namespace edm h=
ttp://www.europeana.eu/schemas/edm/namespace oai-pmh http://www.openarchive=
s.org/OAI/2.0/namespace oai_dc http://www.openarchives.org/OAI/2.0/oai_dc/n=
amespace oai_qdc http://worldcat.org/xmlschemas/qdc-1.0/



### Try 1:=C2=A0 Successful, because I delete specifying the full path, inc=
luding the namespace:
$ java net.sf.saxon.GizmoSaxon Gizmo 10.5/>call /home/web/Saxon-HE/config-n=
amespaces.txt/>load 1.xml/>pathsFound 27 items/OAI-PMH/OAI-PMH/responseDate=
/OAI-PMH/request/OAI-PMH/ListRecords/OAI-PMH/ListRecords/record/OAI-PMH/Lis=
tRecords/record/header/OAI-PMH/ListRecords/record/header/identifier/OAI-PMH=
/ListRecords/record/header/datestamp/OAI-PMH/ListRecords/record/header/setS=
pec/OAI-PMH/ListRecords/record/metadata/OAI-PMH/ListRecords/record/metadata=
/oai_qdc:qualifieddc/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifiedd=
c/dc:title/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:date/=
OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:contributor/OAI-=
PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:description/OAI-PMH/=
ListRecords/record/metadata/oai_qdc:qualifieddc/dc:subject/OAI-PMH/ListReco=
rds/record/metadata/oai_qdc:qualifieddc/dc:format/OAI-PMH/ListRecords/recor=
d/metadata/oai_qdc:qualifieddc/dc:type/OAI-PMH/ListRecords/record/metadata/=
oai_qdc:qualifieddc/dc:publisher/OAI-PMH/ListRecords/record/metadata/oai_qd=
c:qualifieddc/dc:language/OAI-PMH/ListRecords/record/metadata/oai_qdc:quali=
fieddc/dc:rights/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc=
terms:isPartOf/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dcte=
rms:extent/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:ident=
ifier/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:relation/O=
AI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dcterms:alternative/=
OAI-PMH/ListRecords/resumptionToken/>delete /OAI-PMH/ListRecords/record/met=
adata/oai_qdc:qualifieddc/dc:title/>pathsFound 26 items/OAI-PMH/OAI-PMH/res=
ponseDate/OAI-PMH/request/OAI-PMH/ListRecords/OAI-PMH/ListRecords/record/OA=
I-PMH/ListRecords/record/header/OAI-PMH/ListRecords/record/header/identifie=
r/OAI-PMH/ListRecords/record/header/datestamp/OAI-PMH/ListRecords/record/he=
ader/setSpec/OAI-PMH/ListRecords/record/metadata/OAI-PMH/ListRecords/record=
/metadata/oai_qdc:qualifieddc/OAI-PMH/ListRecords/record/metadata/oai_qdc:q=
ualifieddc/dc:date/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/=
dc:contributor/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:d=
escription/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:subje=
ct/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:format/OAI-PM=
H/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:type/OAI-PMH/ListRecor=
ds/record/metadata/oai_qdc:qualifieddc/dc:publisher/OAI-PMH/ListRecords/rec=
ord/metadata/oai_qdc:qualifieddc/dc:language/OAI-PMH/ListRecords/record/met=
adata/oai_qdc:qualifieddc/dc:rights/OAI-PMH/ListRecords/record/metadata/oai=
_qdc:qualifieddc/dcterms:isPartOf/OAI-PMH/ListRecords/record/metadata/oai_q=
dc:qualifieddc/dcterms:extent/OAI-PMH/ListRecords/record/metadata/oai_qdc:q=
ualifieddc/dc:identifier/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualif=
ieddc/dc:relation/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/d=
cterms:alternative/OAI-PMH/ListRecords/resumptionToken/>quitQuit without sa=
ving? (Y|N)/>y$


### Try 2:=C2=A0 Fails, the delete command kills the session when I attempt=
 to use //namespace:name
$ java net.sf.saxon.GizmoSaxon Gizmo 10.5/>call /home/web/Saxon-HE/config-n=
amespaces.txt/>load 1.xml/>delete //dc:titleException in thread "main" java=
.util.ConcurrentModificationException=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.ba=
se/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 at java.base/java.util.ArrayList$Itr.next(ArrayLis=
t.java:997)=C2=A0 =C2=A0 =C2=A0 =C2=A0 at net.sf.saxon.Gizmo.delete(Gizmo.j=
ava:439)=C2=A0 =C2=A0 =C2=A0 =C2=A0 at net.sf.saxon.Gizmo.executeCommands(G=
izmo.java:304)=C2=A0 =C2=A0 =C2=A0 =C2=A0 at net.sf.saxon.Gizmo.<init>(Gizm=
o.java:231)=C2=A0 =C2=A0 =C2=A0 =C2=A0 at net.sf.saxon.Gizmo.main(Gizmo.jav=
a:168)$


### Try 3:=C2=A0 Successful, because I specify the delete without referenci=
ng the namespace
$ java net.sf.saxon.GizmoSaxon Gizmo 10.5/>call /home/web/Saxon-HE/config-n=
amespaces.txt/>load 1.xml/>pathsFound 27 items/OAI-PMH/OAI-PMH/responseDate=
/OAI-PMH/request/OAI-PMH/ListRecords/OAI-PMH/ListRecords/record/OAI-PMH/Lis=
tRecords/record/header/OAI-PMH/ListRecords/record/header/identifier/OAI-PMH=
/ListRecords/record/header/datestamp/OAI-PMH/ListRecords/record/header/setS=
pec/OAI-PMH/ListRecords/record/metadata/OAI-PMH/ListRecords/record/metadata=
/oai_qdc:qualifieddc/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifiedd=
c/dc:title/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:date/=
OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:contributor/OAI-=
PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:description/OAI-PMH/=
ListRecords/record/metadata/oai_qdc:qualifieddc/dc:subject/OAI-PMH/ListReco=
rds/record/metadata/oai_qdc:qualifieddc/dc:format/OAI-PMH/ListRecords/recor=
d/metadata/oai_qdc:qualifieddc/dc:type/OAI-PMH/ListRecords/record/metadata/=
oai_qdc:qualifieddc/dc:publisher/OAI-PMH/ListRecords/record/metadata/oai_qd=
c:qualifieddc/dc:language/OAI-PMH/ListRecords/record/metadata/oai_qdc:quali=
fieddc/dc:rights/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc=
terms:isPartOf/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dcte=
rms:extent/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:ident=
ifier/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:relation/O=
AI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dcterms:alternative/=
OAI-PMH/ListRecords/resumptionToken/>delete //title/>pathsFound 26 items/OA=
I-PMH/OAI-PMH/responseDate/OAI-PMH/request/OAI-PMH/ListRecords/OAI-PMH/List=
Records/record/OAI-PMH/ListRecords/record/header/OAI-PMH/ListRecords/record=
/header/identifier/OAI-PMH/ListRecords/record/header/datestamp/OAI-PMH/List=
Records/record/header/setSpec/OAI-PMH/ListRecords/record/metadata/OAI-PMH/L=
istRecords/record/metadata/oai_qdc:qualifieddc/OAI-PMH/ListRecords/record/m=
etadata/oai_qdc:qualifieddc/dc:date/OAI-PMH/ListRecords/record/metadata/oai=
_qdc:qualifieddc/dc:contributor/OAI-PMH/ListRecords/record/metadata/oai_qdc=
:qualifieddc/dc:description/OAI-PMH/ListRecords/record/metadata/oai_qdc:qua=
lifieddc/dc:subject/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc=
/dc:format/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:type/=
OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:publisher/OAI-PM=
H/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:language/OAI-PMH/ListR=
ecords/record/metadata/oai_qdc:qualifieddc/dc:rights/OAI-PMH/ListRecords/re=
cord/metadata/oai_qdc:qualifieddc/dcterms:isPartOf/OAI-PMH/ListRecords/reco=
rd/metadata/oai_qdc:qualifieddc/dcterms:extent/OAI-PMH/ListRecords/record/m=
etadata/oai_qdc:qualifieddc/dc:identifier/OAI-PMH/ListRecords/record/metada=
ta/oai_qdc:qualifieddc/dc:relation/OAI-PMH/ListRecords/record/metadata/oai_=
qdc:qualifieddc/dcterms:alternative/OAI-PMH/ListRecords/resumptionToken/>
.



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<html><head></head><body><div class=3D"yahoo-style-wrap" style=3D"font-fami=
ly:times new roman, new york, times, serif;font-size:16px;"><div dir=3D"ltr=
" data-setdir=3D"false">I've just discovered the "Gizmo" utility and I'm re=
ally enjoying it, but I'm wondering if I've found a bug.<br></div><div dir=
=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"fa=
lse">TLDR:&nbsp; Some "delete" commands result in:</div><div dir=3D"ltr" da=
ta-setdir=3D"false"><br></div> <blockquote style=3D"margin: 0 0 0 40px; bor=
der: none; padding: 0px;"><div><div>Exception in thread "main" java.util.Co=
ncurrentModificationException</div></div><div><div>&nbsp; &nbsp; &nbsp; &nb=
sp; at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.j=
ava:1043)</div></div><div><div>&nbsp; &nbsp; &nbsp; &nbsp; at java.base/jav=
a.util.ArrayList$Itr.next(ArrayList.java:997)</div></div><div><div>&nbsp; &=
nbsp; &nbsp; &nbsp; at net.sf.saxon.Gizmo.delete(Gizmo.java:439)</div></div=
><div><div>&nbsp; &nbsp; &nbsp; &nbsp; at net.sf.saxon.Gizmo.executeCommand=
s(Gizmo.java:304)</div></div><div><div>&nbsp; &nbsp; &nbsp; &nbsp; at net.s=
f.saxon.Gizmo.&lt;init&gt;(Gizmo.java:231)</div></div><div><div>&nbsp; &nbs=
p; &nbsp; &nbsp; at net.sf.saxon.Gizmo.main(Gizmo.java:168)</div></div></bl=
ockquote><div><div><br></div></div><div dir=3D"ltr" data-setdir=3D"false">.=
..and dumping the user back to the OS prompt.<br></div><div dir=3D"ltr" dat=
a-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">Specifi=
cally, it appears that the crash occurs when I use the syntax&nbsp;</div><d=
iv dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=
=3D"false">&nbsp; &nbsp; delete //namespace:name<br></div><div dir=3D"ltr" =
data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">If I=
 run the delete with the full path, or if I specify "//name" (i.e. without =
the namespace) it works.</div><div dir=3D"ltr" data-setdir=3D"false"><br></=
div><div dir=3D"ltr" data-setdir=3D"false">If the delete with the //namespa=
ce:name isn't supported, then I'd expect a warning rather than a crash.&nbs=
p; But, perhaps I'm doing something wrong?</div><div dir=3D"ltr" data-setdi=
r=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">At any rate, t=
hank you for Gizmo...it's been extremely useful just in the few days since =
I first discovered it.</div><div dir=3D"ltr" data-setdir=3D"false"><br></di=
v><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-se=
tdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">More detail=
s:</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" d=
ata-setdir=3D"false">I'm running on an Ubuntu 20.04 system.</div><div dir=
=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"fa=
lse"><div><div>$ java --version</div><div>openjdk 11.0.11 2021-04-20</div><=
div>OpenJDK Runtime Environment (build 11.0.11+9-Ubuntu-0ubuntu2.20.04)</di=
v><div>OpenJDK 64-Bit Server VM (build 11.0.11+9-Ubuntu-0ubuntu2.20.04, mix=
ed mode, sharing)</div><div><br></div><div><br></div><div>A source XML docu=
ment for reproducing the error can be downloaded from:&nbsp;&nbsp;<a href=
=3D"http://cdm16002.contentdm.oclc.org/oai/oai.php?verb=3DListRecords&amp;s=
et=3Dp16002coll9&amp;metadataPrefix=3Doai_qdc" rel=3D"nofollow" target=3D"_=
blank">http://cdm16002.contentdm.oclc.org/oai/oai.php?verb=3DListRecords&am=
p;set=3Dp16002coll9&amp;metadataPrefix=3Doai_qdc</a><br></div></div></div><=
div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdi=
r=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div=
 dir=3D"ltr" data-setdir=3D"false">In the following examples, I'm loading n=
amespace info from a config file (/home/web/Saxon-HE/config-namespaces.txt)=
 which contains the following:<br></div><div dir=3D"ltr" data-setdir=3D"fal=
se"><br></div><blockquote style=3D"margin: 0 0 0 40px; border: none; paddin=
g: 0px;"><div dir=3D"ltr" data-setdir=3D"false"><div><div>namespace dc http=
://purl.org/dc/elements/1.1/</div></div></div><div dir=3D"ltr" data-setdir=
=3D"false"><div><div>namespace dcmitype http://purl.org/dc/dcmitype/</div><=
/div></div><div dir=3D"ltr" data-setdir=3D"false"><div><div>namespace dcter=
ms http://purl.org/dc/terms/</div></div></div><div dir=3D"ltr" data-setdir=
=3D"false"><div><div>namespace edm http://www.europeana.eu/schemas/edm/</di=
v></div></div><div dir=3D"ltr" data-setdir=3D"false"><div><div>namespace oa=
i-pmh http://www.openarchives.org/OAI/2.0/</div></div></div><div dir=3D"ltr=
" data-setdir=3D"false"><div><div>namespace oai_dc http://www.openarchives.=
org/OAI/2.0/oai_dc/</div></div></div><div dir=3D"ltr" data-setdir=3D"false"=
><div><div>namespace oai_qdc http://worldcat.org/xmlschemas/qdc-1.0/</div><=
/div></div></blockquote><div dir=3D"ltr" data-setdir=3D"false"><div><div><b=
r></div></div><div><br></div><div><br></div><div dir=3D"ltr" data-setdir=3D=
"false">### Try 1:&nbsp; Successful, because I delete specifying the full p=
ath, including the namespace:</div><div><br></div><div dir=3D"ltr" data-set=
dir=3D"false"><div><div>$ java net.sf.saxon.Gizmo</div><div>Saxon Gizmo 10.=
5</div><div>/&gt;call /home/web/Saxon-HE/config-namespaces.txt</div><div>/&=
gt;load 1.xml</div><div>/&gt;paths</div><div>Found 27 items</div><div>/OAI-=
PMH</div><div>/OAI-PMH/responseDate</div><div>/OAI-PMH/request</div><div>/O=
AI-PMH/ListRecords</div><div>/OAI-PMH/ListRecords/record</div><div>/OAI-PMH=
/ListRecords/record/header</div><div>/OAI-PMH/ListRecords/record/header/ide=
ntifier</div><div>/OAI-PMH/ListRecords/record/header/datestamp</div><div>/O=
AI-PMH/ListRecords/record/header/setSpec</div><div>/OAI-PMH/ListRecords/rec=
ord/metadata</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifi=
eddc</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:=
title</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc=
:date</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc=
:contributor</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifi=
eddc/dc:description</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:=
qualifieddc/dc:subject</div><div>/OAI-PMH/ListRecords/record/metadata/oai_q=
dc:qualifieddc/dc:format</div><div>/OAI-PMH/ListRecords/record/metadata/oai=
_qdc:qualifieddc/dc:type</div><div>/OAI-PMH/ListRecords/record/metadata/oai=
_qdc:qualifieddc/dc:publisher</div><div>/OAI-PMH/ListRecords/record/metadat=
a/oai_qdc:qualifieddc/dc:language</div><div>/OAI-PMH/ListRecords/record/met=
adata/oai_qdc:qualifieddc/dc:rights</div><div>/OAI-PMH/ListRecords/record/m=
etadata/oai_qdc:qualifieddc/dcterms:isPartOf</div><div>/OAI-PMH/ListRecords=
/record/metadata/oai_qdc:qualifieddc/dcterms:extent</div><div>/OAI-PMH/List=
Records/record/metadata/oai_qdc:qualifieddc/dc:identifier</div><div>/OAI-PM=
H/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:relation</div><div>/OA=
I-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dcterms:alternative</=
div><div>/OAI-PMH/ListRecords/resumptionToken</div><div>/&gt;delete /OAI-PM=
H/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:title</div><div>/&gt;p=
aths</div><div>Found 26 items</div><div>/OAI-PMH</div><div>/OAI-PMH/respons=
eDate</div><div>/OAI-PMH/request</div><div>/OAI-PMH/ListRecords</div><div>/=
OAI-PMH/ListRecords/record</div><div>/OAI-PMH/ListRecords/record/header</di=
v><div>/OAI-PMH/ListRecords/record/header/identifier</div><div>/OAI-PMH/Lis=
tRecords/record/header/datestamp</div><div>/OAI-PMH/ListRecords/record/head=
er/setSpec</div><div>/OAI-PMH/ListRecords/record/metadata</div><div>/OAI-PM=
H/ListRecords/record/metadata/oai_qdc:qualifieddc</div><div>/OAI-PMH/ListRe=
cords/record/metadata/oai_qdc:qualifieddc/dc:date</div><div>/OAI-PMH/ListRe=
cords/record/metadata/oai_qdc:qualifieddc/dc:contributor</div><div>/OAI-PMH=
/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:description</div><div>/=
OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:subject</div><di=
v>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:format</div><=
div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:type</div><=
div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:publisher</=
div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:langua=
ge</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:ri=
ghts</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dct=
erms:isPartOf</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualif=
ieddc/dcterms:extent</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc=
:qualifieddc/dc:identifier</div><div>/OAI-PMH/ListRecords/record/metadata/o=
ai_qdc:qualifieddc/dc:relation</div><div>/OAI-PMH/ListRecords/record/metada=
ta/oai_qdc:qualifieddc/dcterms:alternative</div><div>/OAI-PMH/ListRecords/r=
esumptionToken</div><div>/&gt;quit</div><div>Quit without saving? (Y|N)</di=
v><div>/&gt;y</div><div>$</div><div><br></div></div><div><br></div><div><br=
></div><div dir=3D"ltr" data-setdir=3D"false">### Try 2:&nbsp; Fails, the d=
elete command kills the session when I attempt to use //namespace:name</div=
><br></div><div><div>$ java net.sf.saxon.Gizmo</div><div>Saxon Gizmo 10.5</=
div><div>/&gt;call /home/web/Saxon-HE/config-namespaces.txt</div><div>/&gt;=
load 1.xml</div><div>/&gt;delete //dc:title</div><div>Exception in thread "=
main" java.util.ConcurrentModificationException</div><div>&nbsp; &nbsp; &nb=
sp; &nbsp; at java.base/java.util.ArrayList$Itr.checkForComodification(Arra=
yList.java:1043)</div><div>&nbsp; &nbsp; &nbsp; &nbsp; at java.base/java.ut=
il.ArrayList$Itr.next(ArrayList.java:997)</div><div>&nbsp; &nbsp; &nbsp; &n=
bsp; at net.sf.saxon.Gizmo.delete(Gizmo.java:439)</div><div>&nbsp; &nbsp; &=
nbsp; &nbsp; at net.sf.saxon.Gizmo.executeCommands(Gizmo.java:304)</div><di=
v>&nbsp; &nbsp; &nbsp; &nbsp; at net.sf.saxon.Gizmo.&lt;init&gt;(Gizmo.java=
:231)</div><div>&nbsp; &nbsp; &nbsp; &nbsp; at net.sf.saxon.Gizmo.main(Gizm=
o.java:168)</div><div>$</div><div><br></div></div><br></div><div dir=3D"ltr=
" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">##=
# Try 3:&nbsp; Successful, because I specify the delete without referencing=
 the namespace</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div d=
ir=3D"ltr" data-setdir=3D"false"><div><div>$ java net.sf.saxon.Gizmo</div><=
div>Saxon Gizmo 10.5</div><div>/&gt;call /home/web/Saxon-HE/config-namespac=
es.txt</div><div>/&gt;load 1.xml</div><div>/&gt;paths</div><div>Found 27 it=
ems</div><div>/OAI-PMH</div><div>/OAI-PMH/responseDate</div><div>/OAI-PMH/r=
equest</div><div>/OAI-PMH/ListRecords</div><div>/OAI-PMH/ListRecords/record=
</div><div>/OAI-PMH/ListRecords/record/header</div><div>/OAI-PMH/ListRecord=
s/record/header/identifier</div><div>/OAI-PMH/ListRecords/record/header/dat=
estamp</div><div>/OAI-PMH/ListRecords/record/header/setSpec</div><div>/OAI-=
PMH/ListRecords/record/metadata</div><div>/OAI-PMH/ListRecords/record/metad=
ata/oai_qdc:qualifieddc</div><div>/OAI-PMH/ListRecords/record/metadata/oai_=
qdc:qualifieddc/dc:title</div><div>/OAI-PMH/ListRecords/record/metadata/oai=
_qdc:qualifieddc/dc:date</div><div>/OAI-PMH/ListRecords/record/metadata/oai=
_qdc:qualifieddc/dc:contributor</div><div>/OAI-PMH/ListRecords/record/metad=
ata/oai_qdc:qualifieddc/dc:description</div><div>/OAI-PMH/ListRecords/recor=
d/metadata/oai_qdc:qualifieddc/dc:subject</div><div>/OAI-PMH/ListRecords/re=
cord/metadata/oai_qdc:qualifieddc/dc:format</div><div>/OAI-PMH/ListRecords/=
record/metadata/oai_qdc:qualifieddc/dc:type</div><div>/OAI-PMH/ListRecords/=
record/metadata/oai_qdc:qualifieddc/dc:publisher</div><div>/OAI-PMH/ListRec=
ords/record/metadata/oai_qdc:qualifieddc/dc:language</div><div>/OAI-PMH/Lis=
tRecords/record/metadata/oai_qdc:qualifieddc/dc:rights</div><div>/OAI-PMH/L=
istRecords/record/metadata/oai_qdc:qualifieddc/dcterms:isPartOf</div><div>/=
OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dcterms:extent</div=
><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:identifie=
r</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:rel=
ation</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc=
terms:alternative</div><div>/OAI-PMH/ListRecords/resumptionToken</div><div>=
/&gt;delete //title</div><div>/&gt;paths</div><div>Found 26 items</div><div=
>/OAI-PMH</div><div>/OAI-PMH/responseDate</div><div>/OAI-PMH/request</div><=
div>/OAI-PMH/ListRecords</div><div>/OAI-PMH/ListRecords/record</div><div>/O=
AI-PMH/ListRecords/record/header</div><div>/OAI-PMH/ListRecords/record/head=
er/identifier</div><div>/OAI-PMH/ListRecords/record/header/datestamp</div><=
div>/OAI-PMH/ListRecords/record/header/setSpec</div><div>/OAI-PMH/ListRecor=
ds/record/metadata</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:q=
ualifieddc</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualified=
dc/dc:date</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualified=
dc/dc:contributor</div><div>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qu=
alifieddc/dc:description</div><div>/OAI-PMH/ListRecords/record/metadata/oai=
_qdc:qualifieddc/dc:subject</div><div>/OAI-PMH/ListRecords/record/metadata/=
oai_qdc:qualifieddc/dc:format</div><div>/OAI-PMH/ListRecords/record/metadat=
a/oai_qdc:qualifieddc/dc:type</div><div>/OAI-PMH/ListRecords/record/metadat=
a/oai_qdc:qualifieddc/dc:publisher</div><div>/OAI-PMH/ListRecords/record/me=
tadata/oai_qdc:qualifieddc/dc:language</div><div>/OAI-PMH/ListRecords/recor=
d/metadata/oai_qdc:qualifieddc/dc:rights</div><div>/OAI-PMH/ListRecords/rec=
ord/metadata/oai_qdc:qualifieddc/dcterms:isPartOf</div><div>/OAI-PMH/ListRe=
cords/record/metadata/oai_qdc:qualifieddc/dcterms:extent</div><div>/OAI-PMH=
/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:identifier</div><div>/O=
AI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dc:relation</div><di=
v>/OAI-PMH/ListRecords/record/metadata/oai_qdc:qualifieddc/dcterms:alternat=
ive</div><div>/OAI-PMH/ListRecords/resumptionToken</div><div>/&gt;</div><di=
v><br></div></div>.</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><=
div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdi=
r=3D"false"><br></div></div></body></html>
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