Raphael Rösch created MNG-6707:
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Summary: Maven XML parser does not accept '>' in XML processing
instructions
Key: MNG-6707
URL: https://issues.apache.org/jira/browse/MNG-6707
Project: Maven
Issue Type: Bug
Affects Versions: 3.6.1
Reporter: Raphael Rösch
Maven 3.6 does not accept the char '>' in [XML processing instructions
(PI)|https://www.w3.org/TR/REC-xml/#sec-pi], but '>' is a valid char in PIs.
Previous versions of Maven (tested with 3.5) are not affected.
Example:
{code:xml}
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>org.apache.test</groupId>
<artifactId>xmlbugtest</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>pom</packaging>
<?foo bar > bar ?>
</project>
{code}
Maven 3.6 fails to parse the given POM:
{code:java}
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[FATAL] Non-parseable POM /home/rroesch/tests/mavenxmlbug/pom.xml: processing
instruction started on line 7 and column 5 was not closed (position: END_TAG
seen ...</packaging>\n <?foo bar >... @7:14) @ line 7, column 14
@
[ERROR] The build could not read 1 project -> [Help 1]
org.apache.maven.project.ProjectBuildingException: Some problems were
encountered while processing the POMs:
[FATAL] Non-parseable POM /home/rroesch/tests/mavenxmlbug/pom.xml: processing
instruction started on line 7 and column 5 was not closed (position: END_TAG
seen ...</packaging>\n <?foo bar >... @7:14) @ line 7, column 14
at org.apache.maven.project.DefaultProjectBuilder.build
(DefaultProjectBuilder.java:395)
at org.apache.maven.graph.DefaultGraphBuilder.collectProjects
(DefaultGraphBuilder.java:414)
at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor
(DefaultGraphBuilder.java:405)
at org.apache.maven.graph.DefaultGraphBuilder.build
(DefaultGraphBuilder.java:82)
at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch
(Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main
(Launcher.java:347)
[ERROR]
[ERROR] The project (/home/rroesch/tests/mavenxmlbug/pom.xml) has 1 error
[ERROR] Non-parseable POM /home/rroesch/tests/mavenxmlbug/pom.xml:
processing instruction started on line 7 and column 5 was not closed (position:
END_TAG seen ...</packaging>\n <?foo bar >... @7:14) @ line 7, column 14 ->
[Help 2]
org.apache.maven.model.io.ModelParseException: processing instruction started
on line 7 and column 5 was not closed (position: END_TAG seen ...</packaging>\n
<?foo bar >... @7:14)
at org.apache.maven.model.io.DefaultModelReader.read
(DefaultModelReader.java:114)
at org.apache.maven.model.io.DefaultModelReader.read
(DefaultModelReader.java:82)
at org.apache.maven.model.building.DefaultModelProcessor.read
(DefaultModelProcessor.java:84)
at org.apache.maven.model.building.DefaultModelBuilder.readModel
(DefaultModelBuilder.java:544)
at org.apache.maven.model.building.DefaultModelBuilder.build
(DefaultModelBuilder.java:276)
at org.apache.maven.project.DefaultProjectBuilder.build
(DefaultProjectBuilder.java:446)
at org.apache.maven.project.DefaultProjectBuilder.build
(DefaultProjectBuilder.java:412)
at org.apache.maven.project.DefaultProjectBuilder.build
(DefaultProjectBuilder.java:375)
at org.apache.maven.graph.DefaultGraphBuilder.collectProjects
(DefaultGraphBuilder.java:414)
at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor
(DefaultGraphBuilder.java:405)
at org.apache.maven.graph.DefaultGraphBuilder.build
(DefaultGraphBuilder.java:82)
at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch
(Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main
(Launcher.java:347)
Caused by: org.codehaus.plexus.util.xml.pull.XmlPullParserException: processing
instruction started on line 7 and column 5 was not closed (position: END_TAG
seen ...</packaging>\n <?foo bar >... @7:14)
at org.codehaus.plexus.util.xml.pull.MXParser.parsePI (MXParser.java:3057)
at org.codehaus.plexus.util.xml.pull.MXParser.nextImpl (MXParser.java:1500)
at org.codehaus.plexus.util.xml.pull.MXParser.next (MXParser.java:1319)
at org.codehaus.plexus.util.xml.pull.MXParser.nextTag (MXParser.java:1302)
at org.apache.maven.model.io.xpp3.MavenXpp3ReaderEx.parseModel
(MavenXpp3ReaderEx.java:2319)
at org.apache.maven.model.io.xpp3.MavenXpp3ReaderEx.read
(MavenXpp3ReaderEx.java:4425)
at org.apache.maven.model.io.xpp3.MavenXpp3ReaderEx.read
(MavenXpp3ReaderEx.java:598)
at org.apache.maven.model.io.DefaultModelReader.read
(DefaultModelReader.java:105)
at org.apache.maven.model.io.DefaultModelReader.read
(DefaultModelReader.java:82)
at org.apache.maven.model.building.DefaultModelProcessor.read
(DefaultModelProcessor.java:84)
at org.apache.maven.model.building.DefaultModelBuilder.readModel
(DefaultModelBuilder.java:544)
at org.apache.maven.model.building.DefaultModelBuilder.build
(DefaultModelBuilder.java:276)
at org.apache.maven.project.DefaultProjectBuilder.build
(DefaultProjectBuilder.java:446)
at org.apache.maven.project.DefaultProjectBuilder.build
(DefaultProjectBuilder.java:412)
at org.apache.maven.project.DefaultProjectBuilder.build
(DefaultProjectBuilder.java:375)
at org.apache.maven.graph.DefaultGraphBuilder.collectProjects
(DefaultGraphBuilder.java:414)
at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor
(DefaultGraphBuilder.java:405)
at org.apache.maven.graph.DefaultGraphBuilder.build
(DefaultGraphBuilder.java:82)
at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch
(Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main
(Launcher.java:347)
[ERROR]
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please
read the following articles:
[ERROR] [Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[ERROR] [Help 2]
http://cwiki.apache.org/confluence/display/MAVEN/ModelParseException
{code}
Even if PIs are not evaluated by Maven, they can be used as alternative to [XML
comments|https://www.w3.org/TR/REC-xml/#NT-Comment]. Example:
[parquet-1.9.0-cdh6.2.0.pom|https://repository.cloudera.com/artifactory/cloudera-repos/org/apache/parquet/parquet/1.9.0-cdh6.2.0/parquet-1.9.0-cdh6.2.0.pom]
line 286 is not parsable by Maven 3.6.
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