maven-plugin-api com.thoughtworks.qdox.parser.ParseException - maven-2

Question

Getting a com.thoughtworks.qdox.parser.ParseException when building my project. This error first occurred when I changed:
<packaging>jar</packaging>
to:
<packaging>maven-plugin</packaging>
Before that, the entire project built and ran cleanly. maven-plugin-api is the newest version available in maven, so upgrading per "GWT, Maven, Spring - Getting com.thoughtworks.qdox.parser.ParseException: syntax error on Maven Build" won't work. I've also tried downgrading; no change.
The exception:
com.thoughtworks.qdox.parser.ParseException: syntax error #[38,1] in file:/home/blablahbla/MyClass.java
at com.thoughtworks.qdox.parser.impl.Parser.yyerror(Parser.java:716)
at com.thoughtworks.qdox.parser.impl.Parser.yyparse(Parser.java:826)
at com.thoughtworks.qdox.parser.impl.Parser.parse(Parser.java:697)
at com.thoughtworks.qdox.JavaDocBuilder.addSource(JavaDocBuilder.java:300)
at com.thoughtworks.qdox.JavaDocBuilder.addSource(JavaDocBuilder.java:316)
at com.thoughtworks.qdox.JavaDocBuilder.addSource(JavaDocBuilder.java:312)
at com.thoughtworks.qdox.JavaDocBuilder$1.visitFile(JavaDocBuilder.java:369)
at com.thoughtworks.qdox.directorywalker.DirectoryScanner.walk(DirectoryScanner.java:43)
at com.thoughtworks.qdox.directorywalker.DirectoryScanner.walk(DirectoryScanner.java:34)
at com.thoughtworks.qdox.directorywalker.DirectoryScanner.walk(DirectoryScanner.java:34)
at com.thoughtworks.qdox.directorywalker.DirectoryScanner.walk(DirectoryScanner.java:34)
at com.thoughtworks.qdox.directorywalker.DirectoryScanner.walk(DirectoryScanner.java:34)
at com.thoughtworks.qdox.directorywalker.DirectoryScanner.walk(DirectoryScanner.java:34)
at com.thoughtworks.qdox.directorywalker.DirectoryScanner.walk(DirectoryScanner.java:34)
at com.thoughtworks.qdox.directorywalker.DirectoryScanner.scan(DirectoryScanner.java:52)
at com.thoughtworks.qdox.JavaDocBuilder.addSourceTree(JavaDocBuilder.java:366)
at org.apache.maven.tools.plugin.extractor.java.JavaMojoDescriptorExtractor.discoverClasses(JavaMojoDescriptorExtractor.java:628)
at org.apache.maven.tools.plugin.extractor.java.JavaMojoDescriptorExtractor.execute(JavaMojoDescriptorExtractor.java:592)
at org.apache.maven.tools.plugin.scanner.DefaultMojoScanner.populatePluginDescriptor(DefaultMojoScanner.java:105)
at org.apache.maven.plugin.plugin.AbstractGeneratorMojo.execute(AbstractGeneratorMojo.java:171)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
The pom file:
<?xml version="1.0" encoding="UTF-8"?>
<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>foo.bar</groupId>
<artifactId>foobar</artifactId>
<packaging>maven-plugin</packaging>
<version>1.0.1</version>
<name>foobar</name>
<properties>
<org.springframework.version>3.1.0.M1</org.springframework.version>
<org.hibernate.version>3.6.0.Final</org.hibernate.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${org.hibernate.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.1.0.7.0</version>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.0-801.jdbc4</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.0.1</version>
</dependency>
<dependency>
<groupId>commons-cli</groupId>
<artifactId>commons-cli</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>foo.bar.internal</groupId>
<artifactId>internal-artifact</artifactId>
<version>0.1.9-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.6.1</version>
</dependency>
</dependencies>
</project>
The class in question:
import javax.persistence.*;
#Table(name = "MY_TABLE")
#SecondaryTables({
#SecondaryTable(name = "MY_TABLE2"),
#SecondaryTable(name = "MY_TABLE3"),
#SecondaryTable(name = "MY_TABLE4")
})
#Entity
#NamedQueries({
...
})
#AttributeOverrides({ // line 37
// #AttributeOverride( //line 38
// name = "metadataCheckOutFlag",
// column = #Column(
// name = "COMMENTED_OUT_FIELD",
// table = "MY_TABLE2"
// )
// ),
})
public class MyClass extends SimpleMyClass {
}
All JPA annotations have previously functioned without issue.

Answer 1

Well, it turns out I had an older version of another maven plugin, the maven-compiler-plugin. When I upgraded it to versino 2.3.2, a new version of the qdox library was downloaded and my problems disappeared, even when I tested downgrading to 2.0.2 again. Relevant section of pom.xml:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>