Markus Spann created JXR-170:
--------------------------------
Summary: NullPointerException while parsing Java 15 multi-line
String source containing reserved Java keyword
Key: JXR-170
URL: https://issues.apache.org/jira/browse/JXR-170
Project: Maven JXR
Issue Type: Bug
Components: maven2 jxr plugin
Affects Versions: 3.2.0
Reporter: Markus Spann
Encountering {{NullPointerException}} in the aggregate goal while parsing a
Java source that makes use of new Java 15 multi-line Strings containing a
reserved Java keyword i.e. {{{}import{}}}.
Caused by: java.lang.NullPointerException: Cannot invoke "String.length()"
because "name" is null
at org.apache.maven.jxr.pacman.JavaFileImpl.parseRecursive
(JavaFileImpl.java:128)
at org.apache.maven.jxr.pacman.JavaFileImpl.parseRecursive
(JavaFileImpl.java:144)
at org.apache.maven.jxr.pacman.JavaFileImpl.parse (JavaFileImpl.java:74)
at org.apache.maven.jxr.pacman.JavaFileImpl.<init> (JavaFileImpl.java:59)
Command-line: {color:#e01e5a}mvn
org.apache.maven.plugins:maven-jxr-plugin:3.2.0:aggregate{color}
The plugin stumbles at following statement in my project (a code generator):
{code:java}
Code codeImport = new Code().addFormat("""
import {0};
import java.util.List;
""",
constantsClass.getName()
);
{code}
Same error in older versions of the plugin.
The only work-around I found was to exclude the source from jxr in its Maven
configuration:
{code:java}
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jxr-plugin</artifactId>
<configuration>
<linkJavadoc>false</linkJavadoc>
<skip>false</skip>
<excludes>
<exclude>**/ClassFailinginJxr.java</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</pluginManagement>
{code}
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