[jira] [Created] (JXR-170) NullPointerException while parsing Java 15 multi-line String source containing reserved Java keyword

["Markus Spann (Jira)" <ji...@apache.org>]

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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