vs code not finding org.antlr.v4.parse.ANTLRParser

[chris-miner]

Any vscode users? After successfully compiling via the command line, I open antlr4 in vs code, but it can't manage to find org.antlr.v4.parse.ANTLRParser.

For example in the org.antlr.v4.Tool.java file. The generated source is there under antlr4/tool/target/generated-sources/antlr3/org/antlr/v4/parse though.

Where should vscode be expecting to find the .class file?
Edit: Okay found it under antlr/tool/target/classes/org/antlr/v4/parse/ANTLRParser.class

Ideas on why vscode is not finding it there?

[chris-miner]

Apparently VSCode doesn't find org.antlr.v4.parse.ANTLRParser because ${project.build.directory}/generated-sources/antlr3 is not included in sources. There is a bit in the tool pom to include generated sources:

			<plugin> <!-- include code-generated sources -->
				<groupId>org.codehaus.mojo</groupId>
				<artifactId>build-helper-maven-plugin</artifactId>
				<version>3.2.0</version>
				<executions>
					<execution>
						<phase>generate-sources</phase>
						<goals>
							<goal>add-source</goal>
						</goals>
						<configuration>
							<sources>
								<source>${project.build.directory}/generated-sources/antlr4-tool-codegen</source>
							</sources>
						</configuration>
					</execution>
				</executions>
			</plugin>

But this includes a non-existent directory. There is no antlr4-tool-codegen under generated-sources. There is a antlr3 though.

I added:

<source>${project.build.directory}/generated-sources/antrlr3</source>

and that remedied the issue.