Unable to build Spring Boot project

[MazeChaZer]

I am trying to build a Spring Boot project using this Maven plugin and buildMaven. No matter what I do, I never get all the dependencies into the maven repository and the offline build fails.

$ nix-shell
[nix-shell]$ $buildPhase
[INFO] Scanning for projects...
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[FATAL] Non-resolvable parent POM for de.pg626:webshop:0.0.1-SNAPSHOT: Cannot access central (https://repo.maven.apache.org/maven2) in offline mode and the artifact org.springframework.boot:spring-boot-starter-parent:pom:2.1.3.RELEASE has not been downloaded from it before. and 'parent.relativePath' points at no local POM @ line 5, column 13
 @ 
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]   
[ERROR]   The project de.pg626:webshop:0.0.1-SNAPSHOT (/home/jonas/tu/PG/gc/backend/pom.xml) has 1 error
[ERROR]     Non-resolvable parent POM for de.pg626:webshop:0.0.1-SNAPSHOT: Cannot access central (https://repo.maven.apache.org/maven2) in offline mode and the artifact org.springframework.boot:spring-boot-starter-parent:pom:2.1.3.RELEASE has not been downloaded from it before. and 'parent.relativePath' points at no local POM @ line 5, column 13 -> [Help 2]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[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/UnresolvableModelException

Here is the pom.xml:

<?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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
        <relativePath />
        <!-- lookup parent from repository -->
    </parent>
    <groupId>de.pg626</groupId>
    <artifactId>webshop</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>webshop</name>
    <description>a social webshop</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jersey</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
	        <groupId>org.springframework.boot</groupId>
	        <artifactId>spring-boot-starter-tomcat</artifactId>
		</dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
		  	<groupId>com.paypal.sdk</groupId>
		    <artifactId>rest-api-sdk</artifactId>
		    <version>1.14.0</version>		    
		</dependency>
		<dependency>
		    <groupId>com.paypal.sdk</groupId>
		    <artifactId>paypal-core</artifactId>
		    <version>1.7.2</version>
		</dependency>
		<dependency>
		    <groupId>com.paypal.sdk</groupId>
		    <artifactId>checkout-sdk</artifactId>
		    <version>1.0.0</version>
		</dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.flywaydb</groupId>
            <artifactId>flyway-core</artifactId>
            <version>5.2.4</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <includes>
                        <include>**/*_*.java</include>
                    </includes>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.owasp</groupId>
                <artifactId>dependency-check-maven</artifactId>
                <version>5.0.0-M3</version>
                <configuration>
                    <failBuildOnCVSS>11</failBuildOnCVSS>
                    <format>JSON</format>
                    <jarAnalyzerEnabled>true</jarAnalyzerEnabled>
                    <nuspecAnalyzerEnabled>false</nuspecAnalyzerEnabled>
                    <archiveAnalyzerEnabled>false</archiveAnalyzerEnabled>
                    <centralAnalyzerEnabled>false</centralAnalyzerEnabled>
                    <ossindexAnalyzerEnabled>false</ossindexAnalyzerEnabled>
                    <nexusAnalyzerEnabled>false</nexusAnalyzerEnabled>
                    <artifactoryAnalyzerEnabled>false</artifactoryAnalyzerEnabled>
                    <pyDistributionAnalyzerEnabled>false</pyDistributionAnalyzerEnabled>
                    <pyPackageAnalyzerEnabled>false</pyPackageAnalyzerEnabled>
                    <rubygemsAnalyzerEnabled>false</rubygemsAnalyzerEnabled>
                    <opensslAnalyzerEnabled>false</opensslAnalyzerEnabled>
                    <cmakeAnalyzerEnabled>false</cmakeAnalyzerEnabled>
                    <autoconfAnalyzerEnabled>false</autoconfAnalyzerEnabled>
                    <composerAnalyzerEnabled>false</composerAnalyzerEnabled>
                    <nodeAnalyzerEnabled>false</nodeAnalyzerEnabled>
                    <retireJsAnalyzerEnabled>false</retireJsAnalyzerEnabled>
                    <nugetconfAnalyzerEnabled>false</nugetconfAnalyzerEnabled>
                    <cocoapodsAnalyzerEnabled>false</cocoapodsAnalyzerEnabled>
                    <bundleAuditAnalyzerEnabled>false</bundleAuditAnalyzerEnabled>
                    <!--> Gitlab CI-Server will add                    <dataDirectory></dataDirectory> Node here -->
                    <!--> Gitlab CI-Server will add                    <autoUpdate>false</autoUpdate> Node here -->
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>check</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

I generate the project-info.json with the following command:

$ mvn -Dmaven.repo.local=$(mktemp -d -t mavenXXX) org.nixos.mvn2nix:mvn2nix-maven-plugin:mvn2nix

My default.nix:

with import <nixpkgs> { };
(buildMaven ./project-info.json).build

It seems to me that the cause of the problem is the <parent> definition, I tried removing it but configuring all that Spring stuff by oneself is very complicated, I didn't figure out yet how to do that. And I'm not sure if I really want to do that :/ Any pointers or tips on how to debug this better are appreciated :)

[jerith666]

NixOS/nixpkgs#19741 has some pointers that may be helpful.

[zeratax]

kinda frustrating that the official nixos documentation link to this project that seems clearly broken?