"PersistenceException: Unable to resolve persistence unit root URL" when running jar

[dschulz]

Simple barebones Gradle application runs without problems with gradle bootRun but fails when ran as jar. Here's a gist with the log.

 buildscript {
    ext {
        //springBootVersion = '1.4.0.BUILD-SNAPSHOT'
           springBootVersion = '1.4.0.M2'
    }
    repositories {
        mavenCentral()
       // jcenter()
        maven { url "https://repo.spring.io/snapshot" }
        maven { url "https://repo.spring.io/milestone" }
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
    }
}

apply plugin: 'java'
apply plugin: 'idea'
apply plugin: 'spring-boot'

jar {
    baseName = 'logistica'
    version = '0.0.1-SNAPSHOT'
}

sourceCompatibility = 1.8
targetCompatibility = 1.8

repositories {
    mavenCentral()
        maven { url "https://repo.spring.io/snapshot" }
    maven { url "https://repo.spring.io/milestone" }
}

 dependencies {
   compile('org.springframework.boot:spring-boot-starter-actuator')
   compile('org.springframework.boot:spring-boot-starter-data-jpa')
   compile('org.springframework.boot:spring-boot-devtools')
   compile('org.springframework.boot:spring-boot-starter-mail')
   compile('org.springframework.boot:spring-boot-starter-remote-shell')
   compile('org.springframework.boot:spring-boot-starter-security')
   compile('org.springframework.boot:spring-boot-starter-thymeleaf')
   compile('org.thymeleaf.extras:thymeleaf-extras-springsecurity4')
   compile("nz.net.ultraq.thymeleaf:thymeleaf-layout-dialect")
   compile('org.springframework.boot:spring-boot-starter-web')
   // compile('org.springframework.boot:spring-boot-starter-undertow')
   compile('org.hibernate:hibernate-java8')
   runtime('org.postgresql:postgresql')
   testCompile('org.springframework.boot:spring-boot-starter-test') 
}

bootRun {
     addResources = true
}

task wrapper(type: Wrapper) {
    gradleVersion = '2.13'
}

This is how I build the jar:

./gradlew clean build
:clean
:compileJava
:processResources
:classes
:findMainClass
:jar
:bootRepackage
:assemble
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
:check UP-TO-DATE
:build

BUILD SUCCESSFUL

Total time: 5.018 secs

This build could be faster, please consider using the Gradle Daemon: https://docs.gradle.org/2.13/userguide/gradle_daemon.html

application.properties file:

spring.application.name="Logística"
spring.thymeleaf.cache=false
spring.datasource.url=jdbc:postgresql://localhost/dschulz
spring.datasource.username=dschulz
spring.datasource.password=yadayada
spring.datasource.driver-class-name=org.postgresql.Driver
spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update

main application:

package com.dschulz;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class LogisticaApplication {

    public static void main(String[] args) {
        SpringApplication.run(LogisticaApplication.class, args);
    }
}

[dschulz]

Forgot to mention that the app runs just fine (as fat jar) if I switch to 1.3.3.RELEASE.

[snicoll]

@dschulz rather than pasting code here, can you please share a sample project that reproduces the issue? We have postgres instances around if we really have to use that we can. If you can reproduce the issue with H2 or something that would be obviously easier. Thanks.

[dschulz]

Someone reported the same bug with more details here: 5842.