`cdi1.0` suffix being added to dependency path, thus unable to resolve

Some of the libraries require com.google.guava:guava:21.0 as the dependency, however gradle fails to fetch it from the maven repository . it’s a legacy project, so versions are not the latest.

Error log:

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileJava'.
> Could not resolve all files for configuration ':compileClasspath'.
   > Could not find guava-21.0-cdi1.0.jar (com.google.guava:guava:21.0).
     Searched in the following locations:

guava-21.0.jar (without -cdi1.0 suffix) exists on that path. Why does gradle ads the -cdi1.0 suffix to the filename and is it possible to disable this feature? or i simply misunderstanding something and there is something else in play?

i tried to specify guava dep separately compile(group: 'com.google.guava', name: 'guava', version: '21.0') , however it doesn’t affect anything.

build.gradle: (generated by gradle init from maven pom.xml)

plugins {
    id 'java'
    id 'maven-publish'

repositories {
    maven {
        url = 'http://repo.maven.apache.org/maven2'

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-web:1.4.1.RELEASE'
    implementation 'org.springframework.boot:spring-boot-starter-jdbc:1.4.1.RELEASE'
    implementation 'org.springframework.boot:spring-boot-starter-actuator:1.4.1.RELEASE'
    ... etc other deps

group = 'com.springapp'
version = '1.0-SNAPSHOT'
description = 'someproj'
java.sourceCompatibility = JavaVersion.VERSION_1_8

publishing {
    publications {
        maven(MavenPublication) {

tasks.withType(JavaCompile) {
    options.encoding = 'UTF-8'

not sure if this allowed - excuse me if it’s not. reAlly stuck with this issue, would pay for help. thanks!