[Java] Use custom configuration to build shadow jar with correct POM.

Author: mjpt777

build.gradle

@@ -301,8 +301,19 @@ project(':sbe-tool') {
 project(':sbe-all') {
     apply plugin: 'com.github.johnrengelman.shadow'
 
+    configurations {
+        customApi
+    }
+
     dependencies {
-        implementation project(':sbe-tool')
+        customApi project(':sbe-tool')
+    }
+
+    sourceSets {
+        main {
+            compileClasspath += configurations.customApi
+            runtimeClasspath += compileClasspath
+        }
     }
 
     task sourcesJar(type: Jar) {
@@ -311,6 +322,7 @@ project(':sbe-all') {
     }
 
     javadoc {
+        classpath += configurations.customApi
         source += project(':sbe-tool').sourceSets.main.allJava
     }
 
@@ -320,7 +332,7 @@ project(':sbe-all') {
     }
 
     shadowJar {
-        mustRunAfter jar
+        configurations = [project.configurations.customApi]
         archiveClassifier.set ''
         manifest.attributes(
             'Main-Class': 'uk.co.real_logic.sbe.SbeTool',
@@ -333,6 +345,8 @@ project(':sbe-all') {
         )
     }
 
+    jar.finalizedBy shadowJar
+
     uploadArchives {
         repositories {
             mavenDeployer {
@@ -519,11 +533,12 @@ project(':sbe-benchmarks') {
     }
 
     shadowJar {
-        mustRunAfter jar
         archiveFileName = 'sbe-benchmarks.jar'
         archiveClassifier.set 'benchmarks'
         manifest.attributes('Main-Class': 'org.openjdk.jmh.Main')
     }
+
+    jar.finalizedBy shadowJar
 }
 
 /*