Don't depend on main jar task in test, we only use the class files

Change-Id: Ic808ef0b7418f0a90dece217923b7c84b80a9fad
diff --git a/d8_r8/test_modules/tests_java_8/build.gradle.kts b/d8_r8/test_modules/tests_java_8/build.gradle.kts
index a1fb994..fa45254 100644
--- a/d8_r8/test_modules/tests_java_8/build.gradle.kts
+++ b/d8_r8/test_modules/tests_java_8/build.gradle.kts
@@ -146,7 +146,7 @@
   withType<JavaCompile> {
     dependsOn(gradle.includedBuild("keepanno").task(":jar"))
     dependsOn(gradle.includedBuild("resourceshrinker").task(":jar"))
-    dependsOn(gradle.includedBuild("main").task(":jar"))
+    dependsOn(gradle.includedBuild("main").task(":compileJava"))
     dependsOn(thirdPartyCompileDependenciesTask)
   }