Add an error message to better explain Java 11+ build requirement (#2081)

Anuraag Agrawal · web-flow · commit 5528fe80bfab · 2020-11-18T12:53:07.000-08:00
* Add an error message to better explain Java 11+ build requirement

* Better wording

* Merge
diff --git a/build.gradle b/build.gradle
@@ -10,6 +10,13 @@ plugins {
     id "io.morethan.jmhreport" apply false
 }
 
+if (!JavaVersion.current().isJava11Compatible()) {
+    throw new GradleException("JDK 11 or higher is required to build. " +
+            "One option is to download it from https://adoptopenjdk.net/. If you believe you already " +
+            "have it, please check that the JAVA_HOME environment variable is pointing at the " +
+            "JDK 11 installation.")
+}
+
 ext {
     opentelemetryProjects = subprojects - project(":opentelemetry-bom")
 }

Original file line number	Diff line number	Diff line change
`@@ -10,6 +10,13 @@ plugins {`
`10`	`10`	`id "io.morethan.jmhreport" apply false`
`11`	`11`	`}`
`12`	`12`
	`13`	`+if (!JavaVersion.current().isJava11Compatible()) {`
	`14`	`+ throw new GradleException("JDK 11 or higher is required to build. " +`
	`15`	`+ "One option is to download it from https://adoptopenjdk.net/. If you believe you already " +`
	`16`	`+ "have it, please check that the JAVA_HOME environment variable is pointing at the " +`
	`17`	`+ "JDK 11 installation.")`
	`18`	`+}`
	`19`	`+`
`13`	`20`	`ext {`
`14`	`21`	`opentelemetryProjects = subprojects - project(":opentelemetry-bom")`
`15`	`22`	`}`