Switch back to Java 8 (still works with 11)

Author: dsyer

.gitignore

@@ -7,6 +7,7 @@ interpolated-pom.xml
 *~
 build.log
 _site/
+.vscode/
 
 ### STS ###
 .apt_generated

benchmarks/README.adoc

@@ -2,7 +2,7 @@
 
 == How to run
 
-You need to have Java 11 to run the benchmarks. The Exec Maven Plugin will run the benschmarks.jar file to start the benchmarking process:
+The Exec Maven Plugin will run the `benchmarks.jar` file to start the benchmarking process:
 
 ```
 $ cd benchmarks

benchmarks/pom.xml

@@ -22,7 +22,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>11</java.version>
+		<java.version>8</java.version>
 		<jmh.version>1.23</jmh.version>
 		<thin-jar.version>1.0.24.RELEASE</thin-jar.version>
 		<start-class>org.openjdk.jmh.Main</start-class>

benchmarks/src/main/java/com/bench/ProcessLauncherState.java

@@ -31,6 +31,7 @@
 import org.openjdk.jmh.util.Utils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.boot.system.JavaVersion;
 
 import com.example.InterceptorApplication;
 
@@ -52,7 +53,7 @@ public ProcessLauncherState(String dir, String... args) {
 		this.args.add(count++, System.getProperty("java.home") + "/bin/java");
 		this.args.add(count++, "-Xmx128m");
 		this.args.add(count++, "-cp");
-		this.args.add(count++, getClasspathJdk9());
+		this.args.add(count++, getClasspath());
 		this.args.add(count++, "-Djava.security.egd=file:/dev/./urandom");
 		this.args.add(count++, "-XX:TieredStopAtLevel=1"); // zoom
 		if (System.getProperty("bench.args") != null) {
@@ -74,6 +75,13 @@ public void setJvmArgs(String... extraArgs) {
 		this.jvmArgs = Arrays.asList(extraArgs);
 	}
 
+	String getClasspath() {
+		if (JavaVersion.getJavaVersion().isOlderThan(JavaVersion.NINE)) {
+			return getClasspathJdk8();
+		}
+		return getClasspathJdk9();
+	}
+
 	String getClasspathJdk8() {
 		StringBuilder builder = new StringBuilder();
 

ctw/pom.xml

@@ -21,7 +21,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>11</java.version>
+		<java.version>8</java.version>
 		<thin-jar.version>1.0.24.RELEASE</thin-jar.version>
 	</properties>
 

ltw/pom.xml

@@ -22,7 +22,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>11</java.version>
+		<java.version>8</java.version>
 		<thin-jar.version>1.0.24.RELEASE</thin-jar.version>
 	</properties>
 

multi-ctw/ctw-app/pom.xml

@@ -21,7 +21,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>11</java.version>
+		<java.version>8</java.version>
 		<thin-jar.version>1.0.24.RELEASE</thin-jar.version>
 	</properties>
 

multi-ctw/ctw-aspects/pom.xml

@@ -21,7 +21,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>11</java.version>
+		<java.version>8</java.version>
 		<thin-jar.version>1.0.24.RELEASE</thin-jar.version>
 	</properties>
 

multi-ctw/pom.xml

@@ -20,7 +20,7 @@
 	</modules>
 
 	<properties>
-        <java.version>11</java.version>
+        <java.version>8</java.version>
 	</properties>
 
 	<build>

multi-ltw/ltw-app/pom.xml

@@ -22,7 +22,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>11</java.version>
+		<java.version>8</java.version>
 		<thin-jar.version>1.0.24.RELEASE</thin-jar.version>
 		<timing.version>1.0.0-SNAPSHOT</timing.version>
 	</properties>

multi-ltw/ltw-aspects/pom.xml

@@ -21,7 +21,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>11</java.version>
+		<java.version>8</java.version>
 		<thin-jar.version>1.0.24.RELEASE</thin-jar.version>
 	</properties>
 

multi-ltw/pom.xml

@@ -20,7 +20,7 @@
 	</modules>
 
 	<properties>
-        <java.version>11</java.version>
+        <java.version>8</java.version>
 	</properties>
 
 	<build>

spring/pom.xml

@@ -21,7 +21,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>11</java.version>
+		<java.version>8</java.version>
 		<thin-jar.version>1.0.24.RELEASE</thin-jar.version>
 	</properties>
 

timing/pom.xml

@@ -21,7 +21,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>11</java.version>
+		<java.version>8</java.version>
 	</properties>
 
 	<dependencies>