CORDA-1633 - Check Java version before launch (corda#4128)

exFalso · Oct 29, 2018 · 199a203 · 199a203
1 parent ff9061b
commit 199a203
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/node/src/main/java/CordaCaplet.java b/node/src/main/java/CordaCaplet.java
@@ -54,6 +54,7 @@ private String getOption(List<String> args, String option) {
 
     @Override
     protected ProcessBuilder prelaunch(List<String> jvmArgs, List<String> args) {
+        checkJavaVersion();
         nodeConfig = parseConfigFile(args);
         return super.prelaunch(jvmArgs, args);
     }
@@ -143,6 +144,14 @@ private void augmentClasspath(List<Path> classpath, File dir) {
         }
     }
 
+    private static void checkJavaVersion() {
+        String version = System.getProperty("java.version");
+        if (version == null || !version.startsWith("1.8")) {
+            System.err.printf("Error: Unsupported Java version %s; currently only version 1.8 is supported.\n", version);
+            System.exit(1);
+        }
+    }
+
     private void requireCordappsDirExists(File dir) {
         try {
             if (!dir.mkdir() && !dir.exists()) { // It is unlikely to enter this if-branch, but just in case.