Check java vendor is IBM

ThePrez · Jan 3, 2025 · 6afc65e · 6afc65e
1 parent feb1b45
commit 6afc65e
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diff --git a/camel/src/main/java/com/github/theprez/manzan/ManzanMainApp.java b/camel/src/main/java/com/github/theprez/manzan/ManzanMainApp.java
@@ -32,6 +32,18 @@ public static void main(final String... _args) throws Exception {
             return;
         }
 
+        // Check to make sure we use right java version on IBM i
+        if (Config.isIBMi()){
+            // Get the Java vendor property
+            String javaVendor = System.getProperty("java.vendor");
+            // Check if the vendor is IBM
+            if (!javaVendor.toLowerCase().contains("ibm")) {
+                System.out.println("Java vendor: " + javaVendor);
+                System.err.println("Error: This application requires Java provided by IBM");
+                System.exit(1);
+            }
+        }
+
         for(final String arg:_args) {
             if(arg.startsWith("--configdir=")) {
                 System.setProperty(Config.DIRECTORY_OVERRIDE_PROPERTY, arg.replaceFirst("^[^=]+=", ""));

diff --git a/docs/install.md b/docs/install.md
@@ -4,7 +4,7 @@ Building Manzan is easy for IBM i and we provide makefiles to simplify the entir
 
 ## Which Java to use
 Use a Java version provided by IBM, which is at least version 8. When running the `java -version` command, the output 
-should contain the string `IBM Semeru Runtime Certified Edition`. Otherwise, Manzan may not function properly.
+should contain the string `IBM`. Ex. `IBM Semeru Runtime Certified Edition`. Otherwise, Manzan may not function properly.
 
 ## Install from GitHub release