Merge pull request #501 from venmanyarun/set_java_home_productInfo

adding JAVA_HOME env variable for product info based on java.home

Author: venmanyarun

src/main/java/io/openliberty/tools/common/plugins/util/InstallFeatureUtil.java

@@ -1151,7 +1151,14 @@ public static String productInfo(File installDirectory, String action) throws Pl
             } else {
                 productInfoFile = installDirectory + "/bin/productInfo";
             }
+
             ProcessBuilder pb = new ProcessBuilder(productInfoFile, action);
+            Properties sysp = System.getProperties();
+            String javaHome = sysp.getProperty("java.home");
+            if (javaHome != null) {
+                pb.environment().put("JAVA_HOME", javaHome);
+            }
+            pb.redirectErrorStream(true);
             pr = pb.start();
 
             in = new BufferedReader(new InputStreamReader(pr.getInputStream()));