steveloughran commented on code in PR #4537:
URL: https://github.com/apache/hadoop/pull/4537#discussion_r917289045


##########
hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/util/PlatformName.java:
##########
@@ -45,9 +45,34 @@ public class PlatformName {
 
   /**
    * A public static variable to indicate the current java vendor is
-   * IBM java or not.
+   * IBM and the type is Java Technology Edition which provides its
+   * own implementations of many security packages and Cipher suites.
+   * Note that these are not provided in Semeru runtimes:
+   * See https://developer.ibm.com/languages/java/semeru-runtimes/
    */
-  public static final boolean IBM_JAVA = JAVA_VENDOR_NAME.contains("IBM");
+  public static final boolean USE_IBM_JAVA_PACKAGES = shouldUseIbmPackages();
+
+  /*
+  * IBM_JAVA must be preserved due to the public nature of the property.
+  */
+  @Deprecated
+  public static final boolean IBM_JAVA = USE_IBM_JAVA_PACKAGES;

Review Comment:
   can't you just leave this as is and so not need to change so many other 
files?



##########
hadoop-common-project/hadoop-minikdc/src/test/java/org/apache/hadoop/minikdc/TestMiniKdc.java:
##########
@@ -38,8 +38,19 @@
 import java.util.Arrays;
 
 public class TestMiniKdc extends KerberosSecurityTestcase {
-  private static final boolean IBM_JAVA = System.getProperty("java.vendor")
-      .contains("IBM");
+  private static final boolean USE_IBM_JAVA_PACKAGES = shouldUseIbmPackages();

Review Comment:
   should just use PlatformNames



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