many cosmetic changes taken from more maintained jdk11

- introduced debug_arches, bootstrap_arches, systemtap_arches, fastdebug_arches, sa_arches, share_arches, shenandoah_arches, zgc_arches
  instead of various hardcoded ifarches
- updated systemtap
- added requires excludes for debug pkgs
- removed redundant logic around jsa files
- added runtime requires of lksctp-tools and libXcomposite%
- added and used Source15 TestSecurityProperties.java, but is made always positive as jdk15 now does not honor system policies
- s390x excluded form fastdebug build

TestSecurityProperties.java

@@ -0,0 +1,43 @@
+import java.io.File;
+import java.io.FileInputStream;
+import java.security.Security;
+import java.util.Properties;
+
+public class TestSecurityProperties {
+    // JDK 11
+    private static final String JDK_PROPS_FILE_JDK_11 = System.getProperty("java.home") + "/conf/security/java.security";
+    // JDK 8
+    private static final String JDK_PROPS_FILE_JDK_8 = System.getProperty("java.home") + "/lib/security/java.security";
+
+    public static void main(String[] args) {
+        Properties jdkProps = new Properties();
+        loadProperties(jdkProps);
+        for (Object key: jdkProps.keySet()) {
+            String sKey = (String)key;
+            String securityVal = Security.getProperty(sKey);
+            String jdkSecVal = jdkProps.getProperty(sKey);
+            if (!securityVal.equals(jdkSecVal)) {
+                String msg = "Expected value '" + jdkSecVal + "' for key '" + 
+                             sKey + "'" + " but got value '" + securityVal + "'";
+                throw new RuntimeException("Test failed! " + msg);
+            } else {
+                System.out.println("DEBUG: " + sKey + " = " + jdkSecVal + " as expected.");
+            }
+        }
+        System.out.println("TestSecurityProperties PASSED!");
+    }
+    
+    private static void loadProperties(Properties props) {
+        String javaVersion = System.getProperty("java.version");
+        System.out.println("Debug: Java version is " + javaVersion);
+        String propsFile = JDK_PROPS_FILE_JDK_11;
+        if (javaVersion.startsWith("1.8.0")) {
+            propsFile = JDK_PROPS_FILE_JDK_8;
+        }
+        try (FileInputStream fin = new FileInputStream(new File(propsFile))) {
+            props.load(fin);
+        } catch (Exception e) {
+            throw new RuntimeException("Test failed!", e);
+        }
+    }
+}