6963156: TEST_BUG: Several tests under sun/nio/cs failed

Updated the test cases and removed them from ProblemList.txt

Reviewed-by: alanb

jdk/test/ProblemList.txt

@@ -533,18 +533,12 @@ com/sun/nio/sctp/SctpChannel/Bind.java				generic-all
 # Failed on OpenSolaris, java.lang.AssertionError: Unknown event type
 com/sun/nio/sctp/SctpChannel/Receive.java			generic-all
 
-# Triggers a hotspot crash on Fedora 9 32bit -server and Windows X64  samevm
-sun/nio/cs/TestUTF8.java					generic-all
-
 # Runtime exception on windows X64, samevm mode
 java/nio/channels/Selector/WakeupNow.java			generic-all
 
 # Occasional errors, solarix x86, address already in use, othervm mode
 java/nio/channels/Selector/SelectorTest.java			generic-all
 
-# Fails on Linux Fedora 9 X64
-sun/nio/cs/FindDecoderBugs.java					generic-all
-
 # Solaris 11 gave assert error and "connection refused", samevm issues?
 com/sun/nio/sctp/SctpServerChannel/NonBlockingAccept.java 	generic-all
 
@@ -595,9 +589,6 @@ java/nio/channels/SocketChannel/FinishConnect.java	 	windows-all
 # Fails on all platforms due to overlap of JDK jar file contents:
 sun/nio/cs/Test4200310.sh				 	generic-all
 
-# Depends on motif packages that do not exist all the time:
-sun/nio/cs/TestX11CNS.java				 	generic-all
-
 ############################################################################
 
 # jdk_rmi

jdk/test/sun/nio/cs/FindDecoderBugs.java

@@ -298,7 +298,7 @@ public class FindDecoderBugs {
         void testRandomly(byte[] prefix, int n) {
             int len = prefix.length;
             byte[] ia = Arrays.copyOf(prefix, len + n);
-            for (int i = 0; i < 10000; i++) {
+            for (int i = 0; i < 5000; i++) {
                 for (int j = 0; j < n; j++)
                     ia[len + j] = randomByte();
                 test(ia);
@@ -435,6 +435,9 @@ public class FindDecoderBugs {
     static void equal(Object x, Object y) {
         if (x == null ? y == null : x.equals(y)) pass();
         else fail(x + " not equal to " + y);}
+    static void equal(int x, int y) {
+        if (x == y) pass();
+        else fail(x + " not equal to " + y);}
     public static void main(String[] args) throws Throwable {
         try {realMain(args);} catch (Throwable t) {unexpected(t);}
         System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);

jdk/test/sun/nio/cs/TestX11CNS.java

@@ -94,6 +94,8 @@ public class TestX11CNS {
     }
 
     static void compare(Charset newCS, Charset oldCS) throws Exception {
+        if (newCS == null)
+            return;  // does not exist on this platform
         char[] cc = getChars(newCS, oldCS);
         System.out.printf("    Diff <%s> <%s>...%n", newCS.name(), oldCS.name());
 
@@ -120,14 +122,22 @@ public class TestX11CNS {
         }
     }
 
+    private static Charset getCharset(String czName)
+        throws Exception {
+        try {
+            return (Charset)Class.forName(czName).newInstance();
+        } catch (ClassNotFoundException e){}
+        return null;  // does not exist
+    }
+
     public static void main(String[] args) throws Exception {
-        compare(new sun.awt.motif.X11CNS11643P1(),
+        compare(getCharset("sun.awt.motif.X11CNS11643P1"),
                 new X11CNS11643P1());
 
-        compare(new sun.awt.motif.X11CNS11643P2(),
+        compare(getCharset("sun.awt.motif.X11CNS11643P2"),
                 new X11CNS11643P2());
 
-        compare(new sun.awt.motif.X11CNS11643P3(),
+        compare(getCharset("sun.awt.motif.X11CNS11643P3"),
                 new X11CNS11643P3());
 
     }