--- old/test/java/nio/Buffer/BasicChar.java	2015-03-23 16:12:52.000000000 -0700
+++ new/test/java/nio/Buffer/BasicChar.java	2015-03-23 16:12:52.000000000 -0700
@@ -128,6 +128,14 @@
         c.position(7);
         b.put(c);
         b.flip();
+        try {
+            b.put(b);
+            fail("IllegalArgumentException expected for putting into same buffer");
+        } catch (IllegalArgumentException e) {
+            if (e.getMessage() == null) {
+                fail("Non-null IllegalArgumentException message expected from putting into same buffer");
+            }
+        }
     }
 
     //6231529
@@ -464,6 +472,42 @@
                     b.reset();
                 }});
 
+        try {
+            b.position(b.limit() + 1);
+            fail("IllegalArgumentException expected for setting position beyond limit");
+        } catch (IllegalArgumentException e) {
+            if (e.getMessage() == null) {
+                fail("Non-null IllegalArgumentException message expected for setting position beyond limit");
+            }
+        }
+
+        try {
+            b.position(-1);
+            fail("IllegalArgumentException expected for setting negative position");
+        } catch (IllegalArgumentException e) {
+            if (e.getMessage() == null) {
+                fail("Non-null IllegalArgumentException message expected for setting negative position");
+            }
+        }
+
+        try {
+            b.limit(b.capacity() + 1);
+            fail("IllegalArgumentException expected for setting limit beyond capacity");
+        } catch (IllegalArgumentException e) {
+            if (e.getMessage() == null) {
+                fail("Non-null IllegalArgumentException message expected for setting limit beyond capacity");
+            }
+        }
+
+        try {
+            b.limit(-1);
+            fail("IllegalArgumentException expected for setting negative limit");
+        } catch (IllegalArgumentException e) {
+            if (e.getMessage() == null) {
+                fail("Non-null IllegalArgumentException message expected for setting negative limit");
+            }
+        }
+
         // Values
 
         b.clear();
@@ -934,6 +978,20 @@
                 public void run() {
                     CharBuffer.allocate(-1);
                 }});
+        try {
+            CharBuffer.allocate(-1);
+        } catch (IllegalArgumentException e) {
+            if (e.getMessage() == null) {
+                fail("Non-null IllegalArgumentException message expected attempt to allocate negative capacity buffer");
+            }
+        }
+
+
+
+
+
+
+