8048192: (bf) Out of direct buffer memory message should include the limits

[Brian Burkhalter]

https://bugs.openjdk.java.net/browse/JDK-8048192 <https://bugs.openjdk.java.net/browse/JDK-8048192>

One possible solution is given below but I am not sure whether composing such an error string is desirable during bootstrap / startup. If this is undesirable then perhaps the issue should be resolved as WNF?

Thanks,

Brian

--- a/src/java.base/share/classes/java/nio/Bits.java
+++ b/src/java.base/share/classes/java/nio/Bits.java
@@ -172,7 +172,11 @@
             }
 
             // no luck
-            throw new OutOfMemoryError("Direct buffer memory");
+            throw new OutOfMemoryError
+                ("Direct buffer memory: MAX_MEMORY = " + MAX_MEMORY
+                + ", RESERVED_MEMORY = " + RESERVED_MEMORY.get()
+                + ", TOTAL_CAPACITY = " + TOTAL_CAPACITY.get()
+                + ", size = " + size + ", cap = " + cap);
 
         } finally {

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