Print memory stats on OOM

crschnick · May 9, 2024 · 423fd36 · 423fd36
1 parent 3bd9022
commit 423fd36
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/pdxu-io/src/main/java/com/crschnick/pdxu/io/parser/TextFormatParser.java b/pdxu-io/src/main/java/com/crschnick/pdxu/io/parser/TextFormatParser.java
@@ -150,7 +150,11 @@ public final synchronized ArrayNode parse(String name, byte[] input, int start,
 
             // Special case for out of memory
             if (t instanceof OutOfMemoryError ooe) {
-                throw new ParseException("Not enough free RAM available to load file " + name + " with size " + (input.length / 1_000_000) + "Mb.", ooe);
+                long heapSize = Runtime.getRuntime().totalMemory();
+                long heapMaxSize = Runtime.getRuntime().maxMemory();
+                long heapFreeSize = Runtime.getRuntime().freeMemory();
+                var m = "" + (heapSize / 1_000_000) + "Mb / " + (heapMaxSize / 1_000_000) + "Mb (" + (heapFreeSize / 1_000_000) + "Mb free)";
+                throw new ParseException("Not enough free RAM available to load file " + name + " with size " + (input.length / 1_000_000) + "Mb. " + m, ooe);
             }
 
             throw new ParseException(t);