Initial revision

From-SVN: r102074

libjava/classpath/testsuite/java.lang/OutOfMemoryErrorTest.java

@@ -0,0 +1,64 @@
+import java.util.Vector;
+
+/**
+ * Under JavaSoft's VM they arbitarily limit the amount of memory
+ * a Java application can use (though this can be overridden).  The
+ * point here is to check to see whether or not an application being
+ * run by Japhar will ever get the OutOfMemoryError or not when resources
+ * are scarce. --brian
+ */
+public class OutOfMemoryErrorTest
+{
+  public static void main(String[] argv)
+    {
+      Vector v = null;
+      Runtime r = null;
+      long free = 0, total = 0;
+      // quickly approach memory limit 1M at a time
+      try {
+	r = Runtime.getRuntime();
+	v = new Vector();
+	while(true)
+	  {
+	    v.addElement(new byte[1048576]);
+	  }
+      }
+      // out of memory error
+      catch (OutOfMemoryError oomerr1)
+	{
+	  // slowly encroach on memory limit 2 bytes+ at a time
+	  try {
+	    while(true)
+	      {
+		v.addElement(new byte[2]);
+	      }
+	  }
+	  // out of memory error
+	  catch (OutOfMemoryError oomerr2)
+	    {
+	      if (r != null)
+		{
+		  free = r.freeMemory();
+		  total = r.totalMemory();
+		  v = null;
+		  r.gc();
+// 		  System.out.println("free = " + free);
+// 		  System.out.println("total = " + total);
+		  System.out.println("PASSED: ");
+		}
+	      else
+		System.out.println("FAILED: runtime unknown");
+	    }	  
+	}
+      // generic error
+      catch (Error err)
+	{
+	  System.out.println("FAILED: unexpected error");
+	}
+      // generic exception
+      catch (Exception e)
+	{
+	  System.out.println("FAILED: unexpected exception");
+	}
+    }
+}