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Re: compiler runs out of memory
> Check the JVM. Which Jdk ? The one from Sun, or Microsoft.
> Try the -X
I'm using the JVM with JBuilder from Borland. I tried the switch like this
"-Xmx50m" (it seems the Windows task manager was not providing useful
statistics, but I found a method that finds the amount of memory
availiable to the JVM). This works in limiting the JVM's memory use, but I
still get the same OutOfMemoryError. How much memory is needed for the
simplec example found on the sablecc site to work? Here is the method I
used for seeing how much is availiable:
public static final int MEGABYTE = 1048576;
public static long testMemory(int maximumMegabytesToTest)
//For me, maximumMegabytesToTest was the value given by
//the task mangager.
//Hold on to memory, or it will be garbage collected
Object memoryHolder = new Object[maximumMegabytesToTest];
int count = 0;
for (; count < memoryHolder.length; count++)
memoryHolder[count] = new byte[MEGABYTE];
long highWater = Runtime.getRuntime().totalMemory();
// System.out.println("High water in bytes: "
// + highWater);
// System.out.println("Megabytes allocatable in
// megabytes: " + count);
memoryHolder = null; //release for GC
//We know we could allocate "count" megabytes and
//have a high water mark of "highWater". Return
//whichever you prefer.