java.lang.OutOfMemoryError in Eclipse

Trampas

I have the following method in a java application which keeps throwing the above error if I request a file which size is over 4 Megs on the line marked in bold.

Any ideas what could be causing the problem or ideas how to capture it?

Could it be a machine problem rather than a code problem?

Thank you for looking

public void run() 
{
	String docId = "";
	String docErr = " (DOCID:Unavailable)";
	ParamList paramList = new ParamList();
	Document responseDocument = null;
	Base64Coder bc = null;
	String returnXML;

	try 
	{
		MQQueue iOutputQueue = manager.accessQueue(iOutputQueueName,
		openOutputOptions, null, null, null);
		// Get a String from the message
		String requestXML = message.readString(message.getDataLength());

		// Convert the String into an XML document
		DOMParser parser = new DOMParser();
		parser.parse(new InputSource(new StringReader(requestXML)));
		responseDocument = parser.getDocument();

		// Get an MQ paramList from the XML

		paramList = MessageHandler.handle(responseDocument,
			(DocumentTraversal) responseDocument);

		// Get the Document ID from the paramList
		docId = paramList.getStringParam(FINAL_DocId);

		int xPos = requestXML.indexOf("<DOCID>", 0) + 7;
		docId = requestXML.substring(xPos);
		xPos = docId.indexOf("</DOCID>", 0);
		docId = docId.substring(0, xPos);

		docErr = " (DOCID:" + docId + ")";

		if (requestXML == null) 
		{
			// The XML is blank so do nothing
			System.out.println("Message was null");
		} else 
		{
			// The XML has something in it so let's try and get the
			// document
			// from FileNet

			byte[] returnData = null;
			// Send the byte data back in an MQ message
			MQMessage responseMessage = null;
			MQPutMessageOptions pmo = new MQPutMessageOptions();
			responseMessage = new MQMessage();
			responseMessage.correlationId = message.messageId;
			String replyTest = message.replyToQueueName;

			// Get the Document contents for the given Doc ID
			// This is returned as bytes

			returnData = is.getDocContent(docId);
			// Check the file size is not bigger than the limit
			if (returnData.length <= MAX_FILE_SIZE) 
			{
				bc = new Base64Coder();
				String es = bc.encode(returnData);
				// Create the outputmessage
				returnXML = createOuputMessage(replyTest, docId, es, is
				.getFileName(), is.getMimeType());
				//responseMessage.write(returnData);
				responseMessage.writeString(returnXML);
				iOutputQueue.put(responseMessage, pmo);
			} else 
			{
				createMQErrorMessage(docId, "ER_MAX_SIZE",
				"File size is bigger than " + MAX_FILE_SIZE + "bytes");
			}					

			// Testing... save a copy of the pdf returned from FileNet
			// to
			// disk

			/*
			 * File file = null; file = new File("C:/isra_files_test/" +
			 * docId + "_" + threadName + "_" + message.messageId +
			 * ".pdf"); // // Now write the data to the file.
			 * 
			 * try 
			{ 
				// Create an output stream to the file.
				 * FileOutputStream file_output = new FileOutputStream(
				 * file); // Wrap the FileOutputStream with a
				 * DataOutputStream DataOutputStream data_out = new
				 * DataOutputStream( file_output); // Write the data to the
				 * file data_out.write(returnData); byte[] esX =
				 * Base64Coder.decode(es); data_out.write(esX); // Close
				 * file when finished with it.. file_output.close(); 
			} 
			catch
			 * (IOException e) 
			{ 
				System.out.println("IO exception = " + * e); 
			}
			 */
		}
	} catch (MQException me) 
	{
		ExceptionHandler.handleException(me,
		"Error sending response message" + docErr);
		createMQErrorMessage(docId, "ER_MQ", me.getMessage());
	} catch (ResourceException re) 
	{
		ExceptionHandler.handleException(re,
		"Error connecting to DMS message" + docErr);
		createMQErrorMessage(docId, re.getErrorCode(), re
		.getLocalizedMessage());
	} catch (SAXException saxe) {
		ExceptionHandler.handleException(saxe, "Error in sax parser"
		+ docErr);
		createMQErrorMessage(docId, "ER_SAX", saxe.getMessage());
	} catch (IOException ioe) {
		ExceptionHandler.handleException(ioe,
		"Error reading message contents" + docErr);
		createMQErrorMessage(docId, "ER_IO", ioe.getMessage());
	} catch (Exception e) {
		ExceptionHandler.handleException(e, "Error (not recognized)"
		+ docErr);
		createMQErrorMessage(docId, "ER_E", e.getMessage());
	} finally {
		// close the MQQueueManager connection
		try 
		{
			manager.close();
		} catch (MQException me) 
		{
			ExceptionHandler.handleException(me,
			"Error closing MQQueueManager" + docErr);
		}
	[SIZE="4"][B][COLOR="Black"]}[/COLOR][/B][/SIZE]
}

lynchie

Increase your heap size -Xmx512m should do the trick

Trampas

Change the file to

-vmargs
-Xms128m
-Xmx512m
-XX:MaxPermSize=128m

and still getting the problem

lynchie

Let me guess. you changed the eclipse.ini? That only governs the IDE. Running apps within the IDE launches its own jvm. Add the above parameter to the jvm args section under the run configuration for your app.