It says there is not enough Java heap space

KIM_JINGEUN · March 28, 2024, 12:29am

hello.
When I work on the vision screen and run it on the client, the following error message appears and the screen does not change.

Traceback (most recent call last):
  File "<event:actionPerformed>", line 6, in <module>
java.lang.OutOfMemoryError: Java heap space
	at java.base/java.util.ArrayList.grow(Unknown Source)
	at java.base/java.util.ArrayList.grow(Unknown Source)
	at java.base/java.util.ArrayList.add(Unknown Source)
	at java.base/java.util.ArrayList.add(Unknown Source)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.handlers.ObjectDeserializationHandler.endObject(ObjectDeserializationHandler.java:52)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$ParseContext.foundObject(XMLDeserializer.java:960)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$ParseContext.onRef(XMLDeserializer.java:908)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$MultiParseContext.onRef(XMLDeserializer.java:773)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:121)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.parse(BinaryParser.java:51)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer.deserializeMultiple(XMLDeserializer.java:594)
	at com.inductiveautomation.factorypmi.application.components.util.ComponentVisitor$TemplatePreDeserializeVisitor.loadInstances(ComponentVisitor.java:202)
	at com.inductiveautomation.factorypmi.application.FPMIWindow.initializeUIRoot(FPMIWindow.java:310)
	at com.inductiveautomation.factorypmi.application.FPMIWindow.initialize(FPMIWindow.java:284)
	at com.inductiveautomation.factorypmi.application.VisionDesktop$RuntimeWindowOpener.openWindow(VisionDesktop.java:540)
	at com.inductiveautomation.factorypmi.application.VisionDesktop.openWindow(VisionDesktop.java:192)
	at com.inductiveautomation.factorypmi.application.VisionDesktop.openWindow(VisionDesktop.java:184)
	at com.inductiveautomation.factorypmi.application.script.builtin.NavUtilities.lambda$swapWindow$0(NavUtilities.java:197)
java.lang.OutOfMemoryError: java.lang.OutOfMemoryError: Java heap space

	at org.python.core.Py.JavaError(Py.java:545)
	at org.python.core.Py.JavaError(Py.java:536)
	at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:192)
	at com.inductiveautomation.ignition.common.script.ScriptManager$ReflectedInstanceFunction.__call__(ScriptManager.java:553)
	at org.python.core.PyObject.__call__(PyObject.java:461)
	at org.python.core.PyObject.__call__(PyObject.java:465)
	at org.python.pycode._pyx5.f$0(<event:actionPerformed>:6)
	at org.python.pycode._pyx5.call_function(<event:actionPerformed>)
	at org.python.core.PyTableCode.call(PyTableCode.java:173)
	at org.python.core.PyCode.call(PyCode.java:18)
	at org.python.core.Py.runCode(Py.java:1703)
	at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:804)
	at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.runActions(ActionAdapter.java:207)
	at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.invoke(ActionAdapter.java:300)
	at com.inductiveautomation.factorypmi.application.binding.action.RelayInvocationHandler.invoke(RelayInvocationHandler.java:57)
	at jdk.proxy2/jdk.proxy2.$Proxy51.actionPerformed(Unknown Source)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
	at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
	at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
	at java.desktop/javax.swing.DefaultButtonModel.setPressed(Unknown Source)
	at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
	at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
	at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
	at java.desktop/java.awt.Component.processMouseEvent(Unknown Source)
	at java.desktop/javax.swing.JComponent.processMouseEvent(Unknown Source)
	at java.desktop/java.awt.Component.processEvent(Unknown Source)
	at java.desktop/java.awt.Container.processEvent(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue$5.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$5.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.OutOfMemoryError: Java heap space
	at java.base/java.util.ArrayList.grow(Unknown Source)
	at java.base/java.util.ArrayList.grow(Unknown Source)
	at java.base/java.util.ArrayList.add(Unknown Source)
	at java.base/java.util.ArrayList.add(Unknown Source)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.handlers.ObjectDeserializationHandler.endObject(ObjectDeserializationHandler.java:52)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$ParseContext.foundObject(XMLDeserializer.java:960)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$ParseContext.onRef(XMLDeserializer.java:908)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$MultiParseContext.onRef(XMLDeserializer.java:773)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:121)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.parse(BinaryParser.java:51)
	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer.deserializeMultiple(XMLDeserializer.java:594)
	at com.inductiveautomation.factorypmi.application.components.util.ComponentVisitor$TemplatePreDeserializeVisitor.loadInstances(ComponentVisitor.java:202)
	at com.inductiveautomation.factorypmi.application.FPMIWindow.initializeUIRoot(FPMIWindow.java:310)
	at com.inductiveautomation.factorypmi.application.FPMIWindow.initialize(FPMIWindow.java:284)
	at com.inductiveautomation.factorypmi.application.VisionDesktop$RuntimeWindowOpener.openWindow(VisionDesktop.java:540)
	at com.inductiveautomation.factorypmi.application.VisionDesktop.openWindow(VisionDesktop.java:192)
	at com.inductiveautomation.factorypmi.application.VisionDesktop.openWindow(VisionDesktop.java:184)
	at com.inductiveautomation.factorypmi.application.script.builtin.NavUtilities.lambda$swapWindow$0(NavUtilities.java:197)

Ignition v8.1.37 (b2024013011)
Java: Azul Systems, Inc. 17.0.9

Did this happen because the screen capacity was too large?

In this case, is it because the heap memory is small? Please tell me the solution.
thank you

pturmel · March 28, 2024, 12:32am

Yes, you client is running out of memory (heap) when trying to open a window.

In the project properties, there are settings for starting and maximum Vision client memory allowance. You need to increase the project's maximum allowance for your Vision clients.

KIM_JINGEUN · March 28, 2024, 12:48am

Is there any other limit to the maximum memory allowed besides the hardware limit?

pturmel · March 28, 2024, 12:49am

Yes, the project properties I just described.

From the designer top menu => Project => Project Properties => Vision => Launching

At the bottom of that tab, "Client Memory" => "Initial" and "Maximum"

KIM_JINGEUN · March 28, 2024, 1:49am

I know I can change it there. I just wanted to know how large I could increase the maximum and minimum memory.

pturmel · March 28, 2024, 2:03am

Well, the maximum needs to fit the physical RAM of your client machines, with some left over for the OS. It should be at about twice the average heap usage of the running client. The minimum should be enough to cover all the needs of the windows that open right away on startup.

Study the runtime diagnostics available from a client's help menu.