[FIXED] NetBeans is Showing Error file could cause outofmemoryerror netbeans

Issue

Hello I am using netbeans editor for my Java Desktop application and i am getting error i mean warning like this

opening this file could cause outofmemoryerror netbeans

This warning shows up because I have a file containing code which is >1MB. And after that I am not able to see error too its not pointing so how could i fix it?

Solution

What is the file size of the file you're trying to open? The only time I have seen this is when the file Netbeans is going to open is relatively large (not sure what threshold Netbeans uses to show this warning).

If it's a large text file with data you're reading (or writing) with your software, open it outside of Netbeans with something like Notepad++.

Update

Okay, so it's clear now that a file that contains code is relatively large, and Netbeans is already warning you that it might be too large to be opened. I strongly recommend that you split that file into multiple files (multiple classes maybe)?

Example:

Old situation

public class Class1
{
    public void doSomething()
    {
        //do stuff (1)
        //do stuff (2)
    }
}

New situation

public class Class1
{

    private NewClass1 newClass1;
    private NewClass2 newClass2;
    private JComponent jComponent;

    public Class1()
    {
        newClass1 = new NewClass1();
        newClass2 = new NewClass2();
        //instantiating jComponent
    }

    public void doSomething()
    {
        newClass1.doSomethingSmaller(jComponent); //possibly with some return value
        newClass2.doSomethingSmallerToo(jComponent); //possibly with some return value
    }
}

public class NewClass1
{
    public void doSomethingSmaller(JComponent jComponent)
    {
        //do stuff (1)
        jComponent.doStuff();
    }
}

public class NewClass2
{
    public void doSomethingSmallerToo(JComponent jComponent)
    {
        //do stuff (2)
        jComponent.doOtherStuff();
    ]
}

Those new classes should then be in separate files, which reduces the size of your file. It also encourages reusing (parts of) your code in other places in your code.

Answered By - Stefan