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Processing 4.x releases for Java 17

Results 218 processing4 issues
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java. lang. NullPointerException: Cannot invoke "processing.app.SketchCode.isModified ()" because "this.current" is null at [processing.app](http://processing.app/). Sketch. setModified (Sketch. java: 760) at processing. mode. java. JavaEditor. (JavaEditor. java: 119) at processing. mode. java....

Fixed : #811 added print(); to the PMatrix interface; printing a PMatrix now possible

Since `PMatrix2D` and `PMatrix3D` both have a `print()` method with matching signatures, it would make sense for their common interface `PMatrix` to have this method. Right now I have to...

adds a way to set a custom icon for the generated executable file on windows and macos simply add a line in sketch.properties icon.windows= or icon.macos= follow the = with...

## Description I'm logging this issue here in response to @benfry's request: https://github.com/jdf/processing.py/issues/390#issuecomment-1013791048 The Processing 4 PDE isn't displaying any errors/warnings/print lines in the console using Python Mode -- ![129270358-c2b3d112-008c-4139-ba9e-29adaffe1b33](https://user-images.githubusercontent.com/9858145/149678929-81220f28-b71e-4c41-a8ab-0787669c58b5.png)...

## Description `keyPressed` is `true` with no keys actively pressed after doing a specific sequence of key presses with `SHIFT` and a letter key. It also occurs with `CTRL` and...

Help Wanted
OpenGL

Hi, 1) sorry if it's not a bug but setFill and setTint in PShape.java seems to code the same behavior for two different attributes but... setTint(int fill) : public void...

Superceeds https://github.com/processing/processing4/pull/747, https://github.com/processing/processing4/pull/748, and https://github.com/processing/processing4/pull/749. This is for Google Summer of Code project on friendly error messages (see https://github.com/processing/processing4/issues/741). This is led by @WillRabalais04.

Fixed : https://github.com/benfry/processing4/issues/723 Initial error : When filter(BLUR, param) is called with param above a certain amount relative to the image size, an ArithmeticException is thrown for division by zero....