Version: 2.0.2 The helper class com.jogamp.opengl.util.glsl.ShaderProgram sometimes ignores the specified PrintStream and dumps errors to System.err. The methods in particular that exhibit this behavior are: ShaderProgram.replaceShader() and ShaderProgram.link() when they call ShaderUtil.isProgramLinkStatusValid().
Thank you John. Can you provide a patch (git pull request or git patch) which I can merge ? Since you seem to have analyzed this issue thoroughly .. you may also fix it?
thank you