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ERROR [Start Level: Equinox Container: 03872104-7588-4c48-9e30-b4e53004033b][SimpleCaptchaImpl:93] bundle com.liferay.captcha.api:2.0.21 (362)[com.liferay.captcha.simplecaptcha.SimpleCaptchaImpl(1810)] : The activate method has thrown an exception java.lang.VerifyError: (class: nl/captcha/gimpy/BlockGimpyRenderer, method: gimp signature: (Ljava/awt/image/BufferedImage;)V) Incompatible argument to function at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) at java.lang.Class.getConstructor0(Class.java:3075) at java.lang.Class.newInstance(Class.java:412) at com.liferay.captcha.simplecaptcha.SimpleCaptchaImpl._getInstance(SimpleCaptchaImpl.java:500) at com.liferay.captcha.simplecaptcha.SimpleCaptchaImpl.initGimpyRenderers(SimpleCaptchaImpl.java:321) at com.liferay.captcha.simplecaptcha.SimpleCaptchaImpl.activate(SimpleCaptchaImpl.java:171) at com.liferay.captcha.simplecaptcha.SimpleCaptchaImpl.activate(SimpleCaptchaImpl.java:183) [...]