Captcha image doesn't render

Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.

Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.

*Except Fisheye and Crucible

Symptoms

The captcha image is not loaded and the following stack trace can be seen in the atlassian-bitbucket.log:

2014-12-15 09:41:56,029 ERROR [http-bio-7990-exec-14] @12Q0SCVx581x330x2 1r0vx13 XX.XX.XX.XX,0:0:0:0:0:0:0:1 "GET /captcha HTTP/1.1" c.a.s.i.w.HandlerExceptionResolverImpl Error creating bean with name 'imageCaptchaServicePrototype' defined in class path resource [bitbucket-context.xml]: Cannot create inner bean 'com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine#4ff29711' of type [com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine#4ff29711' defined in class path resource [bitbucket-context.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine]: Constructor threw exception; nested exception is java.lang.NullPointerException
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'imageCaptchaServicePrototype' defined in class path resource [bitbucket-context.xml]: Cannot create inner bean 'com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine#4ff29711' of type [com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine#4ff29711' defined in class path resource [bitbucket-context.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine]: Constructor threw exception; nested exception is java.lang.NullPointerException
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:290) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
	at com.atlassian.bitbucket.internal.web.users.CaptchaController.viewCaptcha(CaptchaController.java:29) ~[CaptchaController.class:na]
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:25) [applinks-plugin-4.2.2_1402956146000.jar:na]
	at com.atlassian.bitbucket.internal.spring.security.Bitbucket ServerAuthenticationFilter.doFilter(Bitbucket ServerAuthenticationFilter.java:111) [Bitbucket ServerAuthenticationFilter.class:na]
	at com.atlassian.bitbucket.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doInsideSpringSecurityChain(BeforeLoginPluginAuthenticationFilter.java:111) [BeforeLoginPluginAuthenticationFilter.class:na]
	at com.atlassian.bitbucket.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doFilter(BeforeLoginPluginAuthenticationFilter.java:77) [BeforeLoginPluginAuthenticationFilter.class:na]
	at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:100) [atlassian-trusted-apps-core-3.0.6.jar:na]
	at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:69) [atlassian-oauth-service-provider-plugin-1.9.2_1399475174000.jar:na]
	at com.hazelcast.web.WebFilter$RequestWrapper$1.forward(WebFilter.java:525) [hazelcast-wm-3.3-RC2.jar:3.3-RC2]
	at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:100) [atlassian-trusted-apps-core-3.0.6.jar:na]
	at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:69) [atlassian-oauth-service-provider-plugin-1.9.2_1399475174000.jar:na]
	at com.atlassian.analytics.client.filter.DefaultAnalyticsFilter.doFilter(DefaultAnalyticsFilter.java:33) [analytics-client-3.35_1406650100000.jar:na]
	at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31) [atlassian-core-4.6.15.jar:na]
	at com.atlassian.bitbucket.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doBeforeBeforeLoginFilters(BeforeLoginPluginAuthenticationFilter.java:89) [BeforeLoginPluginAuthenticationFilter.class:na]
	at com.atlassian.bitbucket.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doFilter(BeforeLoginPluginAuthenticationFilter.java:75) [BeforeLoginPluginAuthenticationFilter.class:na]
	at com.atlassian.bitbucket.internal.request.DefaultRequestManager.doAsRequest(DefaultRequestManager.java:84) [bitbucket-service-impl-3.2.2.jar:na]
	at com.hazelcast.web.WebFilter.doFilter(WebFilter.java:446) [hazelcast-wm-3.3-RC2.jar:3.3-RC2]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [na:1.7.0_03-icedtea]
	at java.lang.Thread.run(Thread.java:722) [na:1.7.0_03-icedtea]
	... 240 frames trimmed
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine#4ff29711' defined in class path resource [bitbucket-context.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine]: Constructor threw exception; nested exception is java.lang.NullPointerException
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1076) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
	... 19 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine]: Constructor threw exception; nested exception is java.lang.NullPointerException
	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:164) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
	... 19 common frames omitted
Caused by: java.lang.NullPointerException: null
	at sun.awt.X11FontManager.getDefaultPlatformFont(X11FontManager.java:779) ~[na:1.7.0_03-icedtea]
	at sun.font.SunFontManager$2.run(SunFontManager.java:428) ~[na:1.7.0_03-icedtea]
	at java.security.AccessController.doPrivileged(Native Method) ~[na:1.7.0_03-icedtea]
	at sun.font.SunFontManager.<init>(SunFontManager.java:371) ~[na:1.7.0_03-icedtea]
	at sun.awt.X11FontManager.<init>(X11FontManager.java:32) ~[na:1.7.0_03-icedtea]
	at java.lang.Class.newInstance0(Class.java:372) ~[na:1.7.0_03-icedtea]
	at java.lang.Class.newInstance(Class.java:325) ~[na:1.7.0_03-icedtea]
	at sun.font.FontManagerFactory$1.run(FontManagerFactory.java:80) ~[na:1.7.0_03-icedtea]
	at java.security.AccessController.doPrivileged(Native Method) ~[na:1.7.0_03-icedtea]
	at sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:71) ~[na:1.7.0_03-icedtea]
	at java.awt.Font.getFont2D(Font.java:489) ~[na:1.7.0_03-icedtea]
	at java.awt.Font.canDisplay(Font.java:1946) ~[na:1.7.0_03-icedtea]
	at com.octo.captcha.component.image.fontgenerator.RandomFontGenerator.checkFontCanDisplayCharacters(RandomFontGenerator.java:223) ~[jcaptcha-2.0-alpha-1.jar:na]
	at com.octo.captcha.component.image.fontgenerator.RandomFontGenerator.cleanFontList(RandomFontGenerator.java:179) ~[jcaptcha-2.0-alpha-1.jar:na]
	at com.octo.captcha.component.image.fontgenerator.RandomFontGenerator.initializeFonts(RandomFontGenerator.java:94) ~[jcaptcha-2.0-alpha-1.jar:na]
	at com.octo.captcha.component.image.fontgenerator.RandomFontGenerator.<init>(RandomFontGenerator.java:81) ~[jcaptcha-2.0-alpha-1.jar:na]
	at com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine.buildInitialFactories(Bitbucket ServerCaptchaEngine.java:46) ~[Bitbucket ServerCaptchaEngine.class:na]
	at com.octo.captcha.engine.image.ListImageCaptchaEngine.<init>(ListImageCaptchaEngine.java:24) ~[jcaptcha-2.0-alpha-1.jar:na]
	at com.atlassian.bitbucket.internal.web.util.captcha.Bitbucket ServerCaptchaEngine.<init>(Bitbucket ServerCaptchaEngine.java:29) ~[Bitbucket ServerCaptchaEngine.class:na]
	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
	... 19 common frames omitted

Cause

This is caused because of missing fonts, due to which the application cannot perform graphics rendering. Although we support OpenJDK it's likely that this issue was caused because the package manager used to install Java didn't install "Java fonts".

Resolution

Ubuntu/Debian:

Install the JDK Fonts package on top of the Oracle JDK by running:
1sudo apt-get install fonts-dejavu-core
Restart Bitbucket Server.

CentOS:

Install the JDK Fonts package on top of the Oracle JDK by running:
1 2 3 4 5 6 7sudo yum install \ dejavu-lgc-sans-fonts \ dejavu-lgc-sans-mono-fonts \ dejavu-lgc-serif-fonts \ dejavu-sans-fonts \ dejavu-sans-mono-fonts \ dejavu-serif-fonts
Restart Bitbucket Server.

Check the Supported platforms page to ensure a compatible environment.

You may consider adding also fontconfig packageif it was not installed automatically after running the last command).

Updated on April 15, 2025

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