Spring Security SAML extension java.lang.AbstractMethodError

Question

Hi there all I am trying to integrate SAML extension to my project and I got the following exception when building it, I am using Spring 4.1.5

java.lang.AbstractMethodError: javax.xml.parsers.DocumentBuilderFactory.setFeature(Ljava/lang/String;Z)V at org.opensaml.xml.parse.BasicParserPool.setFeatures(BasicParserPool.java:559) ~[xmltooling-1.4.1.jar:na] at org.opensaml.xml.parse.BasicParserPool.initializePool(BasicParserPool.java:507) ~[xmltooling-1.4.1.jar:na] at org.opensaml.xml.parse.BasicParserPool.(BasicParserPool.java:141) ~[xmltooling-1.4.1.jar:na] at org.opensaml.xml.XMLConfigurator.(XMLConfigurator.java:88) ~[xmltooling-1.4.1.jar:1.4.1] at org.opensaml.xml.XMLConfigurator.(XMLConfigurator.java:74) ~[xmltooling-1.4.1.jar:1.4.1] at org.opensaml.DefaultBootstrap.initializeXMLTooling(DefaultBootstrap.java:199) ~[opensaml-2.6.1.jar:1.0.1.RELEASE] at org.opensaml.DefaultBootstrap.initializeXMLTooling(DefaultBootstrap.java:186) ~[opensaml-2.6.1.jar:1.0.1.RELEASE] at org.opensaml.DefaultBootstrap.bootstrap(DefaultBootstrap.java:92) ~[opensaml-2.6.1.jar:1.0.1.RELEASE] at org.opensaml.PaosBootstrap.bootstrap(PaosBootstrap.java:27) ~[spring-security-saml2-core-1.0.1.RELEASE.jar:1.0.1.RELEASE] at org.springframework.security.saml.SAMLBootstrap.postProcessBeanFactory(SAMLBootstrap.java:42) ~[spring-security-saml2-core-1.0.1.RELEASE.jar:1.0.1.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:265) ~[spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:177) ~[spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:606) ~[spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:462) ~[spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686) ~[spring-boot-1.2.3.RELEASE.jar:1.2.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:320) ~[spring-boot-1.2.3.RELEASE.jar:1.2.3.RELEASE] at org.springframework.boot.test.SpringApplicationContextLoader.loadContext(SpringApplicationContextLoader.java:101) [spring-boot-1.2.3.RELEASE.jar:1.2.3.RELEASE] at org.springframework.test.context.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:68) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:86) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.DefaultTestContext.getApplicationContext(DefaultTestContext.java:72) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:170) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:110) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:212) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:200) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:259) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.11.jar:na] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:261) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:219) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) [junit-4.11.jar:na] at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) [junit-4.11.jar:na] at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) [junit-4.11.jar:na] at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) [junit-4.11.jar:na] at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) [junit-4.11.jar:na] at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.junit.runners.ParentRunner.run(ParentRunner.java:309) [junit-4.11.jar:na] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163) [spring-test-4.1.5.RELEASE.jar:4.1.5.RELEASE] at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252) [surefire-junit4-2.12.4.jar:2.12.4] at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141) [surefire-junit4-2.12.4.jar:2.12.4] at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112) [surefire-junit4-2.12.4.jar:2.12.4] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_31] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_31] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_31] at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_31] at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189) [surefire-api-2.12.4.jar:2.12.4] at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165) [surefire-booter-2.12.4.jar:2.12.4] at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85) [surefire-booter-2.12.4.jar:2.12.4] at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115) [surefire-booter-2.12.4.jar:2.12.4] at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75) [surefire-booter-2.12.4.jar:2.12.4]

Answer 1

If you probably have to deal with this exception when adapting the saml extension to your spring project make sure that you have added the following libraries to maven

    <dependency>
        <groupId>xerces</groupId>
        <artifactId>xercesImpl</artifactId>
        <version>2.10.0</version>
    </dependency>
    <dependency>
        <groupId>xalan</groupId>
        <artifactId>xalan</artifactId>
        <version>2.7.1</version>
    </dependency>

Answer 2

I also found that I needed to place the xerces and xalan dependencies before the xom dependency. There was a xom dependency in the pom.xml, which was adding older versions of the xerces and xalan jar into the classpath ahead of the newer versions that were called out in the pom.xml (as above).