2015-12-28 12:17 GMT+03:00 Kien Vo <votrik...@outlook.com>: > My current xerces version is 2.6.1. > My app used Tomcat 7 without any issues. But upgrading to Tomcat 8 got that > error. > Is there any way to by-pass this error? > >> Subject: Re: Fail to start Tomcat 8 with xerces library >> To: users@tomcat.apache.org >> From: ma...@apache.org >> Date: Mon, 28 Dec 2015 07:58:14 +0000 >> >> On 28/12/2015 07:24, Kien Vo wrote: >> > Hi all, >> > >> > I encountered this error when starting Tomcat 8 with >> > xerces library. Any help appreciated! >> > >> > I put xerces.jar in this folder C:\tomcat8\endorsed. If I >> > don't put it there, Tomcat does not load that library at all. My >> > application >> > gets "NoSuchMethodException". >> > >> > Tomcat server: 8.0.30.0 >> > JVM Version: >> > 1.7.0_51-b13 (32 bit) >> > OS Name: >> > Windows 7 (64 bit) >> > OS Version: >> > 6.1 >> >> That version information is helpful but it doesn't include the Xerces >> version. There have been quite a few Xerces releases so the version is >> important. >> >> > org.w3c.dom.ls.LSException: >> > java.lang.NullPointerException >> > >> > at >> > com.sun.org.apache.xml.internal.serialize.DOMSerializerImpl.writeToString(DOMSerializerImpl.java:534) >> > >> > at >> > org.apache.catalina.core.JreMemoryLeakPreventionListener.lifecycleEvent(JreMemoryLeakPreventionListener.java:447) >> >> Have you looked at line 447 of Tomcat's JreMemoryLeakPreventionListener? >> If not, take a look. If yes, you should be able to ask a more specific >> question. >>
Rules: http://tomcat.apache.org/lists.html#tomcat-users -> 6. Top-posting is bad. Placing the library into "\endorsed" directory means that you are trying to replace JRE-provided implementation of XML APIs with a 3rd party one. If you are doing so, you must use XML library that implements the same set of APIs and the same specification level as implemented in JRE. Xerces-J 2.6.1 was released in January 2004, so there is no wonder that it cannot be used as replacement implementation and fails in strange ways. Try with the current version (2.11.0). http://xerces.apache.org/#xerces2-j Actually placing something into "\endorsed" does not replace the existing library inside of JRE, but just places the new library in front of bootstrap classpath. So in your case the JRE operates on a mix of up-to-date and historic classes. Best regards, Konstantin Kolinko --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
