java.lang.AbstractMethodError , Get a node's inner XML as String in Java DOM

Question

https://stackoverflow.com/a/5948326/9454856

Exception in thread "main" java.lang.AbstractMethodError: org.apache.xerces.dom.CoreDOMImplementationImpl.createLSSerializer()Lorg/w3c/dom/ls/LSSerializer;

Why am I getting this error?

Answer 1

The definition of AbstractMethodError says:

Thrown when an application tries to call an abstract method. Normally, this error is caught by the compiler; this error can only occur at run time if the definition of some class has incompatibly changed since the currently executing method was last compiled.

So you've got some kind of configuration or version control problem in your code, probably you're picking up a different version of Apache Xerces at run time from the version used at compile time; though it also suggests you might be straying outside the stable API into calling methods that weren't really intended for public use.

As I can't see your code, there's a lot of guesswork here. The next stage in debugging would be to look at a stack trace.