Looking at your output, that appears to be from a 32 bit version of Java. You may want to install the 64 bit version of Java.
You may also want to check
message #412 in the epubcheck plugin thread about forcing the path to the java executable. The disadvantage to this is that you will need to update the path any time that Java is updated.
For the 64 bit version of Java 1.8.0_311, the path would be something like:
"java_path": "C:/Program Files/Java/jre1.8.0_311/bin/java.exe",