Hello I was inquiring about the class file, but it was solved by increasing the java version. But now I am getting another error I'm using the free jdk 1.7, but errors occur in the files of poi-ooxml-schemas versions 4.0 and 4.1. Class version is supported up to JDK 1.7. Is an error
POI 4.x only support JDK 8 and above https://poi.apache.org/changes.html -- see notes about 4.0.0
At this stage, it looks like 4.1.1 will be released without this fix. It should appear in 4.1.2.
sorry - added comment about 4.1.1 to wrong issue