cannot build or test plugin

[chrispy-snps]

Expected Behavior

I am trying to build the plugin by running ./gradlew build.

Actual Behavior

I get various error messages, depending on which Java version I tried (8, 11, and 17).

Steps to Reproduce

1. Run rm -rf ~/.gradle (just to rule it out as a problem).
2. Clone this repository and enter the directory.
3. Run ./gradlew build.

Copy of the error message, log file or stack trace

In Java 8, I get:

> Task :compileJava
.../git/org.dita.index/src/main/java/org/dita/index/configuration/ConfigEntryImpl.java:34: error: package com.google.common.annotations does not exist
import com.google.common.annotations.VisibleForTesting;
                                    ^
.../git/org.dita.index/src/main/java/org/dita/index/configuration/ConfigEntryImpl.java:39: error: cannot find symbol
@VisibleForTesting
 ^
  symbol: class VisibleForTesting
.../git/org.dita.index/src/main/java/org/dita/index/configuration/IndexConfiguration.java:37: error: cannot access XMLUtils
import org.dita.dost.util.XMLUtils;
                         ^
  bad class file: .../.gradle/caches/modules-2/files-2.1/org.dita-ot/dost/4.1.2/2355a00c6680e8d0a12c9fec1409fe477e3f33b5/dost-4.1.2.jar(org/dita/dost/util/XMLUtils.class)
    class file has wrong version 61.0, should be 52.0
    Please remove or make sure it appears in the correct subdirectory of the classpath.

I get other errors with Java 11 and Java 17.

Environment

• Operating system and version: Linux (Ubuntu 20.04 LTS)
• Java version: 8, 11, 17

[jelovirt]

Fixed by #3

[chrispy-snps]

Thanks @jelovirt!