Build failure

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:
1. git clone https://github.com/DTStack/flinkx
2. cd flinkx
3. mvn clean package -DskipTests -X
4. See error

**Expected behavior**
I get the following error:

[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.diffplug.spotless:spotless-maven-plugin:2.4.2:check (spotless-check) on project flinkx-core: Execution spotless-check of goal com.diffplug.spotless:spotless-maven-plugin:2.4.2:check failed: java.lang.reflect.InvocationTargetException: class com.google.googlejavaformat.java.RemoveUnusedImports (in unnamed module @0x147efd9) cannot access class com.sun.tools.javac.util.Context (in module jdk.compiler) because module jdk.compiler does not export com.sun.tools.javac.util to unnamed module @0x147efd9 -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.diffplug.spotless:spotless-maven-plugin:2.4.2:check (spotless-check) on project flinkx-core: Execution spotless-check of goal com.diffplug.spotless:spotless-maven-plugin:2.4.2:check failed: java.lang.reflect.InvocationTargetException
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor