Compilation Error - class com.atlassian.confluence.api.model.content.id.ContentId not found

[jaggayya_allamsetty]

Trying to compile the existing Plugin code using SDK 8.0.2 as part confluence version 6.15.2 upgrade. Getting below error not been able to find the api and could you please help on this.

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project AddDraftLabelAction: Compilation failure

[ERROR] /C:/Users/502075105/git/ExportWordPlugin/src/main/java/com/atlassian/plugins/tutorial/AddDraftLabelAction.java:[124,80] cannot access com.atlassian.confluence.api.model.content.id.ContentId

[ERROR]   class file for com.atlassian.confluence.api.model.content.id.ContentId not found

[ERROR]

[ERROR] -> [Help 1]

org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project AddDraftLabelAction: Compilation failure

/C:/Users/502075105/git/ExportWordPlugin/src/main/java/com/atlassian/plugins/tutorial/AddDraftLabelAction.java:[124,80] cannot access com.atlassian.confluence.api.model.content.id.ContentId

  class file for com.atlassian.confluence.api.model.content.id.ContentId not found

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)

    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)