fix empty input params

.github/workflows/maven-library-deploy.yml

@@ -2,6 +2,17 @@ name: Maven Deploy Package
 
 on:
   workflow_call:
+    inputs:
+      java-version:
+        description: 'Java version'
+        required: false
+        default: "15"
+        type: string
+      java-distribution:
+        description: 'Java distribution'
+        required: false
+        default: "adopt"
+        type: string
     secrets:
       server-username:
         required: true

.github/workflows/maven-thrift-build.yml

@@ -2,6 +2,17 @@ name: Maven Build Artifact
 
 on:
   workflow_call:
+    inputs:
+      java-version:
+        description: 'Java version'
+        required: false
+        default: "15"
+        type: string
+      java-distribution:
+        description: 'Java distribution'
+        required: false
+        default: "adopt"
+        type: string
 
 jobs:
   build:
@@ -16,8 +27,8 @@ jobs:
       - name: Set up Maven
         uses: actions/setup-java@v2
         with:
-          java-version: '15'
-          distribution: 'adopt'
+          java-version: ${{ inputs.java-version }}
+          distribution: ${{ inputs.java-distribution }}
           cache: 'maven'
       - name: Retrieve commit info
         run: |