improve javadocs

java/core/src/main/java/org/brapi/schematools/core/brapischema/BrAPISchemaReaderException.java

@@ -1,5 +1,8 @@
 package org.brapi.schematools.core.brapischema;
 
+/**
+ * Exception thrown during the reading of BrAPI JSON Schema
+ */
 public class BrAPISchemaReaderException extends Exception {
     public BrAPISchemaReaderException(Exception e) {
         super(e);

java/core/src/main/java/org/brapi/schematools/core/graphql/metadata/GraphQLGeneratorMetadata.java

@@ -3,6 +3,9 @@
 import lombok.Getter;
 import lombok.Setter;
 
+/**
+ * Provides metadata for the GraphQL generation
+ */
 @Getter
 @Setter
 public class GraphQLGeneratorMetadata {

java/core/src/main/java/org/brapi/schematools/core/graphql/options/GraphQLGeneratorOptions.java

@@ -86,4 +86,6 @@ public boolean isGeneratingMutationType() {
     public boolean isUsingIDType() {
         return ids != null && ids.isUsingIDType();
     }
+
+    public static class GraphQLGeneratorOptionsBuilder{}
 }

java/core/src/main/java/org/brapi/schematools/core/model/BrAPIAllOfType.java

@@ -5,6 +5,9 @@
 
 import java.util.List;
 
+/**
+ * Represents a type that takes all of properties from the wrapped types
+ */
 @Builder(toBuilder = true)
 @Value
 public class BrAPIAllOfType implements BrAPIClass {

java/core/src/main/java/org/brapi/schematools/core/openapi/options/OpenAPIGeneratorOptions.java

@@ -206,4 +206,6 @@ public String getPluralFor(String name) {
     public String getSingularForProperty(String name) {
         return toSingular(name) ;
     }
+
+    public static class OpenAPIGeneratorOptionsBuilder {}
 }