[SPARK-15290][BUILD] Move annotations, like @Since / @DeveloperApi, into spark-tags

## What changes were proposed in this pull request?

(See https://github.com/apache/spark/pull/12416 where most of this was already reviewed and committed; this is just the module structure and move part. This change does not move the annotations into test scope, which was the apparently problem last time.)

Rename `spark-test-tags` -> `spark-tags`; move common annotations like `Since` to `spark-tags`

## How was this patch tested?

Jenkins tests.

Author: Sean Owen <sowen@cloudera.com>

Closes #13074 from srowen/SPARK-15290.

7 files changed, 0 insertions, 223 deletions

diff --git a/core/src/main/java/org/apache/spark/annotation/AlphaComponent.java b/core/src/main/java/org/apache/spark/annotation/AlphaComponent.java
deleted file mode 100644
index db7b25c727..0000000000
--- a/core/src/main/java/org/apache/spark/annotation/AlphaComponent.java
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.spark.annotation;
-
-import java.lang.annotation.*;
-
-/**
- * A new component of Spark which may have unstable API's.
- *
- * NOTE: If there exists a Scaladoc comment that immediately precedes this annotation, the first
- * line of the comment must be ":: AlphaComponent ::" with no trailing blank line. This is because
- * of the known issue that Scaladoc displays only either the annotation or the comment, whichever
- * comes first.
- */
-@Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.TYPE, ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER,
-        ElementType.CONSTRUCTOR, ElementType.LOCAL_VARIABLE, ElementType.PACKAGE})
-public @interface AlphaComponent {}
diff --git a/core/src/main/java/org/apache/spark/annotation/DeveloperApi.java b/core/src/main/java/org/apache/spark/annotation/DeveloperApi.java
deleted file mode 100644
index 0ecef6db0e..0000000000
--- a/core/src/main/java/org/apache/spark/annotation/DeveloperApi.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.spark.annotation;
-
-import java.lang.annotation.*;
-
-/**
- * A lower-level, unstable API intended for developers.
- *
- * Developer API's might change or be removed in minor versions of Spark.
- *
- * NOTE: If there exists a Scaladoc comment that immediately precedes this annotation, the first
- * line of the comment must be ":: DeveloperApi ::" with no trailing blank line. This is because
- * of the known issue that Scaladoc displays only either the annotation or the comment, whichever
- * comes first.
- */
-@Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.TYPE, ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER,
-        ElementType.CONSTRUCTOR, ElementType.LOCAL_VARIABLE, ElementType.PACKAGE})
-public @interface DeveloperApi {}
diff --git a/core/src/main/java/org/apache/spark/annotation/Experimental.java b/core/src/main/java/org/apache/spark/annotation/Experimental.java
deleted file mode 100644
index ff81202914..0000000000
--- a/core/src/main/java/org/apache/spark/annotation/Experimental.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.spark.annotation;
-
-import java.lang.annotation.*;
-
-/**
- * An experimental user-facing API.
- *
- * Experimental API's might change or be removed in minor versions of Spark, or be adopted as
- * first-class Spark API's.
- *
- * NOTE: If there exists a Scaladoc comment that immediately precedes this annotation, the first
- * line of the comment must be ":: Experimental ::" with no trailing blank line. This is because
- * of the known issue that Scaladoc displays only either the annotation or the comment, whichever
- * comes first.
- */
-@Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.TYPE, ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER,
-        ElementType.CONSTRUCTOR, ElementType.LOCAL_VARIABLE, ElementType.PACKAGE})
-public @interface Experimental {}
diff --git a/core/src/main/java/org/apache/spark/annotation/Private.java b/core/src/main/java/org/apache/spark/annotation/Private.java
deleted file mode 100644
index 9082fcf0c8..0000000000
--- a/core/src/main/java/org/apache/spark/annotation/Private.java
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.spark.annotation;
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-/**
- * A class that is considered private to the internals of Spark -- there is a high-likelihood
- * they will be changed in future versions of Spark.
- *
- * This should be used only when the standard Scala / Java means of protecting classes are
- * insufficient.  In particular, Java has no equivalent of private[spark], so we use this annotation
- * in its place.
- *
- * NOTE: If there exists a Scaladoc comment that immediately precedes this annotation, the first
- * line of the comment must be ":: Private ::" with no trailing blank line. This is because
- * of the known issue that Scaladoc displays only either the annotation or the comment, whichever
- * comes first.
- */
-@Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.TYPE, ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER,
-        ElementType.CONSTRUCTOR, ElementType.LOCAL_VARIABLE, ElementType.PACKAGE})
-public @interface Private {}
diff --git a/core/src/main/scala/org/apache/spark/annotation/Since.scala b/core/src/main/scala/org/apache/spark/annotation/Since.scala
deleted file mode 100644
index af483e361e..0000000000
--- a/core/src/main/scala/org/apache/spark/annotation/Since.scala
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.spark.annotation
-
-import scala.annotation.StaticAnnotation
-import scala.annotation.meta._
-
-/**
- * A Scala annotation that specifies the Spark version when a definition was added.
- * Different from the `@since` tag in JavaDoc, this annotation does not require explicit JavaDoc and
- * hence works for overridden methods that inherit API documentation directly from parents.
- * The limitation is that it does not show up in the generated Java API documentation.
- */
-@param @field @getter @setter @beanGetter @beanSetter
-private[spark] class Since(version: String) extends StaticAnnotation
diff --git a/core/src/main/scala/org/apache/spark/annotation/package-info.java b/core/src/main/scala/org/apache/spark/annotation/package-info.java
deleted file mode 100644
index 9efdccf6b0..0000000000
--- a/core/src/main/scala/org/apache/spark/annotation/package-info.java
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Spark annotations to mark an API experimental or intended only for advanced usages by developers.
- * This package consist of these annotations, which are used project wide and are reflected in
- * Scala and Java docs.
- */
-package org.apache.spark.annotation;
diff --git a/core/src/main/scala/org/apache/spark/annotation/package.scala b/core/src/main/scala/org/apache/spark/annotation/package.scala
deleted file mode 100644
index c3f4026a29..0000000000
--- a/core/src/main/scala/org/apache/spark/annotation/package.scala
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.spark
-
-/**
- * Spark annotations to mark an API experimental or intended only for advanced usages by developers.
- * This package consist of these annotations, which are used project wide and are reflected in
- * Scala and Java docs.
- */
-package object annotation