Revert "Update Maven wrapper (#732)"

This reverts commit 2510349.

Author: cowtowncoder

.gitattributes

@@ -1,6 +1,3 @@
 # Do not merge `pom.xml` from older version, as it will typically conflict
 
 pom.xml merge=ours
-.travis.yml merge=ours
-
-release/VERSION merge=ours

.github/workflows/main.yml

@@ -4,7 +4,6 @@ on:
     branches:
     - master
     - "3.0"
-    - "2.14"
     - "2.13"
     paths-ignore:
     - "README.md"
@@ -13,7 +12,6 @@ on:
     branches:
     - master
     - "3.0"
-    - "2.14"
     - "2.13"
     paths-ignore:
     - "README.md"
@@ -24,7 +22,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java_version: ['8', '11', '14']
+        # Alas, as long as JDK6 is target, cannot run against 14+
+        java_version: ['8', '11']
         os: ['ubuntu-20.04']
     env:
       JAVA_OPTS: "-XX:+TieredCompilation -XX:TieredStopAtLevel=1"

.gitignore

@@ -10,7 +10,6 @@ syntax: glob
 
 # building
 /target
-.mvn/wrapper/maven-wrapper.jar
 
 # Eclipse
 .classpath

.mvn/wrapper/maven-wrapper.jar

@@ -1,18 +1,2 @@
-# 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.
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
-wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

.mvn/wrapper/maven-wrapper.properties

@@ -28,7 +28,7 @@ Project contains versions 2.0 and above: source code for earlier (1.x) versions
 | Artifact | [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.fasterxml.jackson.core/jackson-core/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.fasterxml.jackson.core/jackson-core) |
 | OSS Sponsorship | [![Tidelift](https://tidelift.com/badges/package/maven/com.fasterxml.jackson.core:jackson-core)](https://tidelift.com/subscription/pkg/maven-com-fasterxml-jackson-core-jackson-core?utm_source=maven-com-fasterxml-jackson-core-jackson-core&utm_medium=referral&utm_campaign=readme) |
 | Javadocs | [![Javadoc](https://javadoc.io/badge/com.fasterxml.jackson.core/jackson-core.svg)](https://javadoc.io/doc/com.fasterxml.jackson.core/jackson-core) |
-| Code coverage (3.0) | [![codecov.io](https://codecov.io/github/FasterXML/jackson-core/coverage.svg?branch=master)](https://codecov.io/github/FasterXML/jackson-core?branch=master) |
+| Code coverage (2.13) | [![codecov.io](https://codecov.io/github/FasterXML/jackson-core/coverage.svg?branch=2.13)](https://codecov.io/github/FasterXML/jackson-core?branch=2.13) |
 | CodeQ (LGTM.com) | [![LGTM alerts](https://img.shields.io/lgtm/alerts/g/FasterXML/jackson-core.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/FasterXML/jackson-core/alerts/) [![Language grade: Java](https://img.shields.io/lgtm/grade/java/g/FasterXML/jackson-core.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/FasterXML/jackson-core/context:java) |
 | CodeQ (ClusterFuzz) | [![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/jackson-core.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:jackson-core) |