Merge branch 'stable-4.6' into stable-4.7

* stable-4.6:
  Replace Findbugs with Spotbugs in org.eclipse.jgit/pom.xml
  Replace FindBugs with SpotBugs

Change-Id: I24417e4ebbba31f7ff6896d585ef807327411392
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit/pom.xml

@@ -206,8 +206,8 @@
     <pluginManagement>
       <plugins>
         <plugin>
-          <groupId>org.codehaus.mojo</groupId>
-          <artifactId>findbugs-maven-plugin</artifactId>
+          <groupId>com.github.spotbugs</groupId>
+          <artifactId>spotbugs-maven-plugin</artifactId>
           <configuration>
             <excludeFilterFile>findBugs/FindBugsExcludeFilter.xml</excludeFilterFile>
           </configuration>

pom.xml

@@ -208,7 +208,7 @@
     <maven-javadoc-plugin-version>2.10.4</maven-javadoc-plugin-version>
     <tycho-extras-version>0.26.0</tycho-extras-version>
     <gson-version>2.2.4</gson-version>
-    <findbugs-maven-plugin-version>3.0.4</findbugs-maven-plugin-version>
+    <spotbugs-maven-plugin-version>3.1.6</spotbugs-maven-plugin-version>
 
     <!-- Properties to enable jacoco code coverage analysis -->
     <sonar.core.codeCoveragePlugin>jacoco</sonar.core.codeCoveragePlugin>
@@ -366,9 +366,9 @@
         </plugin>
 
         <plugin>
-          <groupId>org.codehaus.mojo</groupId>
-          <artifactId>findbugs-maven-plugin</artifactId>
-          <version>${findbugs-maven-plugin-version}</version>
+          <groupId>com.github.spotbugs</groupId>
+          <artifactId>spotbugs-maven-plugin</artifactId>
+          <version>${spotbugs-maven-plugin-version}</version>
           <configuration>
             <findbugsXmlOutput>true</findbugsXmlOutput>
             <failOnError>false</failOnError>
@@ -571,9 +571,9 @@
         <version>2.5</version>
       </plugin>
       <plugin>
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>findbugs-maven-plugin</artifactId>
-        <version>${findbugs-maven-plugin-version}</version>
+        <groupId>com.github.spotbugs</groupId>
+        <artifactId>spotbugs-maven-plugin</artifactId>
+        <version>${spotbugs-maven-plugin-version}</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
@@ -743,8 +743,8 @@
       <build>
         <plugins>
           <plugin>
-            <groupId>org.codehaus.mojo</groupId>
-            <artifactId>findbugs-maven-plugin</artifactId>
+            <groupId>com.github.spotbugs</groupId>
+            <artifactId>spotbugs-maven-plugin</artifactId>
           </plugin>
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>