Various updates

3 files changed, 40 insertions, 30 deletions

diff --git a/pom.xml b/pom.xml
index 8241a56..ca01763 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,6 +13,8 @@
 
     <properties>
         <build.number>unknown</build.number>
+        <maven.compiler.source>1.6</maven.compiler.source>
+        <maven.compiler.target>1.6</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -21,11 +23,12 @@
             <groupId>com.custardsource.dybdob</groupId>
             <artifactId>java-diff-utils-copy</artifactId>
             <version>1.0.1</version>
+            <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>19.0</version>
+            <version>20.0</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
@@ -37,35 +40,32 @@
         <dependency>
             <groupId>org.eclipse.jgit</groupId>
             <artifactId>org.eclipse.jgit</artifactId>
-            <version>4.4.1.201607150455-r</version>
+            <version>4.5.2.201704071617-r</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-jdk14</artifactId>
-            <version>1.7.21</version>
+            <version>1.7.25</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>1.16.12</version>
+            <version>1.16.16</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
             <version>2.5</version>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-compress</artifactId>
-            <version>1.12</version>
+            <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.7</version>
+            <version>2.8.1</version>
+            <scope>compile</scope>
         </dependency>
     </dependencies>
 
@@ -90,21 +90,12 @@
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.1</version>
-                <configuration>
-                    <source>1.6</source>
-                    <target>1.6</target>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
-                <version>2.5</version>
+                <version>3.0.2</version>
                 <configuration>
                     <archive>
                         <manifestEntries>
-                            <Main-Class>org.spigotmc.builder.Builder</Main-Class>
+                            <Main-Class>org.spigotmc.builder.Bootstrap</Main-Class>
                             <Implementation-Version>${describe}</Implementation-Version>
                         </manifestEntries>
                     </archive>
@@ -113,7 +104,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
-                <version>2.3</version>
+                <version>3.0.0</version>
                 <executions>
                     <execution>
                         <phase>package</phase>
diff --git a/src/main/java/org/spigotmc/builder/Bootstrap.java b/src/main/java/org/spigotmc/builder/Bootstrap.java
new file mode 100644
index 0000000..aba3d81
--- /dev/null
+++ b/src/main/java/org/spigotmc/builder/Bootstrap.java
@@ -0,0 +1,25 @@
+package org.spigotmc.builder;
+
+public class Bootstrap
+{
+
+    public static void main(String[] args) throws Exception
+    {
+        float javaVersion = Float.parseFloat( System.getProperty( "java.class.version" ) );
+
+        if ( javaVersion < 51.0 )
+        {
+            System.err.println( "Outdated Java detected (" + javaVersion + "). BuildTools requires at least Java 7. Please update Java and try again." );
+            System.err.println( "You may use java -version to double check your Java version." );
+            return;
+        }
+
+        if ( javaVersion != 52.0 )
+        {
+            System.err.println( "*** WARNING *** You are not using Java 8. Java 8 is the only supported version for Minecraft versions >= 1.12." );
+            System.err.println( "*** WARNING *** Please use java -version to check your version and note that early access versions of Java are not supported either." );
+        }
+
+        Builder.main( args );
+    }
+}
diff --git a/src/main/java/org/spigotmc/builder/Builder.java b/src/main/java/org/spigotmc/builder/Builder.java
index 7cab141..774ddad 100644
--- a/src/main/java/org/spigotmc/builder/Builder.java
+++ b/src/main/java/org/spigotmc/builder/Builder.java
@@ -138,12 +138,6 @@ public class Builder
 
         logOutput();
 
-        if ( Float.parseFloat( System.getProperty( "java.class.version" ) ) != 52.0 )
-        {
-            System.err.println( "*** WARNING *** You are not using Java 8. Java 8 is the only supported version for Minecraft versions >= 1.12." );
-            System.err.println( "*** WARNING *** Please use java -version to check your version and note that early access versions of Java are not supported either." );
-        }
-
         try
         {
             runProcess( CWD, "sh", "-c", "exit" );
@@ -201,7 +195,7 @@ public class Builder
         String m2Home = System.getenv( "M2_HOME" );
         if ( m2Home == null || !( maven = new File( m2Home ) ).exists() )
         {
-            maven = new File( "apache-maven-3.2.5" );
+            maven = new File( "apache-maven-3.5.0" );
 
             if ( !maven.exists() )
             {
@@ -210,7 +204,7 @@ public class Builder
                 File mvnTemp = new File( "mvn.zip" );
                 mvnTemp.deleteOnExit();
 
-                download( "https://static.spigotmc.org/maven/apache-maven-3.2.5-bin.zip", mvnTemp );
+                download( "https://static.spigotmc.org/maven/apache-maven-3.5.0-bin.zip", mvnTemp );
                 unzip( mvnTemp, new File( "." ) );
             }
         }