Remove SecurityManager

src/main/java/org/codehaus/gmavenplus/mojo/AbstractToolsMojo.java

@@ -70,15 +70,6 @@ public abstract class AbstractToolsMojo extends AbstractGroovyMojo {
     @Parameter
     protected Properties properties = new Properties();
 
-    /**
-     * Whether to allow System.exit() to be used. Should not be set to <code>false</code> when using parallel
-     * execution, as it isn't thread-safe.
-     *
-     * @since 1.2
-     */
-    @Parameter(defaultValue = "true")
-    protected boolean allowSystemExits;
-
     /**
      * Whether to bind each property to a separate variable (otherwise binds properties to a single 'properties' variable).
      *

src/main/java/org/codehaus/gmavenplus/mojo/ConsoleMojo.java

@@ -22,7 +22,6 @@
 import org.apache.maven.plugins.annotations.Mojo;
 import org.apache.maven.plugins.annotations.Parameter;
 import org.apache.maven.plugins.annotations.ResolutionScope;
-import org.codehaus.gmavenplus.util.NoExitSecurityManager;
 
 import java.io.File;
 import java.lang.reflect.InvocationTargetException;
@@ -86,12 +85,7 @@ public void execute() throws MojoExecutionException, MojoFailureException {
         }
 
         if (groovyVersionSupportsAction()) {
-            final SecurityManager sm = System.getSecurityManager();
             try {
-                if (!allowSystemExits) {
-                    System.setSecurityManager(new NoExitSecurityManager());
-                }
-
                 // get classes we need with reflection
                 Class<?> consoleClass;
                 try {
@@ -127,10 +121,6 @@ public void execute() throws MojoExecutionException, MojoFailureException {
                 throw new MojoExecutionException("Unable to access a method on a Groovy class from classpath.", e);
             } catch (InstantiationException e) {
                 throw new MojoExecutionException("Error occurred while instantiating a Groovy class from classpath.", e);
-            } finally {
-                if (!allowSystemExits) {
-                    System.setSecurityManager(sm);
-                }
             }
         } else {
             getLog().error("Your Groovy version (" + classWrangler.getGroovyVersionString() + ") doesn't support running a console. The minimum version of Groovy required is " + minGroovyVersion + ". Skipping console startup.");

src/main/java/org/codehaus/gmavenplus/mojo/ExecuteMojo.java

@@ -23,7 +23,6 @@
 import org.apache.maven.plugins.annotations.ResolutionScope;
 import org.codehaus.gmavenplus.model.internal.Version;
 import org.codehaus.gmavenplus.util.FileUtils;
-import org.codehaus.gmavenplus.util.NoExitSecurityManager;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -137,12 +136,7 @@ protected synchronized void doExecute() throws MojoExecutionException {
         }
 
         if (groovyVersionSupportsAction()) {
-            final SecurityManager sm = System.getSecurityManager();
             try {
-                if (!allowSystemExits) {
-                    System.setSecurityManager(new NoExitSecurityManager());
-                }
-
                 // get classes we need with reflection
                 Class<?> groovyShellClass = classWrangler.getClass("groovy.lang.GroovyShell");
 
@@ -159,10 +153,6 @@ protected synchronized void doExecute() throws MojoExecutionException {
                 throw new MojoExecutionException("Error occurred while instantiating a Groovy class from classpath.", e);
             } catch (IllegalAccessException e) {
                 throw new MojoExecutionException("Unable to access a method on a Groovy class from classpath.", e);
-            } finally {
-                if (!allowSystemExits) {
-                    System.setSecurityManager(sm);
-                }
             }
         } else {
             getLog().error("Your Groovy version (" + classWrangler.getGroovyVersionString() + ") doesn't support script execution. The minimum version of Groovy required is " + minGroovyVersion + ". Skipping script execution.");

src/main/java/org/codehaus/gmavenplus/mojo/ShellMojo.java

@@ -22,7 +22,6 @@
 import org.apache.maven.plugins.annotations.Parameter;
 import org.apache.maven.plugins.annotations.ResolutionScope;
 import org.codehaus.gmavenplus.model.internal.Version;
-import org.codehaus.gmavenplus.util.NoExitSecurityManager;
 
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
@@ -91,12 +90,7 @@ public void execute() throws MojoExecutionException {
         }
 
         if (groovyVersionSupportsAction()) {
-            final SecurityManager sm = System.getSecurityManager();
             try {
-                if (!allowSystemExits) {
-                    System.setSecurityManager(new NoExitSecurityManager());
-                }
-
                 // get classes we need with reflection
                 Class<?> shellClass = classWrangler.getClass(groovyAtLeast(GROOVY_4_0_0_ALPHA1) ? "org.apache.groovy.groovysh.Groovysh" : "org.codehaus.groovy.tools.shell.Groovysh");
                 Class<?> bindingClass = classWrangler.getClass("groovy.lang.Binding");
@@ -121,10 +115,6 @@ public void execute() throws MojoExecutionException {
                 throw new MojoExecutionException("Unable to access a method on a Groovy class from classpath.", e);
             } catch (InstantiationException e) {
                 throw new MojoExecutionException("Error occurred while instantiating a Groovy class from classpath.", e);
-            } finally {
-                if (!allowSystemExits) {
-                    System.setSecurityManager(sm);
-                }
             }
         } else {
             getLog().error("Your Groovy version (" + classWrangler.getGroovyVersionString() + ") doesn't support running a shell. The minimum version of Groovy required is " + minGroovyVersion + ". Skipping shell startup.");