Add a task to generate a sigtest file for the current version.

build.gradle

@@ -233,16 +233,31 @@ configure(subprojects.findAll { it.provides }) {
             File.pathSeparator + sourceSets.main.output.classesDirs.asPath,
             '-FileName', f, '-Out', outputs.getFiles()[0], '-Package'
         args provides
-        // The exit value is not 0 in case of success, but 95...
-        ignoreExitValue true
+        ignoreExitValue true // The exit value is 95 in case of success...
         doLast {
-          if (!outputs.getFiles()[0].readLines().find {it =~ /STATUS:Passed/}) {
-            throw new GradleException('Sigtest FAILED')
-          }
+          if (!outputs.getFiles()[0].readLines().find {it =~ /STATUS:Passed/})
+            throw new GradleException()
         }
       }
       check.dependsOn f.name
     }
+    // Define a task to create a sigtest file for the current version.
+    task "buildSigtest" (type: JavaExec, dependsOn: 'classes') {
+      inputs.files(sourceSets.main.java)
+      outputs.file("src/test/resources/sigtest-${version}")
+      classpath configurations.sigtest
+      main 'com.sun.tdk.signaturetest.Main'
+      args 'Setup', '-ApiVersion', version, '-FileName', outputs.getFiles()[0],
+          '-Classpath', project(':tools').file('jdk8-api.jar').path +
+          File.pathSeparator + sourceSets.main.output.classesDirs.asPath +
+          File.pathSeparator + sourceSets.main.compileClasspath.asPath,
+          '-Package'
+      args provides
+      ignoreExitValue true // The exit value is 95 in case of success...
+      doLast {
+        if (!outputs.getFiles()[0].exists()) throw new GradleException()
+      }
+    }
   }
 
   // Apply the biz.aQute.bnd plugin to package the project as an OSGi bundle,