diff --git a/.idea/libraries/bld.xml b/.idea/libraries/bld.xml
index a35eaf8..f07cc1c 100644
--- a/.idea/libraries/bld.xml
+++ b/.idea/libraries/bld.xml
@@ -2,11 +2,11 @@
   <library name="bld">
     <CLASSES>
       <root url="file://$PROJECT_DIR$/lib/bld" />
-      <root url="jar://$USER_HOME$/.rife2/dist/rife2-1.6.2.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-1.7.0.jar!/" />
     </CLASSES>
     <JAVADOC />
     <SOURCES>
-      <root url="jar://$USER_HOME$/.rife2/dist/rife2-1.6.2-sources.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-1.7.0-sources.jar!/" />
     </SOURCES>
     <excluded>
       <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 9f84d85..5dd7145 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -7,7 +7,7 @@
     ],
     "java.configuration.updateBuildConfiguration": "automatic",
     "java.project.referencedLibraries": [
-        "${HOME}/.rife2/dist/rife2-1.6.2.jar",
+        "${HOME}bld-1.7.0-SNAPSHOT.jar",
         "lib/compile/*.jar",
         "lib/runtime/*.jar",
         "lib/test/*.jar"
diff --git a/examples/.idea/libraries/bld.xml b/examples/.idea/libraries/bld.xml
index 7596927..f07cc1c 100644
--- a/examples/.idea/libraries/bld.xml
+++ b/examples/.idea/libraries/bld.xml
@@ -2,11 +2,11 @@
   <library name="bld">
     <CLASSES>
       <root url="file://$PROJECT_DIR$/lib/bld" />
-      <root url="jar://$USER_HOME$/.rife2/dist/rife2-1.6.1.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-1.7.0.jar!/" />
     </CLASSES>
     <JAVADOC />
     <SOURCES>
-      <root url="jar://$USER_HOME$/.rife2/dist/rife2-1.6.1-sources.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-1.7.0-sources.jar!/" />
     </SOURCES>
     <excluded>
       <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />
diff --git a/examples/.vscode/settings.json b/examples/.vscode/settings.json
index 4fdc74b..5dd7145 100644
--- a/examples/.vscode/settings.json
+++ b/examples/.vscode/settings.json
@@ -7,7 +7,7 @@
     ],
     "java.configuration.updateBuildConfiguration": "automatic",
     "java.project.referencedLibraries": [
-        "${HOME}/.rife2/dist/rife2-1.6.1.jar",
+        "${HOME}bld-1.7.0-SNAPSHOT.jar",
         "lib/compile/*.jar",
         "lib/runtime/*.jar",
         "lib/test/*.jar"
diff --git a/examples/lib/bld/bld-wrapper.jar b/examples/lib/bld/bld-wrapper.jar
index 0f4a21a..0c69eaa 100644
Binary files a/examples/lib/bld/bld-wrapper.jar and b/examples/lib/bld/bld-wrapper.jar differ
diff --git a/examples/lib/bld/bld-wrapper.properties b/examples/lib/bld/bld-wrapper.properties
index 6b13985..707f243 100644
--- a/examples/lib/bld/bld-wrapper.properties
+++ b/examples/lib/bld/bld-wrapper.properties
@@ -2,5 +2,5 @@ bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
 bld.extension-pmd=com.uwyn.rife2:bld-jacoco-report:0.9.0-SNAPSHOT
 bld.repositories=MAVEN_LOCAL,MAVEN_CENTRAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
-rife2.downloadLocation=
-rife2.version=1.6.1
\ No newline at end of file
+bld.downloadLocation=
+bld.version=1.7.0
\ No newline at end of file
diff --git a/examples/src/bld/java/com/example/ExamplesBuild.java b/examples/src/bld/java/com/example/ExamplesBuild.java
index 8c6e5e3..ea0864a 100644
--- a/examples/src/bld/java/com/example/ExamplesBuild.java
+++ b/examples/src/bld/java/com/example/ExamplesBuild.java
@@ -19,8 +19,8 @@ public class ExamplesBuild extends Project {
         repositories = List.of(MAVEN_CENTRAL);
 
         scope(test)
-                .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 9, 2)))
-                .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 9, 2)));
+                .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 9, 3)))
+                .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 9, 3)));
     }
 
     public static void main(String[] args) {
diff --git a/lib/bld/bld-wrapper.jar b/lib/bld/bld-wrapper.jar
index 27c4538..afa7b0c 100644
Binary files a/lib/bld/bld-wrapper.jar and b/lib/bld/bld-wrapper.jar differ
diff --git a/lib/bld/bld-wrapper.properties b/lib/bld/bld-wrapper.properties
index 605fa65..a435808 100644
--- a/lib/bld/bld-wrapper.properties
+++ b/lib/bld/bld-wrapper.properties
@@ -2,5 +2,5 @@ bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
 bld.extension-pmd=com.uwyn.rife2:bld-pmd:0.9.1-SNAPSHOT
 bld.repositories=MAVEN_LOCAL,MAVEN_CENTRAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
-rife2.downloadLocation=
-rife2.version=1.6.2
\ No newline at end of file
+bld.downloadLocation=
+bld.version=1.7.0
\ No newline at end of file
diff --git a/src/bld/java/rife/bld/extension/JacocoReportOperationBuild.java b/src/bld/java/rife/bld/extension/JacocoReportOperationBuild.java
index 2195e8b..dc9acae 100644
--- a/src/bld/java/rife/bld/extension/JacocoReportOperationBuild.java
+++ b/src/bld/java/rife/bld/extension/JacocoReportOperationBuild.java
@@ -23,7 +23,9 @@ import rife.bld.publish.PublishDeveloper;
 import rife.bld.publish.PublishLicense;
 import rife.bld.publish.PublishScm;
 
+import java.io.File;
 import java.util.List;
+import java.util.stream.Collectors;
 
 import static rife.bld.dependencies.Repository.*;
 import static rife.bld.dependencies.Scope.*;
@@ -41,9 +43,11 @@ public class JacocoReportOperationBuild extends Project {
         repositories = List.of(MAVEN_CENTRAL, RIFE2_RELEASES);
 
         var jacocoVersion = new VersionNumber(0, 8, 10);
+        var rife2 = version(1,7,0);
         scope(compile)
                 .include(dependency("org.jacoco", "jacoco", jacocoVersion).exclude("*", "org.jacoco.doc"))
-                .include(dependency("com.uwyn.rife2", "rife2", version(1, 6, 2)));
+                .include(dependency("com.uwyn.rife2", "rife2", rife2))
+                .include(dependency("com.uwyn.rife2", "bld", rife2));
         scope(runtime)
                 .include(dependency("org.jacoco", "jacoco", jacocoVersion).exclude("*", "org.jacoco.doc"));
         scope(test)
@@ -59,8 +63,8 @@ public class JacocoReportOperationBuild extends Project {
                 .link("https://rife2.github.io/rife2/");
 
         publishOperation()
-                .repository(MAVEN_LOCAL)
 //                .repository(version.isSnapshot() ? repository("rife2-snapshot") : repository("rife2"))
+                .repository(MAVEN_LOCAL)
                 .info()
                 .groupId("com.uwyn.rife2")
                 .artifactId("bld-jacoco-report")
diff --git a/src/main/java/rife/bld/extension/JacocoReportOperation.java b/src/main/java/rife/bld/extension/JacocoReportOperation.java
index 777e2a1..a191e9f 100644
--- a/src/main/java/rife/bld/extension/JacocoReportOperation.java
+++ b/src/main/java/rife/bld/extension/JacocoReportOperation.java
@@ -20,6 +20,8 @@ import org.jacoco.core.analysis.Analyzer;
 import org.jacoco.core.analysis.CoverageBuilder;
 import org.jacoco.core.analysis.IBundleCoverage;
 import org.jacoco.core.data.ExecutionDataStore;
+import org.jacoco.core.instr.Instrumenter;
+import org.jacoco.core.runtime.OfflineInstrumentationAccessGenerator;
 import org.jacoco.core.tools.ExecFileLoader;
 import org.jacoco.report.*;
 import org.jacoco.report.csv.CSVFormatter;
@@ -30,6 +32,8 @@ import rife.bld.operations.JUnitOperation;
 
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
@@ -37,7 +41,6 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.logging.Level;
 import java.util.logging.Logger;
-import java.util.stream.Collectors;
 
 
 /**
@@ -50,10 +53,12 @@ public class JacocoReportOperation extends JUnitOperation {
     private static final Logger LOGGER = Logger.getLogger(JacocoReportOperation.class.getName());
     private final List<File> classFiles = new ArrayList<>();
     private final List<File> execFiles = new ArrayList<>();
+    private final List<File> instrumentedFiles = new ArrayList<>();
     private final List<File> sourceFiles = new ArrayList<>();
     private File csv;
     private String encoding;
     private File html;
+    private Instrumenter instrumenter;
     private String name = "JaCoCo Coverage Report";
     private BaseProject project;
     private boolean quiet;
@@ -70,6 +75,22 @@ public class JacocoReportOperation extends JUnitOperation {
         return builder.getBundle(name);
     }
 
+    @SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
+    private void buildInstrumentedFiles(File dest) throws IOException {
+        var total = 0;
+        for (var f : classFiles) {
+            if (f.isFile()) {
+                total += instrument(f, new File(dest, f.getName()));
+            } else {
+                total += instrumentRecursive(f, dest);
+            }
+        }
+        if (LOGGER.isLoggable(Level.INFO) && !quiet) {
+            LOGGER.log(Level.INFO, "{0} classes instrumented to {1}.",
+                    new Object[]{total, dest.getAbsolutePath()});
+        }
+    }
+
     /**
      * Sets the locations of Java class files.
      **/
@@ -115,18 +136,10 @@ public class JacocoReportOperation extends JUnitOperation {
         } else {
             var buildJacocoReportsDir = Path.of(project.buildDirectory().getPath(), "reports", "jacoco", "test").toFile();
             var buildJacocoExecDir = Path.of(project.buildDirectory().getPath(), "jacoco").toFile();
-            var buildJacocoTestExec = new File(buildJacocoExecDir, "test.exec");
+            var buildJacocoClassesDir = Path.of(buildJacocoExecDir.getPath(), "classes").toFile();
 
-            if (execFiles.isEmpty()) {
-                execFiles.add(buildJacocoTestExec);
-
-                //noinspection ResultOfMethodCallIgnored
-                buildJacocoExecDir.mkdirs();
-
-                javaOptions().javaAgent(new File(project.libBldDirectory(), "jacocoagent.jar"),
-                        "destfile=" + buildJacocoTestExec +
-                                ",includes=" + classFiles.stream().map(File::toString).collect(Collectors.joining(",")));
-            }
+            instrumenter = new Instrumenter(new OfflineInstrumentationAccessGenerator());
+            instrumenter.setRemoveSignatures(true);
 
             if (sourceFiles.isEmpty()) {
                 sourceFiles.add(project.srcDirectory());
@@ -150,6 +163,17 @@ public class JacocoReportOperation extends JUnitOperation {
                 csv = new File(buildJacocoReportsDir, "jacocoTestReport.csv");
             }
 
+            if (execFiles.isEmpty()) {
+                //noinspection ResultOfMethodCallIgnored
+                buildJacocoClassesDir.mkdirs();
+
+                buildInstrumentedFiles(buildJacocoClassesDir);
+                var files = buildJacocoClassesDir.listFiles();
+                if (files != null) {
+                    instrumentedFiles.addAll(Arrays.asList(files));
+                }
+            }
+
             //noinspection ResultOfMethodCallIgnored
             buildJacocoReportsDir.mkdirs();
 
@@ -162,6 +186,7 @@ public class JacocoReportOperation extends JUnitOperation {
     /**
      * Configure the operation from a {@link BaseProject}.
      */
+    @Override
     public JacocoReportOperation fromProject(BaseProject project) {
         this.project = project;
         return this;
@@ -175,6 +200,39 @@ public class JacocoReportOperation extends JUnitOperation {
         return this;
     }
 
+    private int instrument(final File src, final File dest) throws IOException {
+        //noinspection ResultOfMethodCallIgnored
+        dest.getParentFile().mkdirs();
+        try (InputStream input = Files.newInputStream(src.toPath())) {
+            try (OutputStream output = Files.newOutputStream(dest.toPath())) {
+                return instrumenter.instrumentAll(input, output,
+                        src.getAbsolutePath());
+            }
+        } catch (final IOException e) {
+            //noinspection ResultOfMethodCallIgnored
+            dest.delete();
+            throw e;
+        }
+    }
+
+    @SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
+    private int instrumentRecursive(final File src, final File dest)
+            throws IOException {
+        var total = 0;
+        if (src.isDirectory()) {
+            var listFiles = src.listFiles();
+            if (listFiles != null) {
+                for (var child : listFiles) {
+                    total += instrumentRecursive(child,
+                            new File(dest, child.getName()));
+                }
+            }
+        } else {
+            total += instrument(src, dest);
+        }
+        return total;
+    }
+
     private ExecFileLoader loadExecFiles() throws IOException {
         var loader = new ExecFileLoader();
         if (execFiles.isEmpty() && LOGGER.isLoggable(Level.WARNING) && !quiet) {