[checkerframework]

A bit of a shadow feature because the checker framework folks need to do some work on their side.
this update makes lombok generate a few checker framework annotations (if configured to do so)
which let the checker framework add warnings and errors for example if you misuse builders, or ignore
the return values of withers, etc.

test/transform/resource/after-ecj/CheckerFrameworkBuilder.java

@@ -0,0 +1,79 @@
+import java.util.List;
+import lombok.Builder;
+import lombok.Singular;
+@Builder class CheckerFrameworkBuilder {
+  public static @java.lang.SuppressWarnings("all") class CheckerFrameworkBuilderBuilder {
+    private @java.lang.SuppressWarnings("all") int x$value;
+    private @java.lang.SuppressWarnings("all") boolean x$set;
+    private @java.lang.SuppressWarnings("all") int y;
+    private @java.lang.SuppressWarnings("all") int z;
+    private @java.lang.SuppressWarnings("all") java.util.ArrayList<String> names;
+    @org.checkerframework.common.aliasing.qual.Unique @java.lang.SuppressWarnings("all") CheckerFrameworkBuilderBuilder() {
+      super();
+    }
+    public @org.checkerframework.checker.builder.qual.ReturnsReceiver @java.lang.SuppressWarnings("all") CheckerFrameworkBuilderBuilder x(final @org.checkerframework.checker.builder.qual.NotCalledMethods("x") CheckerFrameworkBuilderBuilder this, final int x) {
+      this.x$value = x;
+      x$set = true;
+      return this;
+    }
+    public @org.checkerframework.checker.builder.qual.ReturnsReceiver @java.lang.SuppressWarnings("all") CheckerFrameworkBuilderBuilder y(final @org.checkerframework.checker.builder.qual.NotCalledMethods("y") CheckerFrameworkBuilderBuilder this, final int y) {
+      this.y = y;
+      return this;
+    }
+    public @org.checkerframework.checker.builder.qual.ReturnsReceiver @java.lang.SuppressWarnings("all") CheckerFrameworkBuilderBuilder z(final @org.checkerframework.checker.builder.qual.NotCalledMethods("z") CheckerFrameworkBuilderBuilder this, final int z) {
+      this.z = z;
+      return this;
+    }
+    public @org.checkerframework.checker.builder.qual.ReturnsReceiver @java.lang.SuppressWarnings("all") CheckerFrameworkBuilderBuilder name(final String name) {
+      if ((this.names == null))
+          this.names = new java.util.ArrayList<String>();
+      this.names.add(name);
+      return this;
+    }
+    public @org.checkerframework.checker.builder.qual.ReturnsReceiver @java.lang.SuppressWarnings("all") CheckerFrameworkBuilderBuilder names(final java.util.Collection<? extends String> names) {
+      if ((this.names == null))
+          this.names = new java.util.ArrayList<String>();
+      this.names.addAll(names);
+      return this;
+    }
+    public @org.checkerframework.checker.builder.qual.ReturnsReceiver @java.lang.SuppressWarnings("all") CheckerFrameworkBuilderBuilder clearNames() {
+      if ((this.names != null))
+          this.names.clear();
+      return this;
+    }
+    public @org.checkerframework.dataflow.qual.SideEffectFree @java.lang.SuppressWarnings("all") CheckerFrameworkBuilder build(final @org.checkerframework.checker.builder.qual.CalledMethods({"y", "z"}) CheckerFrameworkBuilderBuilder this) {
+      java.util.List<String> names;
+      switch (((this.names == null) ? 0 : this.names.size())) {
+      case 0 :
+          names = java.util.Collections.emptyList();
+          break;
+      case 1 :
+          names = java.util.Collections.singletonList(this.names.get(0));
+          break;
+      default :
+          names = java.util.Collections.unmodifiableList(new java.util.ArrayList<String>(this.names));
+      }
+      return new CheckerFrameworkBuilder((x$set ? x$value : CheckerFrameworkBuilder.$default$x()), y, z, names);
+    }
+    public @java.lang.Override @org.checkerframework.dataflow.qual.SideEffectFree @java.lang.SuppressWarnings("all") java.lang.String toString() {
+      return (((((((("CheckerFrameworkBuilder.CheckerFrameworkBuilderBuilder(x$value=" + this.x$value) + ", y=") + this.y) + ", z=") + this.z) + ", names=") + this.names) + ")");
+    }
+  }
+  @Builder.Default int x;
+  int y;
+  int z;
+  @Singular List<String> names;
+  private static @java.lang.SuppressWarnings("all") int $default$x() {
+    return 5;
+  }
+  @org.checkerframework.common.aliasing.qual.Unique @java.lang.SuppressWarnings("all") CheckerFrameworkBuilder(final int x, final int y, final int z, final List<String> names) {
+    super();
+    this.x = x;
+    this.y = y;
+    this.z = z;
+    this.names = names;
+  }
+  public static @org.checkerframework.common.aliasing.qual.Unique @org.checkerframework.dataflow.qual.SideEffectFree @java.lang.SuppressWarnings("all") CheckerFrameworkBuilderBuilder builder() {
+    return new CheckerFrameworkBuilderBuilder();
+  }
+}