[singular][issue #2221] the plural builder method now nullchecks its argument with configurable results.

test/transform/resource/after-ecj/BuilderSingularNullBehavior1.java

@@ -0,0 +1,154 @@
+import java.util.List;
+import java.util.Collection;
+import lombok.Singular;
+import lombok.Singular.NullCollectionBehavior;
+@lombok.Builder class BuilderSingularNullBehavior1 {
+  public static @java.lang.SuppressWarnings("all") class BuilderSingularNullBehavior1Builder {
+    private @java.lang.SuppressWarnings("all") java.util.ArrayList<String> names;
+    private @java.lang.SuppressWarnings("all") java.util.ArrayList<String> locations;
+    private @java.lang.SuppressWarnings("all") java.util.ArrayList<String> whatevers;
+    private @java.lang.SuppressWarnings("all") java.util.ArrayList<String> doohickeys;
+    @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1Builder() {
+      super();
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder name(final String name) {
+      if ((this.names == null))
+          this.names = new java.util.ArrayList<String>();
+      this.names.add(name);
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder names(final java.util.Collection<? extends String> names) {
+      if ((names == null))
+          throw new java.lang.NullPointerException("names cannot be null");
+      if ((this.names == null))
+          this.names = new java.util.ArrayList<String>();
+      this.names.addAll(names);
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder clearNames() {
+      if ((this.names != null))
+          this.names.clear();
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder location(final String location) {
+      if ((this.locations == null))
+          this.locations = new java.util.ArrayList<String>();
+      this.locations.add(location);
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder locations(final java.util.Collection<? extends String> locations) {
+      java.util.Objects.requireNonNull(locations, "locations cannot be null");
+      if ((this.locations == null))
+          this.locations = new java.util.ArrayList<String>();
+      this.locations.addAll(locations);
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder clearLocations() {
+      if ((this.locations != null))
+          this.locations.clear();
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder whatever(final String whatever) {
+      if ((this.whatevers == null))
+          this.whatevers = new java.util.ArrayList<String>();
+      this.whatevers.add(whatever);
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder whatevers(final java.util.Collection<? extends String> whatevers) {
+      com.google.common.base.Preconditions.checkNotNull(whatevers, "whatevers cannot be null");
+      if ((this.whatevers == null))
+          this.whatevers = new java.util.ArrayList<String>();
+      this.whatevers.addAll(whatevers);
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder clearWhatevers() {
+      if ((this.whatevers != null))
+          this.whatevers.clear();
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder doohickey(final String doohickey) {
+      if ((this.doohickeys == null))
+          this.doohickeys = new java.util.ArrayList<String>();
+      this.doohickeys.add(doohickey);
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder doohickeys(final java.util.Collection<? extends String> doohickeys) {
+      if ((doohickeys != null))
+          {
+            if ((this.doohickeys == null))
+                this.doohickeys = new java.util.ArrayList<String>();
+            this.doohickeys.addAll(doohickeys);
+          }
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder clearDoohickeys() {
+      if ((this.doohickeys != null))
+          this.doohickeys.clear();
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1 build() {
+      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));
+      }
+      java.util.List<String> locations;
+      switch (((this.locations == null) ? 0 : this.locations.size())) {
+      case 0 :
+          locations = java.util.Collections.emptyList();
+          break;
+      case 1 :
+          locations = java.util.Collections.singletonList(this.locations.get(0));
+          break;
+      default :
+          locations = java.util.Collections.unmodifiableList(new java.util.ArrayList<String>(this.locations));
+      }
+      java.util.List<String> whatevers;
+      switch (((this.whatevers == null) ? 0 : this.whatevers.size())) {
+      case 0 :
+          whatevers = java.util.Collections.emptyList();
+          break;
+      case 1 :
+          whatevers = java.util.Collections.singletonList(this.whatevers.get(0));
+          break;
+      default :
+          whatevers = java.util.Collections.unmodifiableList(new java.util.ArrayList<String>(this.whatevers));
+      }
+      java.util.List<String> doohickeys;
+      switch (((this.doohickeys == null) ? 0 : this.doohickeys.size())) {
+      case 0 :
+          doohickeys = java.util.Collections.emptyList();
+          break;
+      case 1 :
+          doohickeys = java.util.Collections.singletonList(this.doohickeys.get(0));
+          break;
+      default :
+          doohickeys = java.util.Collections.unmodifiableList(new java.util.ArrayList<String>(this.doohickeys));
+      }
+      return new BuilderSingularNullBehavior1(names, locations, whatevers, doohickeys);
+    }
+    public @java.lang.Override @java.lang.SuppressWarnings("all") java.lang.String toString() {
+      return (((((((("BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder(names=" + this.names) + ", locations=") + this.locations) + ", whatevers=") + this.whatevers) + ", doohickeys=") + this.doohickeys) + ")");
+    }
+  }
+  private @Singular List<String> names;
+  private @Singular(nullBehavior = Singular.NullCollectionBehavior.JDK) List<String> locations;
+  private @Singular(nullBehavior = NullCollectionBehavior.GUAVA) List<String> whatevers;
+  private @Singular(nullBehavior = lombok.Singular.NullCollectionBehavior.IGNORE) List<String> doohickeys;
+  @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1(final List<String> names, final List<String> locations, final List<String> whatevers, final List<String> doohickeys) {
+    super();
+    this.names = names;
+    this.locations = locations;
+    this.whatevers = whatevers;
+    this.doohickeys = doohickeys;
+  }
+  public static @java.lang.SuppressWarnings("all") BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder builder() {
+    return new BuilderSingularNullBehavior1.BuilderSingularNullBehavior1Builder();
+  }
+}