<projectDescription>
  <name>myProject</name>
  <comment/>
  <projects/>
  <natures/>
  <buildSpec>
    <buildCommand>
      <name>org.gradle.test.custom.custombuilder1</name>
      <arguments/>
    </buildCommand>
    <buildCommand>
      <name>org.gradle.test.custom.custombuilder2</name>
      <arguments/>
    </buildCommand>
  </buildSpec>

                CustomPlugin(ToolingModelBuilderRegistry registry) {
                    registry.register(new CustomBuilder());
                    registry.register(new CustomBuilder2());
                }

                public void apply(Project project) {
                }
            }

            class CustomBuilder2 implements ToolingModelBuilder {
                boolean canBuild(String modelName) {

            class CustomModel implements Serializable {
                CustomModel() {
                }
            }

            class CustomBuilder implements ToolingModelBuilder {
                private final Problems problemsService

                CustomBuilder(Problems problemsService) {
                    this.problemsService = problemsService
                }

                boolean canBuild(String modelName) {

import org.gradle.tooling.provider.model.ToolingModelBuilder
import javax.inject.Inject

class CustomModel implements Serializable {
    String value
}
class CustomBuilder implements ToolingModelBuilder {
    boolean canBuild(String modelName) {
        return modelName == 'org.gradle.integtests.tooling.r16.CustomModel'
    }
    Object buildAll(String modelName, Project project) {

allprojects {
    apply plugin: 'java'
    apply plugin: CustomPlugin
}

class CustomArtifactModel implements Serializable {
    List<File> files
    Exception failure
}

class CustomBuilder implements ToolingModelBuilder {
    boolean canBuild(String modelName) {
        return modelName == '${CustomArtifactModel.name}'
    }
    Object buildAll(String modelName, Project project) {
        try {

    Map<String, CustomThing> getThingsByName() { return [child: INSTANCE] }
    CustomThing findThing(String name) { return INSTANCE }
}

class CustomThing implements Serializable {
}

class CustomBuilder implements ToolingModelBuilder {
    boolean canBuild(String modelName) {
        return modelName == '${CustomModel.name}'
    }
    Object buildAll(String modelName, Project project) {
        return new CustomModel()

    Set<CustomThing> getThings() { return [new CustomThing()] }
    Map<String, CustomThing> getThingsByName() { return [thing: new CustomThing()] }
}
class CustomThing implements Serializable {
}
class CustomBuilder implements ToolingModelBuilder {
    boolean canBuild(String modelName) {
        return modelName == '${CustomModel.name}'
    }
    Object buildAll(String modelName, Project project) {
        return new CustomModel()

        for(int i = 0; i < heapSizeMb; i++) {
            things.add(new CustomThing())
        }
    }
}

class CustomThing implements Serializable {
    byte[] payload = new byte[1024 * 1024]
}

class CustomBuilder implements ToolingModelBuilder {
    boolean canBuild(String modelName) {
        return modelName == '${CustomModel.name}'
    }
    Object buildAll(String modelName, Project project) {
        return new CustomModel(50)

}

class CustomException extends Exception {
    Thread thread = Thread.currentThread() // non-serializable field
    CustomException(String msg) {
        super(msg)
    }
}

class CustomBuilder implements ToolingModelBuilder {
    boolean canBuild(String modelName) {
        return modelName == '${CustomModel.name}'
    }
    Object buildAll(String modelName, Project project) {

                }

                void apply(Project project) {
                    registry.register(new CustomBuilder())
                }
            }

            class CustomModel implements Serializable {
                String path
            }

            class CustomBuilder implements ToolingModelBuilder {
                boolean canBuild(String modelName) {