test/langtools/tools/javac/lambda/speculative/InferWeak.java

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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 /*
  * @test
  * @bug 8078093
  * @summary Exponential performance regression Java 8 compiler compared to Java 7 compiler
  * @compile InferWeak.java
  */
class InferWeak {
    private void test() {
        GroupLayout l = new GroupLayout();
        l.setHorizontalGroup(
            l.createParallelGroup().addGroup(l.createParallelGroup().addGroup(
            l.createParallelGroup().addGroup(l.createParallelGroup().addGroup(
            l.createParallelGroup().addGroup(l.createParallelGroup().addGroup(
            l.createParallelGroup().addGroup(l.createParallelGroup().addGroup(
            l.createParallelGroup().addGroup(l.createParallelGroup().addGroup(
            l.createParallelGroup().addGroup(l.createParallelGroup().addGroup(
            l.createParallelGroup().addGroup(l.createParallelGroup().addGroup(
            l.createParallelGroup().addGroup(l.createParallelGroup().addGroup(
            l.createParallelGroup().addGroup(l.createParallelGroup().addGroup(
            l.createParallelGroup().addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object())).addGap(1).addComponent(new Object()).addGap(1)
            .addComponent(new Object()));
    }

    static class GroupLayout {
        <T extends ParallelGroup> T createParallelGroup() {return null;}
        <T extends ParallelGroup> T createParallelGroup(int i) {return null;}
        <T extends ParallelGroup> T createParallelGroup(int i, int j) {return null;}
        void setHorizontalGroup(ParallelGroup g) { }
    }

    static class ParallelGroup {
        <T extends ParallelGroup> T addGroup(ParallelGroup g) { return null; }
        <T extends ParallelGroup> T addGroup(int i, ParallelGroup g) { return null; }
        <T extends ParallelGroup> T addGap(int i) { return null; }
        <T extends ParallelGroup> T addGap(int i, int j) { return null; }
        <T extends ParallelGroup> T addComponent(Object c) { return null; }
        <T extends ParallelGroup> T addComponent(int i, Object c) { return null; }
    }
 }