8281585: Remove unused imports under test/lib and jtreg/gc

Reviewed-by: dholmes, sspitsyn

Author: lkorinth

test/hotspot/jtreg/gc/TestAllocateHeapAt.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -31,11 +31,8 @@
  * @run driver gc.TestAllocateHeapAt
  */
 
-import jdk.test.lib.JDKToolFinder;
 import jdk.test.lib.process.ProcessTools;
 import jdk.test.lib.process.OutputAnalyzer;
-import java.util.ArrayList;
-import java.util.Collections;
 
 public class TestAllocateHeapAt {
   public static void main(String args[]) throws Exception {

test/hotspot/jtreg/gc/TestAllocateHeapAtMultiple.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -31,7 +31,6 @@
  * @run driver/timeout=360 gc.TestAllocateHeapAtMultiple
  */
 
-import jdk.test.lib.JDKToolFinder;
 import jdk.test.lib.process.ProcessTools;
 import jdk.test.lib.process.OutputAnalyzer;
 import java.util.ArrayList;

test/hotspot/jtreg/gc/TestCardTablePageCommits.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -25,7 +25,6 @@
 
 import jdk.test.lib.process.ProcessTools;
 import jdk.test.lib.process.OutputAnalyzer;
-import jdk.test.lib.Platform;
 
 /*
  * @test TestCardTablePageCommits

test/hotspot/jtreg/gc/TestSmallHeap.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -61,8 +61,6 @@
 import jdk.test.lib.process.OutputAnalyzer;
 import jdk.test.lib.process.ProcessTools;
 
-import java.util.LinkedList;
-
 import jtreg.SkippedException;
 import sun.hotspot.WhiteBox;
 import sun.hotspot.gc.GC;

test/hotspot/jtreg/gc/arguments/TestAggressiveHeap.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -39,7 +39,6 @@
 import javax.management.ObjectName;
 
 import jdk.test.lib.process.OutputAnalyzer;
-import jdk.test.lib.process.ProcessTools;
 import jtreg.SkippedException;
 
 public class TestAggressiveHeap {

test/hotspot/jtreg/gc/arguments/TestArrayAllocatorMallocLimit.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -37,7 +37,6 @@
 
 import jdk.test.lib.Asserts;
 import jdk.test.lib.process.OutputAnalyzer;
-import jdk.test.lib.process.ProcessTools;
 import java.math.BigInteger;
 
 public class TestArrayAllocatorMallocLimit {

test/hotspot/jtreg/gc/arguments/TestCompressedClassFlags.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -24,7 +24,6 @@
 package gc.arguments;
 
 import jdk.test.lib.process.OutputAnalyzer;
-import jdk.test.lib.process.ProcessTools;
 import jdk.test.lib.Platform;
 
 /*

test/hotspot/jtreg/gc/arguments/TestG1ConcMarkStepDurationMillis.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -34,7 +34,6 @@
  * @run driver gc.arguments.TestG1ConcMarkStepDurationMillis
  */
 
-import jdk.test.lib.process.ProcessTools;
 import jdk.test.lib.process.OutputAnalyzer;
 import java.util.*;
 import java.util.regex.*;

test/hotspot/jtreg/gc/arguments/TestG1ConcRefinementThreads.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -36,7 +36,6 @@
  */
 
 import jdk.test.lib.process.OutputAnalyzer;
-import jdk.test.lib.process.ProcessTools;
 import java.util.*;
 import java.util.regex.*;
 

test/hotspot/jtreg/gc/arguments/TestG1HeapRegionSize.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -43,7 +43,6 @@
 
 import jdk.test.lib.process.OutputAnalyzer;
 import jdk.test.lib.Platform;
-import jdk.test.lib.process.ProcessTools;
 
 public class TestG1HeapRegionSize {