just removed useless throw Exception etc. to make IDE happy

h2/src/test/org/h2/test/store/TestConcurrent.java

@@ -41,7 +41,13 @@ public class TestConcurrent extends TestMVStore {
      * @param a ignored
      */
     public static void main(String... a) throws Exception {
-        TestBase.createCaller().init().test();
+        TestBase init = TestBase.createCaller().init();
+        init.config.memory = true;
+        init.config.multiThreaded = true;
+        for (int i = 0; i < 1000; i++) {
+            System.out.println("Pass #" + i);
+            init.test();
+        }
     }
 
     @Override
@@ -64,7 +70,7 @@ public class TestConcurrent extends TestMVStore {
         testConcurrentRead();
     }
 
-    private void testInterruptReopen() throws Exception {
+    private void testInterruptReopen() {
         String fileName = "retry:nio:" + getBaseDir() + "/" + getTestName();
         FileUtils.delete(fileName);
         final MVStore s = new MVStore.Builder().
@@ -95,7 +101,7 @@ public class TestConcurrent extends TestMVStore {
         }
     }
 
-    private void testConcurrentSaveCompact() throws Exception {
+    private void testConcurrentSaveCompact() {
         String fileName = "memFS:" + getTestName();
         FileUtils.delete(fileName);
         final MVStore s = new MVStore.Builder().
@@ -107,7 +113,7 @@ public class TestConcurrent extends TestMVStore {
             final MVMap<Integer, Integer> dataMap = s.openMap("data");
             Task task = new Task() {
                 @Override
-                public void call() throws Exception {
+                public void call() {
                     int i = 0;
                     while (!stop) {
                         s.compact(100, 1024 * 1024);
@@ -152,7 +158,7 @@ public class TestConcurrent extends TestMVStore {
         for (int i = 0; i < tasks.length; i++) {
             tasks[i] = new Task() {
                 @Override
-                public void call() throws Exception {
+                public void call() {
                     Random r = new Random();
                     WriteBuffer buff = new WriteBuffer();
                     while (!stop) {
@@ -198,7 +204,7 @@ public class TestConcurrent extends TestMVStore {
             s.setAutoCommitDelay(1);
             Task task = new Task() {
                 @Override
-                public void call() throws Exception {
+                public void call() {
                     while (!stop) {
                         s.compact(100, 1024 * 1024);
                     }
@@ -210,7 +216,7 @@ public class TestConcurrent extends TestMVStore {
             final AtomicInteger counter = new AtomicInteger();
             Task task2 = new Task() {
                 @Override
-                public void call() throws Exception {
+                public void call() {
                     while (!stop) {
                         int i = counter.getAndIncrement();
                         dataMap.put(i, i * 10);
@@ -247,7 +253,7 @@ public class TestConcurrent extends TestMVStore {
         }
         Task task = new Task() {
             @Override
-            public void call() throws Exception {
+            public void call() {
                 int i = 0;
                 while (!stop) {
                     map.put(i % 100, i % 100);
@@ -281,7 +287,7 @@ public class TestConcurrent extends TestMVStore {
         try {
             Task task = new Task() {
                 @Override
-                public void call() throws Exception {
+                public void call() {
                     while (!stop) {
                         s.compact(100, 1024 * 1024);
                     }
@@ -290,7 +296,7 @@ public class TestConcurrent extends TestMVStore {
             task.execute();
             Task task2 = new Task() {
                 @Override
-                public void call() throws Exception {
+                public void call() {
                     while (!stop) {
                         s.compact(100, 1024 * 1024);
                     }
@@ -323,7 +329,7 @@ public class TestConcurrent extends TestMVStore {
                 m.put(1, 1);
                 Task task = new Task() {
                     @Override
-                    public void call() throws Exception {
+                    public void call() {
                         while (!stop) {
                             m.put(1, 1);
                             s.commit();
@@ -386,7 +392,7 @@ public class TestConcurrent extends TestMVStore {
                 final AtomicInteger counter = new AtomicInteger();
                 Task task = new Task() {
                     @Override
-                    public void call() throws Exception {
+                    public void call() {
                         while (!stop) {
                             int x = counter.getAndIncrement();
                             if (x >= count) {
@@ -451,7 +457,7 @@ public class TestConcurrent extends TestMVStore {
             final AtomicInteger counter = new AtomicInteger();
             Task task = new Task() {
                 @Override
-                public void call() throws Exception {
+                public void call() {
                     while (!stop) {
                         counter.incrementAndGet();
                         s.commit();
@@ -483,7 +489,7 @@ public class TestConcurrent extends TestMVStore {
                 final AtomicInteger counter = new AtomicInteger();
                 Task task = new Task() {
                     @Override
-                    public void call() throws Exception {
+                    public void call() {
                         while (!stop) {
                             s.setStoreVersion(counter.incrementAndGet());
                             s.commit();
@@ -499,7 +505,7 @@ public class TestConcurrent extends TestMVStore {
                     // sometimes closing works, in which case
                     // storing must fail at some point (not necessarily
                     // immediately)
-                    for (int x = counter.get(), y = x; x <= y + 2; x++) {
+                    for (int x = counter.get(), y = x + 2; x <= y; x++) {
                         Thread.sleep(1);
                     }
                     Exception e = task.getException();
@@ -529,7 +535,7 @@ public class TestConcurrent extends TestMVStore {
             final Random rand = new Random(1);
             Task task = new Task() {
                 @Override
-                public void call() throws Exception {
+                public void call() {
                     try {
                         while (!stop) {
                             if (rand.nextBoolean()) {
@@ -651,7 +657,7 @@ public class TestConcurrent extends TestMVStore {
         final Random r = new Random();
         Task task = new Task() {
             @Override
-            public void call() throws Exception {
+            public void call() {
                 while (!stop) {
                     int x = r.nextInt(len);
                     if (r.nextBoolean()) {
@@ -704,7 +710,7 @@ public class TestConcurrent extends TestMVStore {
         final Random rand = new Random(1);
         Task task = new Task() {
             @Override
-            public void call() throws Exception {
+            public void call() {
                 while (!stop) {
                     try {
                         if (rand.nextBoolean()) {
@@ -715,13 +721,7 @@ public class TestConcurrent extends TestMVStore {
                         m.get(rand.nextInt(size));
                     } catch (ConcurrentModificationException e) {
                         detected.incrementAndGet();
-                    } catch (NegativeArraySizeException e) {
-                        notDetected.incrementAndGet();
-                    } catch (ArrayIndexOutOfBoundsException e) {
-                        notDetected.incrementAndGet();
-                    } catch (IllegalArgumentException e) {
-                        notDetected.incrementAndGet();
-                    } catch (NullPointerException e) {
+                    } catch (NegativeArraySizeException | ArrayIndexOutOfBoundsException | IllegalArgumentException | NullPointerException e) {
                         notDetected.incrementAndGet();
                     }
                 }
@@ -741,13 +741,7 @@ public class TestConcurrent extends TestMVStore {
                         m.get(rand.nextInt(size));
                     } catch (ConcurrentModificationException e) {
                         detected.incrementAndGet();
-                    } catch (NegativeArraySizeException e) {
-                        notDetected.incrementAndGet();
-                    } catch (ArrayIndexOutOfBoundsException e) {
-                        notDetected.incrementAndGet();
-                    } catch (IllegalArgumentException e) {
-                        notDetected.incrementAndGet();
-                    } catch (NullPointerException e) {
+                    } catch (NegativeArraySizeException | ArrayIndexOutOfBoundsException | IllegalArgumentException | NullPointerException e) {
                         notDetected.incrementAndGet();
                     }
                 }
@@ -771,7 +765,7 @@ public class TestConcurrent extends TestMVStore {
         s.commit();
         Task task = new Task() {
             @Override
-            public void call() throws Exception {
+            public void call() {
                 while (!stop) {
                     long v = s.getCurrentVersion() - 1;
                     Map<Integer, Integer> old = m.openVersion(v);