[java decompiler] getting rid of deprecated API usage

GitOrigin-RevId: 4b575f5001e391224bd77fc71483ac0ab0c42787

src/org/jetbrains/java/decompiler/modules/decompiler/decompose/DominatorTreeExceptionFilter.java

@@ -1,4 +1,4 @@
-// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package org.jetbrains.java.decompiler.modules.decompiler.decompose;
 
 import org.jetbrains.java.decompiler.modules.decompiler.StatEdge;
@@ -127,16 +127,15 @@ public class DominatorTreeExceptionFilter {
           Set<Integer> range = entry.getValue();
 
           if (range.contains(id)) {
-
             Integer exit;
-
             if (!range.contains(childid)) {
               exit = childid;
             }
+            else if (map.containsKey(handler)) {
+              exit = -1;
+            }
             else {
-              // after replacing 'new Integer(-1)' with '-1' Eclipse throws a NullPointerException on the following line
-              // could be a bug in Eclipse or some obscure specification glitch, FIXME: needs further investigation
-              exit = map.containsKey(handler) ? new Integer(-1) : mapChild.get(handler);
+              exit = mapChild.get(handler);
             }
 
             if (exit != null) {