avoid using Arrays.asList for a single element

src/org/jetbrains/java/decompiler/code/cfg/ControlFlowGraph.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2015 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -397,7 +397,7 @@ public class ControlFlowGraph implements CodeConstants {
 
         ExceptionRangeCFG range = new ExceptionRangeCFG(protectedRange, handle, handler.exceptionClass == null
                                                                                 ? null
-                                                                                : Arrays.asList(handler.exceptionClass));
+                                                                                : Collections.singletonList(handler.exceptionClass));
         mapRanges.put(key, range);
 
         exceptions.add(range);

src/org/jetbrains/java/decompiler/main/AssertProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2015 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -173,8 +173,7 @@ public class AssertProcessor {
 
     Exprent ascond = null, retcond = null;
     if (exprres[0] != null) {
-      ascond = new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT,
-                                   Arrays.asList((Exprent)exprres[0]), throwError.bytecode);
+      ascond = new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, (Exprent)exprres[0], throwError.bytecode);
       retcond = SecondaryFunctionsHelper.propagateBoolNot(ascond);
     }
 

src/org/jetbrains/java/decompiler/modules/decompiler/ExprProcessor.java

@@ -336,7 +336,7 @@ public class ExprProcessor implements CodeConstants {
 
       Instruction instr = seq.getInstr(i);
       Integer bytecode_offset = block.getOldOffset(i);
-      Set<Integer> bytecode_offsets = bytecode_offset >= 0 ? new HashSet<Integer>(Arrays.asList(bytecode_offset)) : null;
+      Set<Integer> bytecode_offsets = bytecode_offset >= 0 ? Collections.singleton(bytecode_offset) : null;
 
       switch (instr.opcode) {
         case opc_aconst_null:

src/org/jetbrains/java/decompiler/modules/decompiler/IfHelper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2015 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -252,8 +252,7 @@ public class IfHelper {
 
             List<Exprent> lstOperands = new ArrayList<Exprent>();
             lstOperands.add(statexpr.getCondition());
-            lstOperands.add(new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT,
-                                                Arrays.asList(ifchild.getHeadexprent().getCondition()), null));
+            lstOperands.add(new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, ifchild.getHeadexprent().getCondition(), null));
             statexpr.setCondition(new FunctionExprent(FunctionExprent.FUNCTION_CADD, lstOperands, null));
             statexpr.addBytecodeOffsets(ifchild.getHeadexprent().bytecode);
 
@@ -310,8 +309,7 @@ public class IfHelper {
             lstOperands.add(firstif.getHeadexprent().getCondition());
 
             if (path == 2) {
-              lstOperands.set(0, new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT,
-                                                     Arrays.asList(lstOperands.get(0)), null));
+              lstOperands.set(0, new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, lstOperands.get(0), null));
             }
 
             lstOperands.add(statexpr.getCondition());
@@ -361,7 +359,7 @@ public class IfHelper {
           // negate the if condition
           IfExprent statexpr = firstif.getHeadexprent();
           statexpr
-            .setCondition(new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, Arrays.asList(statexpr.getCondition()), null));
+            .setCondition(new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, statexpr.getCondition(), null));
 
           return true;
         }
@@ -556,7 +554,7 @@ public class IfHelper {
 
       // negate the if condition
       IfExprent statexpr = ifstat.getHeadexprent();
-      statexpr.setCondition(new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, Arrays.asList(statexpr.getCondition()), null));
+      statexpr.setCondition(new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, statexpr.getCondition(), null));
 
       if (noelsestat) {
         StatEdge ifedge = ifstat.getIfEdge();

src/org/jetbrains/java/decompiler/modules/decompiler/PPandMMHelper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2015 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,7 +25,6 @@ import org.jetbrains.java.decompiler.modules.decompiler.sforms.FlattenStatements
 import org.jetbrains.java.decompiler.modules.decompiler.stats.RootStatement;
 import org.jetbrains.java.decompiler.struct.gen.VarType;
 
-import java.util.Arrays;
 import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
@@ -138,7 +137,7 @@ public class PPandMMHelper {
             if (left.equals(econd) && (midlayer == null || midlayer.equals(condtype))) {
               FunctionExprent ret = new FunctionExprent(
                 func.getFuncType() == FunctionExprent.FUNCTION_ADD ? FunctionExprent.FUNCTION_PPI : FunctionExprent.FUNCTION_MMI,
-                Arrays.asList(econd), func.bytecode);
+                econd, func.bytecode);
               ret.setImplicitType(condtype);
 
               exprentReplaced = true;

src/org/jetbrains/java/decompiler/modules/decompiler/SecondaryFunctionsHelper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2015 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -286,7 +286,7 @@ public class SecondaryFunctionsHelper {
                   cexpr2.getExprType().type == CodeConstants.TYPE_BOOLEAN) {
 
                 if (cexpr1.getIntValue() == 0 && cexpr2.getIntValue() != 0) {
-                  return new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, Arrays.asList(lstOperands.get(0)), fexpr.bytecode);
+                  return new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, lstOperands.get(0), fexpr.bytecode);
                 }
                 else if (cexpr1.getIntValue() != 0 && cexpr2.getIntValue() == 0) {
                   return lstOperands.get(0);
@@ -407,8 +407,7 @@ public class SecondaryFunctionsHelper {
             case FunctionExprent.FUNCTION_COR:
               List<Exprent> operands = fparam.getLstOperands();
               for (int i = 0; i < operands.size(); i++) {
-                Exprent newparam = new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT,
-                                                       Arrays.asList(operands.get(i)), operands.get(i).bytecode);
+                Exprent newparam = new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, operands.get(i), operands.get(i).bytecode);
 
                 Exprent retparam = propagateBoolNot(newparam);
                 operands.set(i, retparam == null ? newparam : retparam);

src/org/jetbrains/java/decompiler/modules/decompiler/SimplifyExprentsHelper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2015 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -448,7 +448,7 @@ public class SimplifyExprentsHelper {
             if (left.type != Exprent.EXPRENT_VAR && left.equals(econd)) {
               FunctionExprent ret = new FunctionExprent(
                 func.getFuncType() == FunctionExprent.FUNCTION_ADD ? FunctionExprent.FUNCTION_PPI : FunctionExprent.FUNCTION_MMI,
-                Arrays.asList(econd), func.bytecode);
+                econd, func.bytecode);
               ret.setImplicitType(VarType.VARTYPE_INT);
               return ret;
             }

src/org/jetbrains/java/decompiler/modules/decompiler/exps/FunctionExprent.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2015 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -220,6 +220,10 @@ public class FunctionExprent extends Exprent {
     addBytecodeOffsets(bytecodeOffsets);
   }
 
+  public FunctionExprent(int funcType, Exprent operand, Set<Integer> bytecodeOffsets) {
+    this(funcType, Collections.singletonList(operand), bytecodeOffsets);
+  }
+
   @Override
   public VarType getExprType() {
     VarType exprType = null;

src/org/jetbrains/java/decompiler/modules/decompiler/exps/IfExprent.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2015 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -135,7 +135,7 @@ public class IfExprent extends Exprent {
   }
 
   public IfExprent negateIf() {
-    condition = new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, Collections.singletonList(condition), condition.bytecode);
+    condition = new FunctionExprent(FunctionExprent.FUNCTION_BOOL_NOT, condition, condition.bytecode);
     return this;
   }