Mercurial > jdk8-mips64-public > langtools / changeset

     1.1 --- a/src/share/classes/com/sun/tools/javac/code/Flags.java	Wed Oct 31 13:48:15 2012 -0700
     1.2 +++ b/src/share/classes/com/sun/tools/javac/code/Flags.java	Thu Nov 01 10:48:36 2012 +0100
     1.3 @@ -258,6 +258,12 @@
     1.4       */
     1.5      public static final long DEFAULT = 1L<<43;
     1.6  
     1.7 +    /**
     1.8 +     * Flag that marks class as auxiliary, ie a non-public class following
     1.9 +     * the public class in a source file, that could block implicit compilation.
    1.10 +     */
    1.11 +    public static final long AUXILIARY = 1L<<43;
    1.12 +
    1.13      /** Modifier masks.
    1.14       */
    1.15      public static final int

     2.1 --- a/src/share/classes/com/sun/tools/javac/code/Lint.java	Wed Oct 31 13:48:15 2012 -0700
     2.2 +++ b/src/share/classes/com/sun/tools/javac/code/Lint.java	Thu Nov 01 10:48:36 2012 +0100
     2.3 @@ -129,6 +129,13 @@
     2.4       */
     2.5      public enum LintCategory {
     2.6          /**
     2.7 +         * Warn when code refers to a auxiliary class that is hidden in a source file (ie source file name is
     2.8 +         * different from the class name, and the type is not properly nested) and the referring code
     2.9 +         * is not located in the same source file.
    2.10 +         */
    2.11 +        AUXILIARYCLASS("auxiliaryclass"),
    2.12 +
    2.13 +        /**
    2.14           * Warn about use of unnecessary casts.
    2.15           */
    2.16          CAST("cast"),

     3.1 --- a/src/share/classes/com/sun/tools/javac/comp/Attr.java	Wed Oct 31 13:48:15 2012 -0700
     3.2 +++ b/src/share/classes/com/sun/tools/javac/comp/Attr.java	Thu Nov 01 10:48:36 2012 +0100
     3.3 @@ -3050,6 +3050,7 @@
     3.4                  // except for two situations:
     3.5                  owntype = sym.type;
     3.6                  if (owntype.hasTag(CLASS)) {
     3.7 +                    chk.checkForBadAuxiliaryClassAccess(tree.pos(), env, (ClassSymbol)sym);
     3.8                      Type ownOuter = owntype.getEnclosingType();
     3.9  
    3.10                      // (a) If the symbol's type is parameterized, erase it

     4.1 --- a/src/share/classes/com/sun/tools/javac/comp/Check.java	Wed Oct 31 13:48:15 2012 -0700
     4.2 +++ b/src/share/classes/com/sun/tools/javac/comp/Check.java	Thu Nov 01 10:48:36 2012 +0100
     4.3 @@ -27,6 +27,7 @@
     4.4  
     4.5  import java.util.*;
     4.6  import java.util.Set;
     4.7 +import javax.tools.JavaFileManager;
     4.8  
     4.9  import com.sun.tools.javac.code.*;
    4.10  import com.sun.tools.javac.jvm.*;
    4.11 @@ -77,6 +78,7 @@
    4.12      private boolean suppressAbortOnBadClassFile;
    4.13      private boolean enableSunApiLintControl;
    4.14      private final TreeInfo treeinfo;
    4.15 +    private final JavaFileManager fileManager;
    4.16  
    4.17      // The set of lint options currently in effect. It is initialized
    4.18      // from the context, and then is set/reset as needed by Attr as it
    4.19 @@ -109,6 +111,7 @@
    4.20          Options options = Options.instance(context);
    4.21          lint = Lint.instance(context);
    4.22          treeinfo = TreeInfo.instance(context);
    4.23 +        fileManager = context.get(JavaFileManager.class);
    4.24  
    4.25          Source source = Source.instance(context);
    4.26          allowGenerics = source.allowGenerics();
    4.27 @@ -3230,6 +3233,19 @@
    4.28              return true;
    4.29          }
    4.30  
    4.31 +    /** Check that an auxiliary class is not accessed from any other file than its own.
    4.32 +     */
    4.33 +    void checkForBadAuxiliaryClassAccess(DiagnosticPosition pos, Env<AttrContext> env, ClassSymbol c) {
    4.34 +        if (lint.isEnabled(Lint.LintCategory.AUXILIARYCLASS) &&
    4.35 +            (c.flags() & AUXILIARY) != 0 &&
    4.36 +            rs.isAccessible(env, c) &&
    4.37 +            !fileManager.isSameFile(c.sourcefile, env.toplevel.sourcefile))
    4.38 +        {
    4.39 +            log.warning(pos, "auxiliary.class.accessed.from.outside.of.its.source.file",
    4.40 +                        c, c.sourcefile);
    4.41 +        }
    4.42 +    }
    4.43 +
    4.44      private class ConversionWarner extends Warner {
    4.45          final String uncheckedKey;
    4.46          final Type found;

     5.1 --- a/src/share/classes/com/sun/tools/javac/comp/MemberEnter.java	Wed Oct 31 13:48:15 2012 -0700
     5.2 +++ b/src/share/classes/com/sun/tools/javac/comp/MemberEnter.java	Thu Nov 01 10:48:36 2012 +0100
     5.3 @@ -1022,11 +1022,13 @@
     5.4              // name as a top-level package.
     5.5              if (checkClash &&
     5.6                  c.owner.kind == PCK && c.owner != syms.unnamedPackage &&
     5.7 -                reader.packageExists(c.fullname))
     5.8 -                {
     5.9 -                    log.error(tree.pos, "clash.with.pkg.of.same.name", Kinds.kindName(sym), c);
    5.10 -                }
    5.11 -
    5.12 +                reader.packageExists(c.fullname)) {
    5.13 +                log.error(tree.pos, "clash.with.pkg.of.same.name", Kinds.kindName(sym), c);
    5.14 +            }
    5.15 +            if (c.owner.kind == PCK && (c.flags_field & PUBLIC) == 0 &&
    5.16 +                !env.toplevel.sourcefile.isNameCompatible(c.name.toString(),JavaFileObject.Kind.SOURCE)) {
    5.17 +                c.flags_field |= AUXILIARY;
    5.18 +            }
    5.19          } catch (CompletionFailure ex) {
    5.20              chk.completionError(tree.pos(), ex);
    5.21          } finally {

     6.1 --- a/src/share/classes/com/sun/tools/javac/jvm/ClassReader.java	Wed Oct 31 13:48:15 2012 -0700
     6.2 +++ b/src/share/classes/com/sun/tools/javac/jvm/ClassReader.java	Thu Nov 01 10:48:36 2012 +0100
     6.3 @@ -1018,6 +1018,15 @@
     6.4                      ClassSymbol c = (ClassSymbol) sym;
     6.5                      Name n = readName(nextChar());
     6.6                      c.sourcefile = new SourceFileObject(n, c.flatname);
     6.7 +                    // If the class is a toplevel class, originating from a Java source file,
     6.8 +                    // but the class name does not match the file name, then it is
     6.9 +                    // an auxiliary class.
    6.10 +                    String sn = n.toString();
    6.11 +                    if (c.owner.kind == Kinds.PCK &&
    6.12 +                        sn.endsWith(".java") &&
    6.13 +                        !sn.equals(c.name.toString()+".java")) {
    6.14 +                        c.flags_field |= AUXILIARY;
    6.15 +                    }
    6.16                  }
    6.17              },
    6.18  

     7.1 --- a/src/share/classes/com/sun/tools/javac/resources/compiler.properties	Wed Oct 31 13:48:15 2012 -0700
     7.2 +++ b/src/share/classes/com/sun/tools/javac/resources/compiler.properties	Thu Nov 01 10:48:36 2012 +0100
     7.3 @@ -1847,6 +1847,11 @@
     7.4  
     7.5  #####
     7.6  
     7.7 +# 0: type, 1: file name
     7.8 +compiler.warn.auxiliary.class.accessed.from.outside.of.its.source.file=\
     7.9 +    auxiliary class {0} in {1} should not be accessed from outside its own source file
    7.10 +
    7.11 +
    7.12  ## The first argument ({0}) is a "kindname".
    7.13  # 0: symbol kind, 1: symbol, 2: symbol
    7.14  compiler.err.abstract.cant.be.accessed.directly=\

     8.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     8.2 +++ b/test/tools/javac/diags/examples/AuxiliaryClassWarning/ClassUsingAuxiliary.java	Thu Nov 01 10:48:36 2012 +0100
     8.3 @@ -0,0 +1,29 @@
     8.4 +/*
     8.5 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
     8.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     8.7 + *
     8.8 + * This code is free software; you can redistribute it and/or modify it
     8.9 + * under the terms of the GNU General Public License version 2 only, as
    8.10 + * published by the Free Software Foundation.
    8.11 + *
    8.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    8.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    8.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    8.15 + * version 2 for more details (a copy is included in the LICENSE file that
    8.16 + * accompanied this code).
    8.17 + *
    8.18 + * You should have received a copy of the GNU General Public License version
    8.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    8.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    8.21 + *
    8.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    8.23 + * or visit www.oracle.com if you need additional information or have any
    8.24 + * questions.
    8.25 + */
    8.26 +
    8.27 +// key: compiler.warn.auxiliary.class.accessed.from.outside.of.its.source.file
    8.28 +// options: -Xlint:auxiliaryclass
    8.29 +
    8.30 +class ClassUsingAuxiliary {
    8.31 +    AuxiliaryClass ahem;
    8.32 +}

     9.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     9.2 +++ b/test/tools/javac/diags/examples/AuxiliaryClassWarning/ClassWithAuxiliary.java	Thu Nov 01 10:48:36 2012 +0100
     9.3 @@ -0,0 +1,29 @@
     9.4 +/*
     9.5 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
     9.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     9.7 + *
     9.8 + * This code is free software; you can redistribute it and/or modify it
     9.9 + * under the terms of the GNU General Public License version 2 only, as
    9.10 + * published by the Free Software Foundation.
    9.11 + *
    9.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    9.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    9.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    9.15 + * version 2 for more details (a copy is included in the LICENSE file that
    9.16 + * accompanied this code).
    9.17 + *
    9.18 + * You should have received a copy of the GNU General Public License version
    9.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    9.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    9.21 + *
    9.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    9.23 + * or visit www.oracle.com if you need additional information or have any
    9.24 + * questions.
    9.25 + */
    9.26 +
    9.27 +class ClassWithAuxiliaryClass {
    9.28 +}
    9.29 +
    9.30 +// Auxiliary class that cannot be found through implicit compilation.
    9.31 +class AuxiliaryClass {
    9.32 +}

    10.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    10.2 +++ b/test/tools/javac/warnings/AuxiliaryClass/ClassUsingAnotherAuxiliary.java	Thu Nov 01 10:48:36 2012 +0100
    10.3 @@ -0,0 +1,34 @@
    10.4 +/*
    10.5 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
    10.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    10.7 + *
    10.8 + * This code is free software; you can redistribute it and/or modify it
    10.9 + * under the terms of the GNU General Public License version 2 only, as
   10.10 + * published by the Free Software Foundation.
   10.11 + *
   10.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
   10.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   10.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   10.15 + * version 2 for more details (a copy is included in the LICENSE file that
   10.16 + * accompanied this code).
   10.17 + *
   10.18 + * You should have received a copy of the GNU General Public License version
   10.19 + * 2 along with this work; if not, write to the Free Software Foundation,
   10.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   10.21 + *
   10.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   10.23 + * or visit www.oracle.com if you need additional information or have any
   10.24 + * questions.
   10.25 + */
   10.26 +
   10.27 +/**
   10.28 + * @test
   10.29 + * @compile ClassUsingAnotherAuxiliary.java NotAClassName.java
   10.30 + * @compile -Xlint:auxiliaryclass ClassUsingAnotherAuxiliary.java NotAClassName.java
   10.31 + * @compile/fail/ref=ClassUsingAnotherAuxiliary.out -XDrawDiagnostics -Werror -Xlint:auxiliaryclass ClassUsingAnotherAuxiliary.java NotAClassName.java
   10.32 + */
   10.33 +
   10.34 +class ClassUsingAnotherAuxiliary {
   10.35 +    AnAuxiliaryClass ahem;
   10.36 +}
   10.37 +

    11.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    11.2 +++ b/test/tools/javac/warnings/AuxiliaryClass/ClassUsingAnotherAuxiliary.out	Thu Nov 01 10:48:36 2012 +0100
    11.3 @@ -0,0 +1,4 @@
    11.4 +ClassUsingAnotherAuxiliary.java:32:5: compiler.warn.auxiliary.class.accessed.from.outside.of.its.source.file: AnAuxiliaryClass, NotAClassName.java
    11.5 +- compiler.err.warnings.and.werror
    11.6 +1 error
    11.7 +1 warning

    12.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    12.2 +++ b/test/tools/javac/warnings/AuxiliaryClass/ClassUsingAuxiliary.java	Thu Nov 01 10:48:36 2012 +0100
    12.3 @@ -0,0 +1,34 @@
    12.4 +/*
    12.5 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
    12.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    12.7 + *
    12.8 + * This code is free software; you can redistribute it and/or modify it
    12.9 + * under the terms of the GNU General Public License version 2 only, as
   12.10 + * published by the Free Software Foundation.
   12.11 + *
   12.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
   12.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   12.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   12.15 + * version 2 for more details (a copy is included in the LICENSE file that
   12.16 + * accompanied this code).
   12.17 + *
   12.18 + * You should have received a copy of the GNU General Public License version
   12.19 + * 2 along with this work; if not, write to the Free Software Foundation,
   12.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   12.21 + *
   12.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   12.23 + * or visit www.oracle.com if you need additional information or have any
   12.24 + * questions.
   12.25 + */
   12.26 +
   12.27 +/**
   12.28 + * @test
   12.29 + * @clean ClassUsingAuxiliary ClassWithAuxiliary AuxiliaryClass ClassWithAuxiliary$NotAnAuxiliaryClass ClassWithAuxiliary$NotAnAuxiliaryClassEither
   12.30 + * @run compile ClassUsingAuxiliary.java ClassWithAuxiliary.java
   12.31 + * @run compile/fail/ref=ClassUsingAuxiliary1.out -XDrawDiagnostics -Werror -Xlint:auxiliaryclass ClassUsingAuxiliary.java ClassWithAuxiliary.java
   12.32 + * @run compile/fail/ref=ClassUsingAuxiliary2.out -XDrawDiagnostics -Werror -Xlint:auxiliaryclass ClassUsingAuxiliary.java
   12.33 + */
   12.34 +
   12.35 +class ClassUsingAuxiliary {
   12.36 +    AuxiliaryClass ahem;
   12.37 +}

    13.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    13.2 +++ b/test/tools/javac/warnings/AuxiliaryClass/ClassUsingAuxiliary1.out	Thu Nov 01 10:48:36 2012 +0100
    13.3 @@ -0,0 +1,4 @@
    13.4 +ClassUsingAuxiliary.java:33:5: compiler.warn.auxiliary.class.accessed.from.outside.of.its.source.file: AuxiliaryClass, ClassWithAuxiliary.java
    13.5 +- compiler.err.warnings.and.werror
    13.6 +1 error
    13.7 +1 warning

    14.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    14.2 +++ b/test/tools/javac/warnings/AuxiliaryClass/ClassUsingAuxiliary2.out	Thu Nov 01 10:48:36 2012 +0100
    14.3 @@ -0,0 +1,4 @@
    14.4 +ClassUsingAuxiliary.java:33:5: compiler.warn.auxiliary.class.accessed.from.outside.of.its.source.file: AuxiliaryClass, ClassWithAuxiliary.java
    14.5 +- compiler.err.warnings.and.werror
    14.6 +1 error
    14.7 +1 warning

    15.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    15.2 +++ b/test/tools/javac/warnings/AuxiliaryClass/ClassWithAuxiliary.java	Thu Nov 01 10:48:36 2012 +0100
    15.3 @@ -0,0 +1,31 @@
    15.4 +/*
    15.5 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
    15.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    15.7 + *
    15.8 + * This code is free software; you can redistribute it and/or modify it
    15.9 + * under the terms of the GNU General Public License version 2 only, as
   15.10 + * published by the Free Software Foundation.
   15.11 + *
   15.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
   15.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   15.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   15.15 + * version 2 for more details (a copy is included in the LICENSE file that
   15.16 + * accompanied this code).
   15.17 + *
   15.18 + * You should have received a copy of the GNU General Public License version
   15.19 + * 2 along with this work; if not, write to the Free Software Foundation,
   15.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   15.21 + *
   15.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   15.23 + * or visit www.oracle.com if you need additional information or have any
   15.24 + * questions.
   15.25 + */
   15.26 +
   15.27 +public class ClassWithAuxiliary {
   15.28 +    public static class NotAnAuxiliaryClass { }
   15.29 +    public class NotAnAuxiliaryClassEither { }
   15.30 +}
   15.31 +
   15.32 +// Auxiliary class that cannot be found through implicit compilation.
   15.33 +class AuxiliaryClass {
   15.34 +}

    16.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    16.2 +++ b/test/tools/javac/warnings/AuxiliaryClass/NotAClassName.java	Thu Nov 01 10:48:36 2012 +0100
    16.3 @@ -0,0 +1,25 @@
    16.4 +/*
    16.5 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
    16.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    16.7 + *
    16.8 + * This code is free software; you can redistribute it and/or modify it
    16.9 + * under the terms of the GNU General Public License version 2 only, as
   16.10 + * published by the Free Software Foundation.
   16.11 + *
   16.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
   16.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   16.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   16.15 + * version 2 for more details (a copy is included in the LICENSE file that
   16.16 + * accompanied this code).
   16.17 + *
   16.18 + * You should have received a copy of the GNU General Public License version
   16.19 + * 2 along with this work; if not, write to the Free Software Foundation,
   16.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   16.21 + *
   16.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   16.23 + * or visit www.oracle.com if you need additional information or have any
   16.24 + * questions.
   16.25 + */
   16.26 +
   16.27 +class AnAuxiliaryClass {
   16.28 +}

    17.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    17.2 +++ b/test/tools/javac/warnings/AuxiliaryClass/SelfClassWithAux.java	Thu Nov 01 10:48:36 2012 +0100
    17.3 @@ -0,0 +1,44 @@
    17.4 +/*
    17.5 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
    17.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    17.7 + *
    17.8 + * This code is free software; you can redistribute it and/or modify it
    17.9 + * under the terms of the GNU General Public License version 2 only, as
   17.10 + * published by the Free Software Foundation.
   17.11 + *
   17.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
   17.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   17.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   17.15 + * version 2 for more details (a copy is included in the LICENSE file that
   17.16 + * accompanied this code).
   17.17 + *
   17.18 + * You should have received a copy of the GNU General Public License version
   17.19 + * 2 along with this work; if not, write to the Free Software Foundation,
   17.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   17.21 + *
   17.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   17.23 + * or visit www.oracle.com if you need additional information or have any
   17.24 + * questions.
   17.25 + */
   17.26 +
   17.27 +/*
   17.28 + * Test that an auxiliary class referenced from its own source file,
   17.29 + * does not trigger the warning. Such code does not prevent implicit
   17.30 + * compilation. Also test that references to inner classes do not trigger the warning.
   17.31 + */
   17.32 +
   17.33 +/*
   17.34 + * @test
   17.35 + * @run compile -Werror -Xlint:auxiliaryclass SelfClassWithAux.java ClassWithAuxiliary.java
   17.36 + * @run compile -Werror -Xlint:auxiliaryclass SelfClassWithAux.java
   17.37 + */
   17.38 +
   17.39 +class SelfClassWithAux {
   17.40 +    Aux aux;
   17.41 +    ClassWithAuxiliary.NotAnAuxiliaryClass alfa;
   17.42 +    ClassWithAuxiliary.NotAnAuxiliaryClassEither beta;
   17.43 +}
   17.44 +
   17.45 +class Aux {
   17.46 +    Aux aux;
   17.47 +}