[Bug libgcj/16675] New: Null parameter values require explicit cast

[Bug libgcj/16675] New: Null parameter values require explicit cast

[richardl at redhat dot com]

[richardl@conundrum src]$ rpm -qa | grep gcj
libgcj-3.4.0-7
libgcj-devel-3.4.0-7

The following program fails to compile with gcj:

public class Test {
    public Test(Object obj) { }

    public void someTestMethod() {
        new Test(null) { };
    }

    public void someTestMethod2() {
        new Test((Object) null) { };
    }

}

[richardl@conundrum tmp]$ gcj -C Test.java
Test.java: In class `Test':
Test.java: In method `Test.someTestMethod()':
Test.java:4: error: No constructor matching `(Test,void)' found in class `Test'.
       public void someTestMethod() {
                                     ^
Test.java: In class `Test$1':
Test.java: In constructor `(Test,void)':
Test.java:5: error: Can't find constructor `Test$1(V)' in type `Test$1'.
           new Test(null) { };
               ^
2 errors

This compiles fine with javac. The workaround is to cast the null, as shown in
the second test method.

-- 
           Summary: Null parameter values require explicit cast
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: richardl at redhat dot com
                CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
                    dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16675

[Bug java/16675] Null parameter values require explicit cast

[mckinlay at redhat dot com]

------- Additional Comments From mckinlay at redhat dot com  2004-07-22 20:17 -------
Confirmed. Compiler bug, so moving to java category.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|libgcj                      |java
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-07-22 20:17:04
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16675

[Bug java/16675] Null parameter values for anonymous constructor invocation require explicit cast

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-23 20:43 -------
We now get an ICE on the mainline (which I think can almost considered a regression) :
Test.java: In class 'Test':
Test.java: In method 'Test.someTestMethod()':
Test.java:5: internal compiler error: in mangle_pointer_type, at java/mangle.c:402
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|2004-07-22 20:17:04         |2004-10-23 20:43:15
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16675

[Bug java/16675] [4.0 Regression] Null parameter values for anonymous constructor invocation require explicit cast

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Null parameter values for   |[4.0 Regression] Null
                   |anonymous constructor       |parameter values for
                   |invocation require explicit |anonymous constructor
                   |cast                        |invocation require explicit
                   |                            |cast
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16675

[Bug java/16675] [4.0 Regression] Null parameter values for anonymous constructor invocation require explicit cast

[tromey at gcc dot gnu dot org]

------- Additional Comments From tromey at gcc dot gnu dot org  2004-12-02 18:11 -------
I'm testing a patch


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |tromey at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16675

[Bug java/16675] [4.0 Regression] Null parameter values for anonymous constructor invocation require explicit cast

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-12-02 19:38 -------
Subject: Bug 16675

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	tromey@gcc.gnu.org	2004-12-02 19:38:49

Modified files:
	libjava        : ChangeLog 
Added files:
	libjava/testsuite/libjava.compile: PR16675.java 

Log message:
	For PR java/16675:
	* testsuite/libjava.compile/PR16675.java: New file.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/ChangeLog.diff?cvsroot=gcc&r1=1.3257&r2=1.3258
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/testsuite/libjava.compile/PR16675.java.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16675

[Bug java/16675] [4.0 Regression] Null parameter values for anonymous constructor invocation require explicit cast

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-12-02 19:41 -------
Subject: Bug 16675

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	tromey@gcc.gnu.org	2004-12-02 19:41:03

Modified files:
	gcc/java       : ChangeLog parse.y 

Log message:
	PR java/16675:
	* parse.y (craft_constructor): Special case null_pointer_node.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/java/ChangeLog.diff?cvsroot=gcc&r1=1.1511&r2=1.1512
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/java/parse.y.diff?cvsroot=gcc&r1=1.523&r2=1.524



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16675

[Bug java/16675] [4.0 Regression] Null parameter values for anonymous constructor invocation require explicit cast

[tromey at gcc dot gnu dot org]

------- Additional Comments From tromey at gcc dot gnu dot org  2004-12-02 19:44 -------
Fix checked in


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16675