Maurizio Cimadamore said the following on 04/27/11 18:35:
On 27/04/11 09:18, David Holmes wrote:
What I suggested on coin-dev ( which has finally turned up now that
someone has unblocked the openjdk mail pipes ;-) ) is that instead of
doing an analysis of the expected thrown types, to simply warn for the
more common mistake of catching a superclass before a subclass.
So, you are saying that the JDK 7 compiler should stop generating
additional warnings, and start behaving as usual (we always had errors
when catching supertype after subtype, and such).
In that case I guess that is what I am suggesting.
Is there a @SuppressWarnings setting for these warnings?
David
Maurizio
David
Maurizio
Cheers,
David
Joe Darcy said the following on 04/27/11 11:53:
Hello.
FYI, javac in JDK 7 does a more precise analysis than before on
what catch blocks can actually be reached and warnings are issued
for unreachable catch blocks. I've extracted those warnings from a
recent full JDK build in case anyone wants to update the code in
question.
-Joe
../../../../../../src/share/classes/com/sun/corba/se/impl/protocol/BootstrapServerRequestDispatcher.java:124:
warning: unreachable catch clause
} catch (java.lang.Exception ex) {
^
thrown type RuntimeException has already been caught
../../../../../../src/share/classes/com/sun/corba/se/impl/protocol/BootstrapServerRequestDispatcher.java:124:
warning: unreachable catch clause
} catch (java.lang.Exception ex) {
^
thrown type RuntimeException has already been caught
../../../src/share/classes/java/util/concurrent/ThreadPoolExecutor.java:1115:
warning: unreachable catch clause
} catch (Throwable x) {
^
thrown types RuntimeException,Error have already been caught
../../../src/share/classes/java/net/DatagramSocket.java:183:
warning: unreachable catch clause
} catch(IOException e) {
^
thrown type SocketException has already been caught
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
2 warnings
../../../src/share/classes/java/security/cert/X509CertSelector.java:2217:
warning: unreachable catch clause
} catch (CertificateException e3) {
^
thrown types
CertificateNotYetValidException,CertificateExpiredException have
already been caught
../../../src/share/classes/javax/management/modelmbean/RequiredModelMBean.java:1220:
warning: unreachable catch clause
} catch (Exception e) {
^
thrown types
InvocationTargetException,IllegalAccessException,RuntimeException
have already been caught
1 warning
../../../../src/share/classes/sun/security/rsa/RSASignature.java:205:
warning: unreachable catch clause
} catch (GeneralSecurityException e) {
^
thrown type BadPaddingException has already been caught
