Actually, to get a more accurate picture than just looking at JConsole graphs, you could add -verbose:gc to the jvm flags and report back with the before and after logs that produces.
On Wed, Nov 10, 2010 at 2:26 PM, Chris Conroy <[email protected]> wrote: > Yves, > > You say this error did not occur before your most recent change. It > would be useful to get an idea for the memory usage before this > change: it could be that your app is just very large and you were > already on the edge of an OOME, your change really necessitates more > memory, or this is a pathological case. > > > Here are a few things to try for gathering more useful information: > > -Try attaching jconsole to the compile in the before and after > scenario and see how the memory usage compares between both. > > -add -XX:-HeapDumpOnOutOfMemoryError to the JVM args for your failing > compile. There may be some interesting data in the resulting dump. If > you can share the heap dump with us (you can send me a link off list > if you like), then I can take a look. > > -Of course, make sure you are using the latest version of the GWT > compiler. The 2.1 compiler contains some changes that will reduce the > memory footprint of your compile. > > On Wed, Nov 10, 2010 at 1:20 PM, Scott Blum <[email protected]> wrote: >> Hmmm.... what happens if you turn down the log level, say to "WARN"? >> Are you invoking from the command line, or are you using the Google Plugin >> for Eclipse? >> >> On Wed, Nov 10, 2010 at 4:16 PM, yves <[email protected]> wrote: >>> >>> Scott, >>> Thx for the tip. Anyway I can't allocate more than -Xmx1590M and I get >>> exactly the same error. >>> Yves >>> >>> >>> On 9 nov, 07:47, Scott Blum <[email protected]> wrote: >>> > Hmm.... can you increase your virtual memory? >>> > >>> > On Mon, Nov 8, 2010 at 5:13 PM, yves <[email protected]> wrote: >>> > > I can't, I only have 2GB RAM, I get this error as from -Xmx1024M >>> > > [java] Error occurred during initialization of VM >>> > > [java] Could not reserve enough space for object heap >>> > > [java] Could not create the Java virtual machine. >>> > >>> > > and the log level is INFO >>> > > Yves >>> > >>> > > On 8 nov, 22:53, Scott Blum <[email protected]> wrote: >>> > > > What if you turn the heap up to -Xmx2048M? >>> > >>> > > > What log level are you using? >>> > >>> > > > On Mon, Nov 8, 2010 at 4:44 PM, yves <[email protected]> wrote: >>> > > > > Hi, >>> > >>> > > > > I had a class named "ResultNode" and the project compiled fine. >>> > > > > In order to improve the code, I changed this class by adding >>> > > > > generic >>> > > > > stuff like that : ResultNode<T extends ResultNode<?>>. >>> > > > > Of course I adapted the entire project where needed to take >>> > > > > advantage >>> > > > > of this change. >>> > >>> > > > > Now I get an "Internal compiler error" >>> > >>> > > > > This is produced with java memory settings "-Xmx768M" and >>> > > > > "-Xss32M" . >>> > > > > (usually the settings are -Xmx128M and default value for -Xss and >>> > > > > I >>> > > > > never had such problem). >>> > >>> > > > > BTW : a "javac" compilation on the project is succesfull, so it is >>> > > > > not >>> > > > > a java error. >>> > >>> > > > > Any suggestion ? If more information is needed do not hesitate to >>> > > > > ask. >>> > > > > Thanks in advance >>> > > > > Yves >>> > >>> > > > > [java] Compiling module com.mycompany.myproject.MyProject >>> > > > > [java] [ERROR] Errors in >>> > > > > 'file:/C:/java/workspace/MyProject/ >>> > > > > src/com/mycompany/myproject/client/model/AppActivityMapper.java' >>> > > > > [java] [ERROR] Internal compiler error >>> > > > > [java] java.lang.OutOfMemoryError: Java heap space >>> > > > > [java] at java.util.Arrays.copyOf(Arrays.java:2882) >>> > > > > [java] at >>> > >>> > > >>> > > java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java: >>> > > > > 100) >>> > > > > [java] at >>> > > > > >>> > > > > java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:390) >>> > > > > [java] at >>> > > java.lang.StringBuilder.append(StringBuilder.java:119) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.dev.util.log.PrintWriterTreeLogger.doBranch(PrintWriterTreeLogger.java: >>> > > > > 59) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.dev.util.log.AbstractTreeLogger.branch(AbstractTreeLogger.java: >>> > > > > 126) >>> > > > > [java] at >>> > > > > com.google.gwt.core.ext.TreeLogger.branch(TreeLogger.java:222) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java: >>> > > > > 939) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkTypeArgument(SerializableTypeOracleBuilder.java: >>> > > > > 1412) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtype(SerializableTypeOracleBuilder.java: >>> > > > > 1219) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtypes(SerializableTypeOracleBuilder.java: >>> > > > > 1309) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java: >>> > > > > 1011) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkArrayInstantiable(SerializableTypeOracleBuilder.java: >>> > > > > 1107) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java: >>> > > > > 977) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkTypeArgument(SerializableTypeOracleBuilder.java: >>> > > > > 1412) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtype(SerializableTypeOracleBuilder.java: >>> > > > > 1219) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtypes(SerializableTypeOracleBuilder.java: >>> > > > > 1309) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java: >>> > > > > 1011) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkArrayInstantiable(SerializableTypeOracleBuilder.java: >>> > > > > 1107) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java: >>> > > > > 977) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkTypeArgument(SerializableTypeOracleBuilder.java: >>> > > > > 1412) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtype(SerializableTypeOracleBuilder.java: >>> > > > > 1219) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtypes(SerializableTypeOracleBuilder.java: >>> > > > > 1309) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java: >>> > > > > 1011) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkArrayInstantiable(SerializableTypeOracleBuilder.java: >>> > > > > 1107) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java: >>> > > > > 977) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkTypeArgument(SerializableTypeOracleBuilder.java: >>> > > > > 1412) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtype(SerializableTypeOracleBuilder.java: >>> > > > > 1219) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtypes(SerializableTypeOracleBuilder.java: >>> > > > > 1309) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java: >>> > > > > 1011) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkArrayInstantiable(SerializableTypeOracleBuilder.java: >>> > > > > 1107) >>> > > > > [java] at >>> > >>> > > >>> > > com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java: >>> > > > > 977) >>> > > > > [java] [ERROR] Unexpected >>> > >>> > > > > -- >>> > > > >http://groups.google.com/group/Google-Web-Toolkit-Contributors >>> > >>> > > -- >>> > >http://groups.google.com/group/Google-Web-Toolkit-Contributors >>> >>> -- >>> http://groups.google.com/group/Google-Web-Toolkit-Contributors >> >> -- >> http://groups.google.com/group/Google-Web-Toolkit-Contributors > -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
