It is very easy to load some TrueType-Fonts (TTF) with Java.
1 | java.awt.Font.createFont(Font.TRUETYPE_FONT, new File("font.ttf")); |
But with some files I got the following Exception:
1 | java.awt.FontFormatException: Font name not found |
You can correct this with a font-editor to add the font names. For Linux I can advise the tool fontforge. It is very powerful also for convertions of fonts. For Debian you can simply install with the following command:
1 | apt-get install fontforge |
The last days my task was to port a very complex JBoss-Application from JBoss 4.2 to 5.1.0 GA. The Application has a couple of EJBs and many logic (Stateless-Beans, Stateful-Beans, Service-MBeans, etc.), a complex Web-Application built on top of Seam 2.1 and some simple Java-Clients accessing the provided businesslogic as a JBoss Client.
The whole application is built with maven.
In the past I imported the jbossall-client.jar directly into my Maven Repository. But I thought JBoss.org provides the used JARs via the repository http://repository.jboss.org/maven2/. The right package would be:
1 2 3 4 5 | <dependency> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-client</artifactid> <version>5.1.0.GA</version> </dependency> |
But this sounds better as it really is. Because of the transitive dependencies of some used packages, nearly the whole JBoss-Server is included. The developers of the JBoss-Servers sometimes using classifiers instead of splitting a mega-jar into several sub-jars. For example the org.jboss.jbossas:jboss-as-server artifact.
One solution would be to repackage all needed JARs to one JAR.
For me the solution was to build my own jboss-as-client, using a self-made pom with all needed dependencies. Because this is more the maven-way. But what is needed? This is quite easy. I tried to find the correct artifacts of the jar-files which are referenced by the jbossall-client.jar, delivered with the JBoss 5.1.0 release.
All transitive dependencies are excluded, to avoid the described problem.
If you have any suggestions how to optimize it or if I have something missed, please let me know.
And here is the result:
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778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 | <dependency> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-javaee</artifactid> <version>5.0.1.GA</version> </dependency> <dependency> <groupid>org.hibernate</groupid> <artifactid>hibernate-annotations</artifactid> <version>3.4.0.GA</version> <exclusions> <exclusion> <groupid>org.hibernate</groupid> <artifactid>hibernate-commons-annotations</artifactid> </exclusion> <exclusion> <groupid>org.hibernate</groupid> <artifactid>hibernate-core</artifactid> </exclusion> <exclusion> <groupid>dom4j</groupid> <artifactid>dom4j</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.naming</groupid> <artifactid>jnp-client</artifactid> <version>5.0.3.GA</version> </dependency> <dependency> <groupid>oswego-concurrent</groupid> <artifactid>concurrent</artifactid> <version>1.3.4-jboss-update1</version> </dependency> <dependency> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-proxy-clustered</artifactid> <version>1.0.1</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-proxy-impl</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-proxy-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.cluster</groupid> <artifactid>jboss-ha-server-api</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-proxy-spi</artifactid> <version>1.0.0</version> <classifier>client</classifier> </dependency> <dependency> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-proxy-impl</artifactid> <version>1.0.2</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>org.jboss.aspects</groupid> <artifactid>jboss-remoting-aspects</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-common</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-proxy-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-interceptors</artifactid> </exclusion> <exclusion> <groupid>org.jboss.metadata</groupid> <artifactid>jboss-metadata</artifactid> </exclusion> <exclusion> <groupid>org.jboss.naming</groupid> <artifactid>jnpserver</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-core</artifactid> <version>1.1.5</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>javassist</groupid> <artifactid>javassist</artifactid> </exclusion> <exclusion> <groupid>org.hibernate</groupid> <artifactid>hibernate</artifactid> </exclusion> <exclusion> <groupid>org.hibernate</groupid> <artifactid>hibernate-entitymanager</artifactid> </exclusion> <exclusion> <groupid>org.jboss.integration</groupid> <artifactid>jboss-jca-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss</groupid> <artifactid>jboss-vfs</artifactid> </exclusion> <exclusion> <groupid>org.jboss.aop</groupid> <artifactid>jboss-aop</artifactid> </exclusion> <exclusion> <groupid>org.jboss.aop</groupid> <artifactid>jboss-aop-aspects</artifactid> </exclusion> <exclusion> <groupid>org.jboss.cache</groupid> <artifactid>jbosscache-core</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-cache</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-endpoint</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-security</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-timerservice-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-ext-api-impl</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-metadata</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-proxy-clustered</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-transactions</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-ejb-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jacc-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jca-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jms-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jpa</groupid> <artifactid>jboss-jpa-deployers</artifactid> </exclusion> <exclusion> <groupid>org.jboss.metadata</groupid> <artifactid>jboss-metadata</artifactid> </exclusion> <exclusion> <groupid>org.jboss.microcontainer</groupid> <artifactid>jboss-kernel</artifactid> </exclusion> <exclusion> <groupid>org.jboss.security</groupid> <artifactid>jbosssx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ws</groupid> <artifactid>jbossws-spi</artifactid> </exclusion> <exclusion> <groupid>quartz</groupid> <artifactid>quartz</artifactid> </exclusion> <exclusion> <groupid>sun-jaxws</groupid> <artifactid>jaxws-api</artifactid> </exclusion> <exclusion> <groupid>sun-jaxws</groupid> <artifactid>jsr181-api</artifactid> </exclusion> <exclusion> <groupid>trove</groupid> <artifactid>trove</artifactid> </exclusion> <exclusion> <groupid>org.jboss.aspects</groupid> <artifactid>jboss-remoting-aspects</artifactid> </exclusion> <exclusion> <groupid>org.jboss.cluster</groupid> <artifactid>jboss-ha-server-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-common</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-interceptors</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-proxy-impl</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-proxy-spi</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.remoting</groupid> <artifactid>jboss-remoting</artifactid> <version>2.5.1</version> </dependency> <dependency> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-core-spi</artifactid> <version>2.0.7.GA</version> </dependency> <dependency> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-core</artifactid> <version>2.0.7.GA</version> </dependency> <dependency> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-main</artifactid> <version>5.1.0.GA</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>org.jboss.bootstrap</groupid> <artifactid>jboss-bootstrap</artifactid> </exclusion> <exclusion> <groupid>gnu-getopt</groupid> <artifactid>getopt</artifactid> </exclusion> <exclusion> <groupid>log4j</groupid> <artifactid>log4j</artifactid> </exclusion> <exclusion> <groupid>org.jboss.logbridge</groupid> <artifactid>jboss-logbridge</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-j2se</artifactid> <version>5.1.0.GA</version> <exclusions> <exclusion> <groupid>org.jboss.integration</groupid> <artifactid>jboss-classloading-spi</artifactid> </exclusion> <exclusion> <groupid>apache-xerces</groupid> <artifactid>xml-apis</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-ext-api</artifactid> <version>1.0.0</version> <exclusions> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-ejb-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.metadata</groupid> <artifactid>jboss-metadata</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-server</artifactid> <version>5.1.0.GA</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>sun-jaxb</groupid> <artifactid>jaxb-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-deployment</artifactid> </exclusion> <exclusion> <groupid>org.jboss.bootstrap</groupid> <artifactid>jboss-bootstrap</artifactid> </exclusion> <exclusion> <groupid>org.jboss.integration</groupid> <artifactid>jboss-deployment-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jpa</groupid> <artifactid>jboss-jpa-deployers</artifactid> </exclusion> <exclusion> <groupid>org.jboss.security</groupid> <artifactid>jbosssx</artifactid> </exclusion> <exclusion> <groupid>log4j</groupid> <artifactid>log4j</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system-jmx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-jmx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-security</artifactid> </exclusion> <exclusion> <groupid>org.jboss.integration</groupid> <artifactid>jboss-transaction-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jacc-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jms-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ws.native</groupid> <artifactid>jbossws-native-saaj</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ws.native</groupid> <artifactid>jbossws-native-jaxws</artifactid> </exclusion> <exclusion> <groupid>javax.security</groupid> <artifactid>jaas</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jca-api</artifactid> </exclusion> <exclusion> <groupid>bcel</groupid> <artifactid>bcel</artifactid> </exclusion> <exclusion> <groupid>jpl-util</groupid> <artifactid>jpl-util</artifactid> </exclusion> <exclusion> <groupid>jpl-pattern</groupid> <artifactid>jpl-pattern</artifactid> </exclusion> <exclusion> <groupid>org.jboss</groupid> <artifactid>jbossxb</artifactid> </exclusion> <exclusion> <groupid>org.jboss.naming</groupid> <artifactid>jnp-server</artifactid> </exclusion> <exclusion> <groupid>gnu-getopt</groupid> <artifactid>getopt</artifactid> </exclusion> <exclusion> <groupid>org.jboss.metadata</groupid> <artifactid>jboss-metadata</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-ejb-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.naming</groupid> <artifactid>jnpserver</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-security</artifactid> <version>1.0.0</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>org.jboss.aspects</groupid> <artifactid>jboss-current-invocation-aspects</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-interceptors</artifactid> </exclusion> <exclusion> <groupid>org.jboss.security</groupid> <artifactid>jbosssx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jacc-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-ext-api-impl</artifactid> </exclusion> <exclusion> <groupid>org.jboss.aop</groupid> <artifactid>jboss-aop</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-metadata</artifactid> </exclusion> <exclusion> <groupid>org.jboss.metadata</groupid> <artifactid>jboss-metadata</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.security</groupid> <artifactid>jbosssx-client</artifactid> <version>2.0.3.SP1</version> </dependency> <dependency> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-client</artifactid> <version>2.0.7.GA</version> </dependency> <dependency> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-client-spi</artifactid> <version>2.0.7.GA</version> <exclusions> <exclusion> <groupid>org.jboss.man</groupid> <artifactid>jboss-managed</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system-jmx</artifactid> <version>5.1.0.GA</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>apache-xerces</groupid> <artifactid>xml-apis</artifactid> </exclusion> <exclusion> <groupid>org.jboss</groupid> <artifactid>jboss-vfs</artifactid> </exclusion> <exclusion> <groupid>org.jboss</groupid> <artifactid>jbossxb</artifactid> </exclusion> <exclusion> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-impl</artifactid> </exclusion> <exclusion> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-structure-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-vfs</artifactid> </exclusion> <exclusion> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-vfs-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.bootstrap</groupid> <artifactid>jboss-bootstrap</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-jmx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.microcontainer</groupid> <artifactid>jboss-dependency</artifactid> </exclusion> <exclusion> <groupid>org.jboss.microcontainer</groupid> <artifactid>jboss-kernel</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.slf4j</groupid> <artifactid>slf4j-jboss-logging</artifactid> <version>1.0.2.GA</version> </dependency> <dependency> <groupid>org.jboss.logging</groupid> <artifactid>jboss-logging-jdk</artifactid> <version>2.1.0.GA</version> </dependency> <dependency> <groupid>org.jboss.logging</groupid> <artifactid>jboss-logging-log4j</artifactid> <version>2.1.0.GA</version> <exclusions> <exclusion> <groupid>log4j</groupid> <artifactid>log4j</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.logging</groupid> <artifactid>jboss-logging-spi</artifactid> <version>2.1.0.GA</version> </dependency> <dependency> <groupid>org.jboss.ejb3</groupid> <artifactid>jboss-ejb3-common</artifactid> <version>1.0.0</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>org.jboss.microcontainer</groupid> <artifactid>jboss-kernel</artifactid> </exclusion> <exclusion> <groupid>org.jboss.metadata</groupid> <artifactid>jboss-metadata</artifactid> </exclusion> <exclusion> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-spi</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-server</artifactid> <version>5.1.0.GA</version> <classifier>jmx-invoker-adaptor-client</classifier> <exclusions> <exclusion> <groupid>sun-jaxb</groupid> <artifactid>jabx-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-deployment</artifactid> </exclusion> <exclusion> <groupid>org.jboss.bootstrap</groupid> <artifactid>jboss-bootstrap</artifactid> </exclusion> <exclusion> <groupid>org.jboss.integration</groupid> <artifactid>jboss-deployment-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jpa</groupid> <artifactid>jbopss-jpa-deployers</artifactid> </exclusion> <exclusion> <groupid>org.jboss.security</groupid> <artifactid>jbosssx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.metadata</groupid> <artifactid>jboss-metadata</artifactid> </exclusion> <exclusion> <groupid>log4j</groupid> <artifactid>log4j</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system-jmx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-jmx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-ejb-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-security</artifactid> </exclusion> <exclusion> <groupid>org.jboss.integration</groupid> <artifactid>jboss-transaction-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jacc-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-jms-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ws.native</groupid> <artifactid>jbossws-native-saaj</artifactid> </exclusion> <exclusion> <groupid>org.jboss.ws.native</groupid> <artifactid>jbossws-native-jaxws</artifactid> </exclusion> <exclusion> <groupid>javax.security</groupid> <artifactid>jaas</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jca-api</artifactid> </exclusion> <exclusion> <groupid>bcel</groupid> <artifactid>bcel</artifactid> </exclusion> <exclusion> <groupid>jpl-util</groupid> <artifactid>jpl-util</artifactid> </exclusion> <exclusion> <groupid>jpl-pattern</groupid> <artifactid>jpl-pattern</artifactid> </exclusion> <exclusion> <groupid>org.jboss</groupid> <artifactid>jbossxb</artifactid> </exclusion> <exclusion> <groupid>org.jboss.naming</groupid> <artifactid>jnpserver</artifactid> </exclusion> <exclusion> <groupid>gnu-getopt</groupid> <artifactid>getopt</artifactid> </exclusion> <exclusion> <groupid>sun-jaxb</groupid> <artifactid>jaxb-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jpa</groupid> <artifactid>jboss-jpa-deployers</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-jms-api</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-management</artifactid> <version>5.1.0.GA</version> <classifier>jsr77-client</classifier> <exclusions> <exclusion> <groupid>org.jboss.deployers</groupid> <artifactid>jboss-deployers-vfs</artifactid> </exclusion> <exclusion> <groupid>org.jboss.microcontainer</groupid> <artifactid>jboss-kernel</artifactid> </exclusion> <exclusion> <groupid>org.jboss.cl</groupid> <artifactid>jboss-classloading-vfs</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-server</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system</artifactid> </exclusion> <exclusion> <groupid>org.jboss.cluster</groupid> <artifactid>jboss-ha-server-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.bootstrap</groupid> <artifactid>jboss-bootstrap</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-connector</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-cluster</artifactid> </exclusion> <exclusion> <groupid>apache-xerces</groupid> <artifactid>xml-apis</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-iiop</artifactid> <version>5.1.0.GA</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>apache-avalon</groupid> <artifactid>avalon-framework</artifactid> </exclusion> <exclusion> <groupid>apache-xerces</groupid> <artifactid>xml-apis</artifactid> </exclusion> <exclusion> <groupid>jacorb</groupid> <artifactid>jacorb</artifactid> </exclusion> <exclusion> <groupid>javax.security</groupid> <artifactid>jaas</artifactid> </exclusion> <exclusion> <groupid>javax.transcation</groupid> <artifactid>jta</artifactid> </exclusion> <exclusion> <groupid>log4j</groupid> <artifactid>log4j</artifactid> </exclusion> <exclusion> <groupid>org.jboss.integration</groupid> <artifactid>jboss-classloading-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.integration</groupid> <artifactid>jboss-corba-ots-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.integration</groupid> <artifactid>jboss-transaction-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.javaee</groupid> <artifactid>jboss-ejb-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-main</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-server</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-security</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system-jmx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.metadata</groupid> <artifactid>jboss-metadata</artifactid> </exclusion> <exclusion> <groupid>javax.transaction</groupid> <artifactid>jta</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.cluster</groupid> <artifactid>jboss-ha-client</artifactid> <version>1.1.1.GA</version> <exclusions> <exclusion> <groupid>org.jboss.aspects</groupid> <artifactid>jboss-remoting-aspects</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-cluster</artifactid> <version>5.1.0.GA</version> <classifier>jboss-ha-legacy-client</classifier> <exclusions> <exclusion> <groupid>log4j</groupid> <artifactid>log4j</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-server</artifactid> </exclusion> <exclusion> <groupid>jgroups</groupid> <artifactid>jgroups</artifactid> </exclusion> <exclusion> <groupid>org.jboss.cluster</groupid> <artifactid>jboss-ha-server-api</artifactid> </exclusion> <exclusion> <groupid>org.jboss.cluster</groupid> <artifactid>jboss-ha-server-cache-spi</artifactid> </exclusion> <exclusion> <groupid>org.jboss.cluster</groupid> <artifactid>jboss-ha-server-jbc</artifactid> </exclusion> <exclusion> <groupid>org.jboss.cluster</groupid> <artifactid>jboss-ha-server-cache-jbc</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system-jmx</artifactid> </exclusion> <exclusion> <groupid>org.jboss.jbossas</groupid> <artifactid>jboss-as-system</artifactid> </exclusion> <exclusion> <groupid>org.jboss.bootstrap</groupid> <artifactid>jboss-bootstrap</artifactid> </exclusion> <exclusion> <groupid>javax.transaction</groupid> <artifactid>jta</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.slf4j</groupid> <artifactid>slf4j-api</artifactid> <version>1.5.6</version> </dependency> <dependency> <groupid>org.jboss.aop</groupid> <artifactid>jboss-aop</artifactid> <version>2.1.1.GA</version> <classifier>client</classifier> <exclusions> <exclusion> <groupid>apache-xerces</groupid> <artifactid>xml-apis</artifactid> </exclusion> <exclusion> <groupid>org.apache.ant</groupid> <artifactid>ant</artifactid> </exclusion> <exclusion> <groupid>javassist</groupid> <artifactid>javassist</artifactid> </exclusion> <exclusion> <groupid>org.jboss</groupid> <artifactid>jboss-reflect</artifactid> </exclusion> <exclusion> <groupid>qdox</groupid> <artifactid>qdox</artifactid> </exclusion> <exclusion> <groupid>trove</groupid> <artifactid>trove</artifactid> </exclusion> <exclusion> <groupid>log4j</groupid> <artifactid>log4j</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss</groupid> <artifactid>jboss-common-core</artifactid> <version>2.2.14.GA</version> </dependency> <dependency> <groupid>org.jboss.security</groupid> <artifactid>jboss-security-spi</artifactid> <version>2.0.3.SP1</version> </dependency> <dependency> <groupid>org.jboss</groupid> <artifactid>jboss-mdr</artifactid> <version>2.0.1.GA</version> <exclusions> <exclusion> <groupid>org.jboss</groupid> <artifactid>jboss-reflect</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>org.jboss.client</groupid> <artifactid>jboss-client</artifactid> <version>5.1.0.CR1</version> </dependency> <dependency> <groupid>org.apache</groupid> <artifactid>xmlsec</artifactid> <version>1.4.2</version> </dependency> <dependency> <groupid>commons-logging</groupid> <artifactid>commons-logging</artifactid> <version>1.1.0.jboss</version> </dependency> <dependency> <groupid>org.jboss.integration</groupid> <artifactid>jboss-integration</artifactid> <version>5.1.0.GA</version> </dependency> <dependency> <groupid>jboss</groupid> <artifactid>jboss-serialization</artifactid> <version>1.0.3.GA</version> </dependency> <dependency> <groupid>org.hibernate</groupid> <artifactid>ejb3-persistence</artifactid> <version>1.0.2.GA</version> </dependency> <!-- andere libs --> <dependency> <groupid>org.jboss.aspects</groupid> <artifactid>jboss-remoting-aspects</artifactid> <version>1.0.2</version> <exclusions> <exclusion> <groupid>org.jboss.aop</groupid> <artifactid>jboss-aop</artifactid> </exclusion> <exclusion> <groupid>org.jboss.microcontainer</groupid> <artifactid>jboss-kernel</artifactid> </exclusion> <exclusion> <groupid>org.jboss.security</groupid> <artifactid>jbosssx</artifactid> </exclusion> </exclusions> </dependency> <dependency> <groupid>javassist</groupid> <artifactid>javassist</artifactid> <version>3.10.0.GA</version> </dependency> |
Today I had a problem compiling and installing a simple maven project.
Every time I ran “mvn install” I received the following error:
Error installing artifact's metadata: Error installing metadata: Error updating group repository metadata input contained no data
The problem here was an empty maven-metadata-local.xml in my local repository of the artifact I wanted to install. After completely removing this artifact from my repository an install was possible.
Sometimes it is necessary to handle a parameter of type object different for the real type. So you have to use instanceof to determine the type of an object. If you are need to check if it is an array, you can use the Reflection-API provided by the JRE. The Reflection API is a comfortable and rich functional API to inspect and manipulate Objects at runtime. One example could be to access private fields at runtime.
I had the problem to serialize some variables to JavaScript, so I wrote me a simple function:
1 | public void objectToJavaScript(Object object, StringBuffer buf); |
If the given object is primitive I would simple add it to the provided StringBuffer, but if it is an array I need to output ‘[‘ and ‘]’ with the given parameters. So I have to check if the object is an array:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | public void objectToJavaScript(Object object, StringBuffer buf) { if (object == null) { buf.append("null"); return; } ... //other types if (object.getClass().isArray()) { buf.append('['); //TODO output array content buf.append(']'); return; } ... } |
But how to access each entry of the array? One way could be to cast the object to Object[]. Unfortunately if the array is an array of primtive types this would throw a ClassCastException. So we have to use the functions, provided by java.lang.reflect.Array. The full code looks like:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | public void objectToJavaScript(Object object, StringBuffer buf) { if (object == null) { buf.append("null"); return; } ... //other types if (object.getClass().isArray()) { buf.append('['); int len = java.lang.reflect.Array.getLength(object); for(int i = 0; i < len; i++) { if (i > 0) buf.append(','); objectToJavaScript(java.lang.reflect.Array.get(object, i), buf); } buf.append(']'); return; } ... } |
Today I had another time the problem to execute many short tasks in a thread pooled environment. One way could be to write the pooling itselfs (like the other times in history ;)). But I thought: Why to reinvent the wheel every time and not using standardized libraries like the java.util.concurrent.*?
What I want:
So I looked at the given Examples and the Executors-Class, which provides fast and simple methods:
So we cannot use the predefined methods and need to instantiate ThreadPoolExecutor directly.
The Standard Service Life of Java 5 expired on Friday, October 30th. This is not really tradic, because Sun provides a Java SE 6 since December 2006. But on the other side on Mac OS X (up to 10.5. Leopoard) the default JRE is Version 5.0. 
Apple only published a Version 6 for 64 bit Intel processors. So many desktop applications still uses Java 5 as basis. It would be interessting, what Apple will do, if critical bugs in Java 5 would be found.
An overview of the whole EOL-Policy for Java can be seen at http://java.sun.com/products/archive/eol.policy.html
The EJB3 Standard provides some annotations to handle general approaches, like transactions (@TransactionAttribute) and security (@RolesAllowed, etc.). To use these methods, you only have to add them to the concerning method.
1 2 3 4 5 6 7 8 | @Stateless @Local(SampleStateless.class) public class SampleStatelessBean implements SampleStateless { @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW) public void sampleMethod() { // do some stuff } } |
Sometimes you have to call methods of other business objects to handle the business logic. For example you have a batch update separated into many small update steps. Here you want to split the main transaction into several small transactions and the main part should have no transaction, because it only handles the reading of external data (The example code is not complete and should only demonstrate the usage of the annotations.).
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | @Stateless @Local(SampleStateless.class) public class SampleStatelessBean implements SampleStateless { @TransactionAttribute(TransactionAttributeType.NEVER) public void import() { //read some data while (haveData) { importData(subData); } } @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW) private void importData(List data) { // do some stuff } } |
This above code is unfortunately NOT CORRECT. The reason is that the @TransactionAttribute-annotations will only be honored, if you call the method via a business interface. So the first solutions is to inject the bean itself and call the submethod via the injected bean.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | @Stateless @Local(SampleStateless.class) public class SampleStatelessBean implements SampleStateless { @EJB private SampleStateless bp; @TransactionAttribute(TransactionAttributeType.NEVER) public void import() { //read some data while (haveData) { bp.importData(subData); } } @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW) public void importData(List data) { // do some stuff } } |
Another solution, which is quite faster on JBoss in my tests, is to use the SessionContext to get a reference to the current business object.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | @Stateless @Local(SampleStateless.class) public class SampleStatelessBean implements SampleStateless { private SampleStateless bp; @Resource private SessionContext ctx; @PostConstruct public void init() { bp = ctx.getBusinessObject(SampleStateless.class); } @TransactionAttribute(TransactionAttributeType.NEVER) public void import() { //read some data while (haveData) { bp.importData(subData); } } @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW) public void importData(List data) { // do some stuff } } |
Today I tried to read a JPEG with the ImageIO-Library, provided by the JRE. But instead of a wonderful image I only received the following exception:
1 2 3 4 5 6 7 8 | java.lang.IllegalArgumentException: bandOffsets.length is wrong! at javax.imageio.ImageTypeSpecifier$Interleaved.< init >(ImageTypeSpecifier.java:382) at javax.imageio.ImageTypeSpecifier.createInterleaved(ImageTypeSpecifier.java:495) at com.sun.imageio.plugins.jpeg.JPEGImageReader.getImageTypes(JPEGImageReader.java:743) at com.sun.imageio.plugins.jpeg.JPEGImageReader.readInternal(JPEGImageReader.java:935) at com.sun.imageio.plugins.jpeg.JPEGImageReader.read(JPEGImageReader.java:912) at javax.imageio.ImageIO.read(ImageIO.java:1400) at javax.imageio.ImageIO.read(ImageIO.java:1322) |
With an EXIF-Reader (by the way a nice website) I tried to analyze the picture and saw the picture includes an embedded color profile “(unrecognized embedded color profile ‘SWOP (Coated), 20%’)”. A little bit more research showed the currently unresolved bugs in the JRE (especially ImageIO-Library; #4799903 and #5100094). So I’m not the only person, who had the problem. There are some code snippets and bug workarounds on the net trying to convert CMYK or YCCK to RGB. For my picture the CMYK-Solution doesn’t work, because the JRE means the embedded ICC profile doesn’t match the given raster (raster contains 3 bytes per pixel, but CMYK 4 bytes). But Werner Randelshofer wrote that it is important to use the given ICC, because of unexpectable color problems. So just to use a fix conversion method is not the wanted solution.
Then I tried first not to use the ImageIO library, but to give AWT-Toolkit a try. I was very surprised, that this function can correctly read the given image. So I didn’t need to handle the embedded ICC profiles directly. I modified my code to use this method, if ImageIO fails. The resulting code looks like:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | private BufferedImage readImage(InputStream picture) throws IOException { ByteArrayOutputStream buf = new ByteArrayOutputStream(); byte[] b = new byte[10240]; int l = 0; while ((l = picture.read(b)) >= 0) { buf.write(b, 0, l); } buf.close(); byte[] picturedata = buf.toByteArray(); buf = null; try { return ImageIO.read(new ByteArrayInputStream(picturedata)); } catch (IllegalArgumentException e) { ImageInputStream input = ImageIO .createImageInputStream(new ByteArrayInputStream( picturedata)); Iterator< ImageReader > readers = ImageIO.getImageReaders(input); ImageReader reader = null; while (readers.hasNext()) { reader = (ImageReader) readers.next(); if (reader.canReadRaster()) break; } if (reader == null) throw new IOException("no reader found"); // Set the input. reader.setInput(input); int w = reader.getWidth(0); int h = reader.getHeight(0); BufferedImage image; image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); Image intImage = Toolkit.getDefaultToolkit().createImage( picturedata); new ImageIcon(intImage); Graphics2D g = image.createGraphics(); g.drawImage(intImage, 0, 0, null); g.dispose(); return image; } } |
The Toolkit-Method also has no problems on servers without an X11 server.
If you use maven to compile and handle your applications, you may want to directly call it from console. Here you can use the Maven-Exec-Plugin. This plugin provides an easy method to execute Java-Classes. Of course you can configure the plugin as usual in you pom.xml, but you also can directly use it from the console.
To run a simple class you can use:
1 | mvn exec:java -Dexec.mainClass=info.javahelp.examples.Example |
The advantage is that java is correctly called with all used jar-dependencies and the resulting classpath.
To affect the used dependencies you can also define the used scope (default: compile). For example your application is in testing scope you can run it with:
1 | mvn exec:java -Dexec.mainClass=info.javahelp.examples.tests.Example -Dexec.classpathScope=test |
Java provides a very flexible API for drawing images. This API also support aliased drawing of lines, text, etc. To activate it, you have to set the RenderingHints of the Graphics-Object (line 3). After that all operations results in aliased objects. To draw half pixels, you can use g.scale or g.translate with double-values.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | BufferedImage image = new BufferedImage(200,200,BufferedImage.TYPE_INT_ARGB); Graphics2D g = image.createGraphics(); g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g.setColor(Color.white); g.fillRect(0, 0, 199, 199); g.setColor(Color.black); double step = 2.5; g.scale(step, 1); for (int i = 0; i < (int)(200/step); i++) { if (i % 2 == 1) { g.fillRect(0, 0, 1, 199); } g.translate(1, 0); } ImageIO.write(image, "png", new File("test.png")); |