1 – Reflection (as a concept) is indeed orthogonal to safety/security. There was a big emphasis in the design of java to make it a safe platform, with static typing, security manager, disciplined usage of class loader, and no way to screw pointers/memory. You can read the interview of James Gosling in Masterminds of programming, … Read more
I think that since System.out and System.err are instances of PrintStream, some more relaxed error handling was provided. This was probably, as other posters have mentioned, to smooth the way for those transitioning from C/C++ circa 1995. When the Reader/Writer API was added, PrintWriter was created to parallel the existing PrintStream. One application where this … Read more
The problem is that you have hibernate-core-4.0.0.Final.jar in your classpath, but Spring 3.1 uses hibernate-core-3.6.0.Final.jar (see here Spring 3.1 artifact and dependencies). Remove Hibernate 4.0 and put Hibernate 3.6 instead in your classpath. BTW, there might some more such miss matches. It’s better to use maven to take care of dependencies. EDIT – some more … Read more
You can never be sure that element will be found, actually this is purpose of functional tests – to tell you if anything changed on your page. But one thing which definitely helps is to add waits for the elements which are often causing NoSuchElementException like WebDriverWait wait = new WebDriverWait(webDriver, timeoutInSeconds); wait.until(ExpectedConditions.visibilityOfElementLocated(By.id<locator>));
First of all, android.graphics.Color is a class thats composed of only static methods. How and why did you create a new android.graphics.Color object? (This is completely useless and the object itself stores no data) But anyways… I’m going to assume your using some object that actually stores data… A integer is composed of 4 bytes … Read more
I think you will find of use the following two articles Use Microsoft’s Internet Information Server as a Java servlet engine Java + ISAPI + Jetty = JSP on IIS
Yes there are! <bean id=”customizableTraceInterceptor” class=”org.springframework.aop.interceptor.CustomizableTraceInterceptor”> <property name=”enterMessage” value=”Entering $[methodName]($[arguments])”/> <property name=”exitMessage” value=”Leaving $[methodName](): $[returnValue]”/> </bean> <aop:config> <aop:advisor advice-ref=”customizableTraceInterceptor” pointcut=”execution(public * BankAccountServlet.*(..))”/> </aop:config> Check out the CustomizableTraceInterceptor API, you can define separate enter/exit/exception messages with several placeholders: $[methodName] – replaced with the name of the method being invoked $[targetClassName] – replaced with the name of … Read more
When we set out with the goal to Java EE 6 certify Apache Tomcat as Apache TomEE, here are some of the gaps we had to fill in order to finally pass the Java EE 6 TCK. Not a complete list, but some highlights that might not be obvious even with the existing answers. No … Read more
You’ll have to hack the script bin/catalina.sh to get this to work. There are a bunch of lines like this in bin/catalina.sh: exec “$_RUNJDB” “$LOGGING_CONFIG” $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs=”$JAVA_ENDORSED_DIRS” -classpath “$CLASSPATH” \ … Just remove the second of those lines (the one with -Djava.endorsed.dirs) in each case and you should be back in business. … Read more
Use FileChannel.truncate: try (FileChannel outChan = new FileOutputStream(f, true).getChannel()) { outChan.truncate(newSize); }