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java Programming Glossary: aconst_null' … != null' or 'null != …' best performance? http://stackoverflow.com/questions/2398588/null-or-null-best-performance public void nullNot Code Stack 2 Locals 1 Args_size 1 0 aconst_null 1 aload_0 2 getfield #2 Field value Ljava lang String 5 if_acmpeq..
Why is an anonymous inner class containing nothing generated from this code? http://stackoverflow.com/questions/2883181/why-is-an-anonymous-inner-class-containing-nothing-generated-from-this-code #2 class OuterClass PrivateInnerClass 3 dup 4 aload_0 5 aconst_null 6 invokespecial #3 Method OuterClass PrivateInnerClass. init.. of type 1 and the value of that default argument is 5 aconst_null . I've found that 1 doesn't get created if either of the following..
Which is more effective: if (null == variable) or if (variable == null)? http://stackoverflow.com/questions/3021195/which-is-more-effective-if-null-variable-or-if-variable-null push 0 12 istore_2 store For boolean b null variable 3 aconst_null push null 4 aload_1 load variable 5 if_acmpne 12 check if equal..
http://stackoverflow.com/questions/3110014/is-this-valid-java 3 .limit locals 1 Call the method that returns String aconst_null invokestatic TestWillThatCompile f Ljava util List Ljava lang.. Ljava lang String Call the method that returns Integer aconst_null invokestatic TestWillThatCompile f Ljava util List Ljava lang..
Accessing Java static final ivar value through reflection http://stackoverflow.com/questions/850148/accessing-java-static-final-ivar-value-through-reflection Ljava lang String Ljava lang StringBuilder 69 aload 7 71 aconst_null 72 invokevirtual #13 Method java lang reflect Field.get Ljava..
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