jni 包 方法名

本文详细解析了Java中Object类的方法实现原理,包括equals、hashCode、toString等核心方法,并介绍了如何正确使用这些方法以及与JNI相关的注意事项。

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package com.xxx;
public class Object {

private static native void registerNatives();
static {
registerNatives();
}

public final native Class getClass();
public native int hashCode();
public boolean equals(Object obj) {
return (this == obj);
}
public String toString() {
return getClass().getName() + "@" + Integer.toHexString(hashCode());
}
public final native void notify();

public final native void notifyAll();

public final native void wait(long timeout) throws InterruptedException;

public final void wait(long timeout, int nanos) throws InterruptedException {
if (timeout < 0) {
throw new IllegalArgumentException("timeout value is negative");
}

if (nanos < 0 || nanos > 999999) {
throw new IllegalArgumentException(
"nanosecond timeout value out of range");
}

if (nanos >= 500000 || (nanos != 0 && timeout == 0)) {
timeout++;
}

wait(timeout);
}

public final void wait() throws InterruptedException {
wait(0);
}

protected void finalize() throws Throwable { }
}

////my solution
when u using the package in this java
you must compile the h file with package name.
example :
javah -jni -classpath .... com.xxx.Object;
so the h file not same as with this command:
javah -jni -classpath .... com.xxx.Object;
the result ,your native method name is modified to Java_com_xxx_Object_MethodName.
compile your dll file ,you will solve that problem.
burning@cjsdn
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