Here is Java code equivalent for the given Smali code

```java
import android.os.HwBinder;
import android.os.IHwBinder;
import android.os.IHwInterface;
import android.os.NativeHandle;
import android.os.RemoteException;
import android.hidl.base.V1_0.IBase;
import java.util.Iterator;

public interface IBase extends IHwInterface {
    public static final String kInterfaceName = "android.hidl.base@1.0::IBase";

    public static IBase asInterface(IHwBinder binder) { // line 24
        if (binder == null) {
            return null;
        }
		
        IHwInterface iface = binder.queryLocalInterface(kInterfaceName); //line 29
        if (iface instanceof IBase) {
            return (IBase) iface;
        }
        IBase proxy = new IBase.Proxy(binder);
        try {
            Iterator<String> descriptorIterator = proxy.interfaceChain().iterator();
            while (descriptorIterator.hasNext()) {
                String descriptor = descriptorIterator.next();
                if (descriptor.equals(kInterfaceName)) {
                    return proxy;
                }
            }
        } catch (android.os.RemoteException e) {
        }
        return null;
    }

	public static IBase castFrom(IHwInterface iface) {
        IBase result = null;
        if (iface != null) {
            IHwBinder binder = iface.asBinder();
            result = IBase.asInterface(binder);
        }
        return result;
    }
	
	public static IBase getService() throws RemoteException {
    	String serviceName = "default";
    	return IBase.getService(serviceName);
	}
	
	public static IBase getService(String serviceName) throws RemoteException {
    	String descriptor = "android.hidl.base@1.0::IBase";
    	IHwBinder binder = HwBinder.getService(descriptor, serviceName);
    	return IBase.asInterface(binder);
	}
	
	public static IBase getService(String serviceName, boolean retry) throws RemoteException {
    	String interfaceName = "android.hidl.base@1.0::IBase";
    	IHwBinder binder = HwBinder.getService(interfaceName, serviceName, retry);
    	return IBase.asInterface(binder);
	}
	
	public static IBase getService(boolean retry) throws RemoteException {
    	String defaultString = "default";
    	return getService(defaultString, retry);
	}
	
	public abstract IHwBinder asBinder();
    public abstract void debug(NativeHandle fd, java.util.ArrayList<String> options) throws RemoteException;
    public abstract android.hidl.base.V1_0.DebugInfo getDebugInfo() throws RemoteException;
    public abstract java.util.ArrayList<byte[]> getHashChain() throws RemoteException;
	ArrayList<String> interfaceChain() throws RemoteException;
    String interfaceDescriptor() throws RemoteException;
    boolean linkToDeath(IHwBinder.DeathRecipient recipient, long cookie) throws RemoteException;
    void notifySyspropsChanged() throws RemoteException;
    void ping() throws RemoteException;
    void setHALInstrumentation() throws RemoteException;
    boolean unlinkToDeath(IHwBinder.DeathRecipient recipient) throws RemoteException;
}
```
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