java - 为什么 apache.commons.text.InterpolatorStringLookup 缺少合适的构造函数？

Question

我正在尝试使用apache.commons.text (v1.4)。我已经安装了它的唯一依赖项 apache.commons.lang3 (v3.7)，它本身没有依赖项。

当我尝试编译这些包时，出现错误

[javac] /src/java/org/apache/commons/text/lookup/InterpolatorStringLookup.java:91: error: no suitable constructor found for InterpolatorStringLookup(HashMap<Object,Object>
,StringLookup,boolean)
    [javac]         this(new HashMap<>(), defaultStringLookup, true);
    [javac]         ^
    [javac]     constructor InterpolatorStringLookup.InterpolatorStringLookup(Map<String,StringLookup>,StringLookup,boolean) is not applicable
    [javac]       (actual argument HashMap<Object,Object> cannot be converted to Map<String,StringLookup> by method invocation conversion)
    [javac]     constructor InterpolatorStringLookup.InterpolatorStringLookup(StringLookup) is not applicable
    [javac]       (actual and formal argument lists differ in length)
    [javac]     constructor InterpolatorStringLookup.<V>InterpolatorStringLookup(Map<String,V>) is not applicable
    [javac]       (cannot instantiate from arguments because actual and formal argument lists differ in length)
    [javac]     constructor InterpolatorStringLookup.InterpolatorStringLookup() is not applicable
    [javac]       (actual and formal argument lists differ in length)
    [javac]   where V is a type-variable:
    [javac]     V extends Object declared in constructor <V>InterpolatorStringLookup(Map<String,V>)

为什么InterpolatorStringLookup缺少合适的构造函数？

Answer 1

InterpolatorStringLookup 类的所有构造函数都具有打包可见性。要实例化该类，您必须使用 StringLookupFactory 中的 interpolatorStringLookup() 方法。