Android-无法解析java.lang.StringIndexOutOfBoundsException

我很难找到解决方案，甚至无法找到这个错误的原因。此错误不存在于Eclipseused for testing中的同一代码中，但在Android Studio应用程序中使用时会因错误而崩溃

从Logcat：

 java.lang.IllegalStateException: Could not execute method of the activity
            at android.view.View$1.onClick(View.java:4020)
            at android.view.View.performClick(View.java:4780)
            at android.view.View$PerformClick.run(View.java:19866)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5257)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
     Caused by: java.lang.reflect.InvocationTargetException
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at android.view.View$1.onClick(View.java:4015)
            at android.view.View.performClick(View.java:4780)
            at android.view.View$PerformClick.run(View.java:19866)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5257)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
     Caused by: java.lang.ExceptionInInitializerError
            at com.bmc.thirdparty.org.apache.commons.lang.builder.ToStringStyle$MultiLineToStringStyle.<init>(ToStringStyle.java:2135)
            at com.bmc.thirdparty.org.apache.commons.lang.builder.ToStringStyle.<clinit>(ToStringStyle.java:79)
            at java.lang.Class.classForName(Native Method)
            at java.lang.Class.forName(Class.java:309)
            at java.lang.Class.forName(Class.java:273)
            at com.bmc.arsys.api.Config.if(Unknown Source)
            at com.bmc.arsys.api.Config.applyDefaults(Unknown Source)
            at com.bmc.arsys.apitransport.ApiConfig.<init>(Unknown Source)
            at com.bmc.arsys.api.Config.<init>(Unknown Source)
            at com.bmc.arsys.api.Config.<clinit>(Unknown Source)
            at com.bmc.arsys.api.session.a.a(Unknown Source)
            at com.bmc.arsys.api.session.a.<init>(Unknown Source)
            at com.bmc.arsys.api.ARServerUser.<clinit>(Unknown Source)
            at flashmanagment.app.ARS.initializeServer(ARS.java:41)
            at flashmanagment.app.MainActivity.loadData(MainActivity.java:51)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at android.view.View$1.onClick(View.java:4015)
            at android.view.View.performClick(View.java:4780)
            at android.view.View$PerformClick.run(View.java:19866)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5257)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
     Caused by: java.lang.StringIndexOutOfBoundsException: length=1; regionStart=0; regionLength=3
            at java.lang.String.startEndAndLength(String.java:504)
            at java.lang.String.substring(String.java:1333)
            at com.bmc.thirdparty.org.apache.commons.lang.SystemUtils.getJavaVersionAsFloat(SystemUtils.java:1122)
            at com.bmc.thirdparty.org.apache.commons.lang.SystemUtils.<clinit>(SystemUtils.java:818)
            at com.bmc.thirdparty.org.apache.commons.lang.builder.ToStringStyle$MultiLineToStringStyle.<init>(ToStringStyle.java:2135)
            at com.bmc.thirdparty.org.apache.commons.lang.builder.ToStringStyle.<clinit>(ToStringStyle.java:79)
            at java.lang.Class.classForName(Native Method)
            at java.lang.Class.forName(Class.java:309)
            at java.lang.Class.forName(Class.java:273)
            at com.bmc.arsys.api.Config.if(Unknown Source)
            at com.bmc.arsys.api.Config.applyDefaults(Unknown Source)
            at com.bmc.arsys.apitransport.ApiConfig.<init>(Unknown Source)
            at com.bmc.arsys.api.Config.<init>(Unknown Source)
            at com.bmc.arsys.api.Config.<clinit>(Unknown Source)
            at com.bmc.arsys.api.session.a.a(Unknown Source)
            at com.bmc.arsys.api.session.a.<init>(Unknown Source)
            at com.bmc.arsys.api.ARServerUser.<clinit>(Unknown Source)
            at flashmanagment.app.ARS.initializeServer(ARS.java:41)
            at flashmanagment.app.MainActivity.loadData(MainActivity.java:51)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at android.view.View$1.onClick(View.java:4015)
            at android.view.View.performClick(View.java:4780)
            at android.view.View$PerformClick.run(View.java:19866)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5257)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

从Java类：

public class ARS {

public static ARS instance = new ARS();

public static ARServerUser server;
public static ARS getInstance(){
    return instance;
}

public void initializeServer(String user, String password){
    server = new ARServerUser(user,password,null,"serverStringHere",portNumberHere);

}

同样，在Eclipse中使用相同的代码时没有出现错误。任何帮助都将不胜感激

编辑SystemUtils.java:1122

    1118    private static float More ...getJavaVersionAsFloat() {
1119        if (JAVA_VERSION_TRIMMED == null) {
1120            return 0f;
1121        }
1122        String str = JAVA_VERSION_TRIMMED.substring(0, 3);
1123        if (JAVA_VERSION_TRIMMED.length() >= 5) {
1124            str = str + JAVA_VERSION_TRIMMED.substring(4, 5);
1125        }
1126        try {
1127            return Float.parseFloat(str);
1128        } catch (Exception ex) {
1129            return 0;
1130        }
1131    }

---

你应该提供更多关于你的程序的信息，因为这段代码并不是全部。您正在尝试调用按钮单击，但应用程序的状态不正确

这似乎是库对Java版本格式做出一些假设的问题，在Eclipse和Android Studio这两种环境中，Java版本格式必须有所不同

变量/常量JAVA_VERSION_TRIMMED已设置为长度为1的值，但库假定它更长

为了进一步调试，您应该在SystemUtils第818行的静态初始值设定项块中设置断点，或者检查该行上发生的情况

---

一旦显示出来，您的选择就会有所不同。在这种情况下，您可能无法影响库。虽然Apache Commons Lang是开源的，并且可能会对其有所贡献，但您可能会发现通过BMC库传递这些更改会更加困难。

什么是SystemUtils.java行1122？@immibis在文章中添加了这一点

    1118    private static float More ...getJavaVersionAsFloat() {
1119        if (JAVA_VERSION_TRIMMED == null) {
1120            return 0f;
1121        }
1122        String str = JAVA_VERSION_TRIMMED.substring(0, 3);
1123        if (JAVA_VERSION_TRIMMED.length() >= 5) {
1124            str = str + JAVA_VERSION_TRIMMED.substring(4, 5);
1125        }
1126        try {
1127            return Float.parseFloat(str);
1128        } catch (Exception ex) {
1129            return 0;
1130        }
1131    }